[{"external_id":{"isi":["001037346400005"]},"status":"public","intvolume":"        19","citation":{"apa":"Grober, D., Palaia, I., Ucar, M. C., Hannezo, E. B., Šarić, A., &#38; Palacci, J. A. (2023). Unconventional colloidal aggregation in chiral bacterial baths. <i>Nature Physics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41567-023-02136-x\">https://doi.org/10.1038/s41567-023-02136-x</a>","mla":"Grober, Daniel, et al. “Unconventional Colloidal Aggregation in Chiral Bacterial Baths.” <i>Nature Physics</i>, vol. 19, Springer Nature, 2023, pp. 1680–88, doi:<a href=\"https://doi.org/10.1038/s41567-023-02136-x\">10.1038/s41567-023-02136-x</a>.","ista":"Grober D, Palaia I, Ucar MC, Hannezo EB, Šarić A, Palacci JA. 2023. Unconventional colloidal aggregation in chiral bacterial baths. Nature Physics. 19, 1680–1688.","ama":"Grober D, Palaia I, Ucar MC, Hannezo EB, Šarić A, Palacci JA. Unconventional colloidal aggregation in chiral bacterial baths. <i>Nature Physics</i>. 2023;19:1680-1688. doi:<a href=\"https://doi.org/10.1038/s41567-023-02136-x\">10.1038/s41567-023-02136-x</a>","short":"D. Grober, I. Palaia, M.C. Ucar, E.B. Hannezo, A. Šarić, J.A. Palacci, Nature Physics 19 (2023) 1680–1688.","chicago":"Grober, Daniel, Ivan Palaia, Mehmet C Ucar, Edouard B Hannezo, Anđela Šarić, and Jérémie A Palacci. “Unconventional Colloidal Aggregation in Chiral Bacterial Baths.” <i>Nature Physics</i>. Springer Nature, 2023. <a href=\"https://doi.org/10.1038/s41567-023-02136-x\">https://doi.org/10.1038/s41567-023-02136-x</a>.","ieee":"D. Grober, I. Palaia, M. C. Ucar, E. B. Hannezo, A. Šarić, and J. A. Palacci, “Unconventional colloidal aggregation in chiral bacterial baths,” <i>Nature Physics</i>, vol. 19. Springer Nature, pp. 1680–1688, 2023."},"publication_status":"published","oa":1,"has_accepted_license":"1","date_published":"2023-11-01T00:00:00Z","ddc":["530"],"acknowledgement":"D.G. and J.P. thank E. Krasnopeeva, C. Guet, G. Guessous and T. Hwa for providing the E. coli strains. This material is based upon work supported by the US Department of Energy under award DE-SC0019769. I.P. acknowledges funding by the European Union’s Horizon 2020 research and innovation programme under Marie Skłodowska-Curie Grant Agreement No. 101034413. A.Š. acknowledges funding from the European Research Council under the European Union’s Horizon 2020 research and innovation programme (Grant No. 802960). M.C.U. acknowledges funding from the European Union’s Horizon 2020 research and innovation programme under Marie Skłodowska-Curie Grant Agreement No. 754411.","year":"2023","_id":"13971","page":"1680-1688","abstract":[{"text":"When in equilibrium, thermal forces agitate molecules, which then diffuse, collide and bind to form materials. However, the space of accessible structures in which micron-scale particles can be organized by thermal forces is limited, owing to the slow dynamics and metastable states. Active agents in a passive fluid generate forces and flows, forming a bath with active fluctuations. Two unanswered questions are whether those active agents can drive the assembly of passive components into unconventional states and which material properties they will exhibit. Here we show that passive, sticky beads immersed in a bath of swimming Escherichia coli bacteria aggregate into unconventional clusters and gels that are controlled by the activity of the bath. We observe a slow but persistent rotation of the aggregates that originates in the chirality of the E. coli flagella and directs aggregation into structures that are not accessible thermally. We elucidate the aggregation mechanism with a numerical model of spinning, sticky beads and reproduce quantitatively the experimental results. We show that internal activity controls the phase diagram and the structure of the aggregates. Overall, our results highlight the promising role of active baths in designing the structural and mechanical properties of materials with unconventional phases.","lang":"eng"}],"date_updated":"2024-01-30T12:26:55Z","month":"11","oa_version":"Published Version","type":"journal_article","volume":19,"file_date_updated":"2024-01-30T12:26:08Z","date_created":"2023-08-06T22:01:11Z","project":[{"grant_number":"101034413","name":"IST-BRIDGE: International postdoctoral program","_id":"fc2ed2f7-9c52-11eb-aca3-c01059dda49c","call_identifier":"H2020"},{"grant_number":"802960","call_identifier":"H2020","_id":"eba2549b-77a9-11ec-83b8-a81e493eae4e","name":"Non-Equilibrium Protein Assembly: from Building Blocks to Biological Machines"},{"grant_number":"754411","call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425","name":"ISTplus - Postdoctoral Fellowships"}],"isi":1,"language":[{"iso":"eng"}],"publication_identifier":{"issn":["1745-2473"],"eissn":["1745-2481"]},"doi":"10.1038/s41567-023-02136-x","quality_controlled":"1","publisher":"Springer Nature","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","department":[{"_id":"EdHa"},{"_id":"AnSa"},{"_id":"JePa"}],"publication":"Nature Physics","article_processing_charge":"Yes","scopus_import":"1","ec_funded":1,"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"article_type":"original","author":[{"full_name":"Grober, Daniel","id":"abdfc56f-34fb-11ee-bd33-fd766fce5a99","first_name":"Daniel","last_name":"Grober"},{"full_name":"Palaia, Ivan","id":"9c805cd2-4b75-11ec-a374-db6dd0ed57fa","orcid":" 0000-0002-8843-9485 ","last_name":"Palaia","first_name":"Ivan"},{"full_name":"Ucar, Mehmet C","id":"50B2A802-6007-11E9-A42B-EB23E6697425","orcid":"0000-0003-0506-4217","last_name":"Ucar","first_name":"Mehmet C"},{"orcid":"0000-0001-6005-1561","id":"3A9DB764-F248-11E8-B48F-1D18A9856A87","full_name":"Hannezo, Edouard B","last_name":"Hannezo","first_name":"Edouard B"},{"last_name":"Šarić","first_name":"Anđela","id":"bf63d406-f056-11eb-b41d-f263a6566d8b","orcid":"0000-0002-7854-2139","full_name":"Šarić, Anđela"},{"last_name":"Palacci","first_name":"Jérémie A","full_name":"Palacci, Jérémie A","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","orcid":"0000-0002-7253-9465"}],"file":[{"file_size":6365607,"relation":"main_file","content_type":"application/pdf","creator":"dernst","file_name":"2023_NaturePhysics_Grober.pdf","success":1,"date_created":"2024-01-30T12:26:08Z","access_level":"open_access","file_id":"14906","date_updated":"2024-01-30T12:26:08Z","checksum":"7e282c2ebc0ac82125a04f6b4742d4c1"}],"day":"01","title":"Unconventional colloidal aggregation in chiral bacterial baths"},{"year":"2023","acknowledgement":"Army Research Office. Grant Number: W911NF-20-1-0112","_id":"12822","type":"journal_article","month":"01","oa_version":"Published Version","abstract":[{"lang":"eng","text":"Gears and cogwheels are elemental components of machines. They restrain degrees of freedom and channel power into a specified motion. Building and powering small-scale cogwheels are key steps toward feasible micro and nanomachinery. Assembly, energy injection, and control are, however, a challenge at the microscale. In contrast with passive gears, whose function is to transmit torques from one to another, interlocking and untethered active gears have the potential to unveil dynamics and functions untapped by externally driven mechanisms. Here, it is shown the assembly and control of a family of self-spinning cogwheels with varying teeth numbers and study the interlocking of multiple cogwheels. The teeth are formed by colloidal microswimmers that power the structure. The cogwheels are autonomous and active, showing persistent rotation. Leveraging the angular momentum of optical vortices, we control the direction of rotation of the cogwheels. The pairs of interlocking and active cogwheels that roll over each other in a random walk and have curvature-dependent mobility are studied. This behavior is leveraged to self-position parts and program microbots, demonstrating the ability to pick up, direct, and release a load. The work constitutes a step toward autonomous machinery with external control as well as (re)programmable microbots and matter."}],"date_updated":"2023-08-01T14:06:50Z","date_created":"2023-04-12T08:30:03Z","file_date_updated":"2023-04-17T06:44:17Z","volume":5,"status":"public","external_id":{"arxiv":["2201.03333"],"isi":["000852291200001"]},"citation":{"mla":"Martinet, Quentin, et al. “Rotation Control, Interlocking, and Self‐positioning of Active Cogwheels.” <i>Advanced Intelligent Systems</i>, vol. 5, no. 1, 2200129, Wiley, 2023, doi:<a href=\"https://doi.org/10.1002/aisy.202200129\">10.1002/aisy.202200129</a>.","ista":"Martinet Q, Aubret A, Palacci JA. 2023. Rotation control, interlocking, and self‐positioning of active cogwheels. Advanced Intelligent Systems. 5(1), 2200129.","apa":"Martinet, Q., Aubret, A., &#38; Palacci, J. A. (2023). Rotation control, interlocking, and self‐positioning of active cogwheels. <i>Advanced Intelligent Systems</i>. Wiley. <a href=\"https://doi.org/10.1002/aisy.202200129\">https://doi.org/10.1002/aisy.202200129</a>","ama":"Martinet Q, Aubret A, Palacci JA. Rotation control, interlocking, and self‐positioning of active cogwheels. <i>Advanced Intelligent Systems</i>. 2023;5(1). doi:<a href=\"https://doi.org/10.1002/aisy.202200129\">10.1002/aisy.202200129</a>","short":"Q. Martinet, A. Aubret, J.A. Palacci, Advanced Intelligent Systems 5 (2023).","ieee":"Q. Martinet, A. Aubret, and J. A. Palacci, “Rotation control, interlocking, and self‐positioning of active cogwheels,” <i>Advanced Intelligent Systems</i>, vol. 5, no. 1. Wiley, 2023.","chicago":"Martinet, Quentin, Antoine Aubret, and Jérémie A Palacci. “Rotation Control, Interlocking, and Self‐positioning of Active Cogwheels.” <i>Advanced Intelligent Systems</i>. Wiley, 2023. <a href=\"https://doi.org/10.1002/aisy.202200129\">https://doi.org/10.1002/aisy.202200129</a>."},"intvolume":"         5","has_accepted_license":"1","oa":1,"publication_status":"published","ddc":["530"],"date_published":"2023-01-01T00:00:00Z","department":[{"_id":"JePa"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","publisher":"Wiley","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"article_type":"original","article_processing_charge":"No","publication":"Advanced Intelligent Systems","file":[{"success":1,"file_name":"2023_AdvancedIntelligentSystems_Martinet.pdf","relation":"main_file","content_type":"application/pdf","file_size":2414125,"creator":"dernst","date_updated":"2023-04-17T06:44:17Z","file_id":"12840","checksum":"d48fc41d39892e7fa0d44cb352dd46aa","date_created":"2023-04-17T06:44:17Z","access_level":"open_access"}],"day":"01","author":[{"first_name":"Quentin","last_name":"Martinet","full_name":"Martinet, Quentin","id":"b37485a8-d343-11eb-a0e9-df8c484ef8ab"},{"first_name":"Antoine","last_name":"Aubret","full_name":"Aubret, Antoine"},{"full_name":"Palacci, Jérémie A","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","orcid":"0000-0002-7253-9465","last_name":"Palacci","first_name":"Jérémie A"}],"article_number":"2200129","title":"Rotation control, interlocking, and self‐positioning of active cogwheels","arxiv":1,"issue":"1","language":[{"iso":"eng"}],"isi":1,"publication_identifier":{"issn":["2640-4567"]},"quality_controlled":"1","doi":"10.1002/aisy.202200129"},{"date_created":"2022-08-28T22:02:00Z","volume":377,"abstract":[{"lang":"eng","text":"If you mix fruit syrups with alcohol to make a schnapps, the two liquids will remain perfectly blended forever. But if you mix oil with vinegar to make a vinaigrette, the oil and vinegar will soon separate back into their previous selves. Such liquid-liquid phase separation is a thermodynamically driven phenomenon and plays an important role in many biological processes (1). Although energy injection at the macroscale can reverse the phase separation—a strong shake is the normal response to a separated vinaigrette—little is known about the effect of energy added at the microscopic level on phase separation. This fundamental question has deep ramifications, notably in biology, because active processes also make the interior of a living cell different from a dead one. On page 768 of this issue, Adkins et al. (2) examine how mechanical activity at the microscopic scale affects liquid-liquid phase separation and allows liquids to climb surfaces."}],"date_updated":"2022-09-05T07:37:37Z","oa_version":"None","type":"journal_article","month":"08","page":"710-711","_id":"11996","year":"2022","date_published":"2022-08-12T00:00:00Z","publication_status":"published","citation":{"ama":"Palacci JA. A soft active matter that can climb walls. <i>Science</i>. 2022;377(6607):710-711. doi:<a href=\"https://doi.org/10.1126/science.adc9202\">10.1126/science.adc9202</a>","mla":"Palacci, Jérémie A. “A Soft Active Matter That Can Climb Walls.” <i>Science</i>, vol. 377, no. 6607, American Association for the Advancement of Science, 2022, pp. 710–11, doi:<a href=\"https://doi.org/10.1126/science.adc9202\">10.1126/science.adc9202</a>.","ista":"Palacci JA. 2022. A soft active matter that can climb walls. Science. 377(6607), 710–711.","apa":"Palacci, J. A. (2022). A soft active matter that can climb walls. <i>Science</i>. American Association for the Advancement of Science. <a href=\"https://doi.org/10.1126/science.adc9202\">https://doi.org/10.1126/science.adc9202</a>","ieee":"J. A. Palacci, “A soft active matter that can climb walls,” <i>Science</i>, vol. 377, no. 6607. American Association for the Advancement of Science, pp. 710–711, 2022.","chicago":"Palacci, Jérémie A. “A Soft Active Matter That Can Climb Walls.” <i>Science</i>. American Association for the Advancement of Science, 2022. <a href=\"https://doi.org/10.1126/science.adc9202\">https://doi.org/10.1126/science.adc9202</a>.","short":"J.A. Palacci, Science 377 (2022) 710–711."},"intvolume":"       377","external_id":{"pmid":["35951689 "]},"status":"public","title":"A soft active matter that can climb walls","day":"12","author":[{"last_name":"Palacci","first_name":"Jérémie A","full_name":"Palacci, Jérémie A","orcid":"0000-0002-7253-9465","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d"}],"article_processing_charge":"No","scopus_import":"1","article_type":"letter_note","publication":"Science","pmid":1,"department":[{"_id":"JePa"}],"publisher":"American Association for the Advancement of Science","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","quality_controlled":"1","doi":"10.1126/science.adc9202","publication_identifier":{"eissn":["1095-9203"],"issn":["0036-8075"]},"language":[{"iso":"eng"}],"issue":"6607"},{"file":[{"file_size":6282703,"content_type":"application/pdf","relation":"main_file","creator":"cchlebak","file_name":"2021_NatComm_Aubret.pdf","success":1,"date_created":"2021-11-15T13:25:52Z","access_level":"open_access","file_id":"10292","date_updated":"2021-11-15T13:25:52Z","checksum":"1c392b12b9b7b615d422d9fabe19cdb9"}],"day":"04","author":[{"last_name":"Aubret","first_name":"Antoine","full_name":"Aubret, Antoine"},{"last_name":"Martinet","first_name":"Quentin","full_name":"Martinet, Quentin","orcid":"0000-0002-2916-6632","id":"b37485a8-d343-11eb-a0e9-df8c484ef8ab"},{"full_name":"Palacci, Jérémie A","orcid":"0000-0002-7253-9465","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","first_name":"Jérémie A","last_name":"Palacci"}],"article_number":"6398","title":"Metamachines of pluripotent colloids","department":[{"_id":"JePa"}],"pmid":1,"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","publisher":"Springer Nature","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"article_type":"original","article_processing_charge":"Yes","scopus_import":"1","publication":"Nature Communications","publication_identifier":{"eissn":["2041-1723"]},"quality_controlled":"1","doi":"10.1038/s41467-021-26699-6","issue":"1","language":[{"iso":"eng"}],"isi":1,"month":"11","type":"journal_article","oa_version":"Published Version","abstract":[{"lang":"eng","text":"Machines enabled the Industrial Revolution and are central to modern technological progress: A machine’s parts transmit forces, motion, and energy to one another in a predetermined manner. Today’s engineering frontier, building artificial micromachines that emulate the biological machinery of living organisms, requires faithful assembly and energy consumption at the microscale. Here, we demonstrate the programmable assembly of active particles into autonomous metamachines using optical templates. Metamachines, or machines made of machines, are stable, mobile and autonomous architectures, whose dynamics stems from the geometry. We use the interplay between anisotropic force generation of the active colloids with the control of their orientation by local geometry. This allows autonomous reprogramming of active particles of the metamachines to achieve multiple functions. It permits the modular assembly of metamachines by fusion, reconfiguration of metamachines and, we anticipate, a shift in focus of self-assembly towards active matter and reprogrammable materials."}],"date_updated":"2023-08-14T11:48:37Z","file_date_updated":"2021-11-15T13:25:52Z","date_created":"2021-11-14T23:01:23Z","volume":12,"year":"2021","acknowledgement":"The authors thank R. Jazzar for useful advice regarding the synthesis of heterodimers. We thank S. Sacanna for critical reading. This material is based upon work supported by the National Science Foundation under Grant No. DMR-1554724 and Department of Army Research under grant W911NF-20-1-0112.","_id":"10280","has_accepted_license":"1","oa":1,"publication_status":"published","ddc":["530"],"date_published":"2021-11-04T00:00:00Z","external_id":{"pmid":["34737315"],"isi":["000714754400010"]},"status":"public","citation":{"short":"A. Aubret, Q. Martinet, J.A. Palacci, Nature Communications 12 (2021).","ieee":"A. Aubret, Q. Martinet, and J. A. Palacci, “Metamachines of pluripotent colloids,” <i>Nature Communications</i>, vol. 12, no. 1. Springer Nature, 2021.","chicago":"Aubret, Antoine, Quentin Martinet, and Jérémie A Palacci. “Metamachines of Pluripotent Colloids.” <i>Nature Communications</i>. Springer Nature, 2021. <a href=\"https://doi.org/10.1038/s41467-021-26699-6\">https://doi.org/10.1038/s41467-021-26699-6</a>.","ista":"Aubret A, Martinet Q, Palacci JA. 2021. Metamachines of pluripotent colloids. Nature Communications. 12(1), 6398.","mla":"Aubret, Antoine, et al. “Metamachines of Pluripotent Colloids.” <i>Nature Communications</i>, vol. 12, no. 1, 6398, Springer Nature, 2021, doi:<a href=\"https://doi.org/10.1038/s41467-021-26699-6\">10.1038/s41467-021-26699-6</a>.","apa":"Aubret, A., Martinet, Q., &#38; Palacci, J. A. (2021). Metamachines of pluripotent colloids. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-021-26699-6\">https://doi.org/10.1038/s41467-021-26699-6</a>","ama":"Aubret A, Martinet Q, Palacci JA. Metamachines of pluripotent colloids. <i>Nature Communications</i>. 2021;12(1). doi:<a href=\"https://doi.org/10.1038/s41467-021-26699-6\">10.1038/s41467-021-26699-6</a>"},"intvolume":"        12"},{"article_type":"original","scopus_import":"1","article_processing_charge":"No","publication":"Soft Matter","pmid":1,"publisher":"Royal Society of Chemistry ","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","title":"Rapid characterization of neutral polymer brush with a conventional zetameter and a variable pinch of salt","day":"07","author":[{"full_name":"Youssef, Mena","first_name":"Mena","last_name":"Youssef"},{"first_name":"Alexandre","last_name":"Morin","full_name":"Morin, Alexandre"},{"full_name":"Aubret, Antoine","first_name":"Antoine","last_name":"Aubret"},{"full_name":"Sacanna, Stefano","first_name":"Stefano","last_name":"Sacanna"},{"id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","orcid":"0000-0002-7253-9465","full_name":"Palacci, Jérémie A","last_name":"Palacci","first_name":"Jérémie A"}],"issue":"17","language":[{"iso":"eng"}],"keyword":["General Chemistry","Condensed Matter Physics"],"quality_controlled":"1","doi":"10.1039/c9sm01850f","publication_identifier":{"issn":["1744-683X"],"eissn":["1744-6848"]},"_id":"9054","year":"2020","date_created":"2021-02-01T13:45:11Z","volume":16,"type":"journal_article","oa_version":"None","month":"05","abstract":[{"lang":"eng","text":"The fundamental and practical importance of particle stabilization has motivated various characterization methods for studying polymer brushes on particle surfaces. In this work, we show how one can perform sensitive measurements of neutral polymer coating on colloidal particles using a commercial zetameter and salt solutions. By systematically varying the Debye length, we study the mobility of the polymer-coated particles in an applied electric field and show that the electrophoretic mobility of polymer-coated particles normalized by the mobility of non-coated particles is entirely controlled by the polymer brush and independent of the native surface charge, here controlled with pH, or the surface–ion interaction. Our result is rationalized with a simple hydrodynamic model, allowing for the estimation of characteristics of the polymer coating: the brush length L, and the Brinkman length ξ, determined by its resistance to flows. We demonstrate that the Debye layer provides a convenient and faithful probe to the characterization of polymer coatings on particles. Because the method simply relies on a conventional zetameter, it is widely accessible and offers a practical tool to rapidly probe neutral polymer brushes, an asset in the development and utilization of polymer-coated colloidal particles."}],"date_updated":"2023-02-23T13:47:45Z","page":"4274-4282","citation":{"chicago":"Youssef, Mena, Alexandre Morin, Antoine Aubret, Stefano Sacanna, and Jérémie A Palacci. “Rapid Characterization of Neutral Polymer Brush with a Conventional Zetameter and a Variable Pinch of Salt.” <i>Soft Matter</i>. Royal Society of Chemistry , 2020. <a href=\"https://doi.org/10.1039/c9sm01850f\">https://doi.org/10.1039/c9sm01850f</a>.","ieee":"M. Youssef, A. Morin, A. Aubret, S. Sacanna, and J. A. Palacci, “Rapid characterization of neutral polymer brush with a conventional zetameter and a variable pinch of salt,” <i>Soft Matter</i>, vol. 16, no. 17. Royal Society of Chemistry , pp. 4274–4282, 2020.","short":"M. Youssef, A. Morin, A. Aubret, S. Sacanna, J.A. Palacci, Soft Matter 16 (2020) 4274–4282.","ama":"Youssef M, Morin A, Aubret A, Sacanna S, Palacci JA. Rapid characterization of neutral polymer brush with a conventional zetameter and a variable pinch of salt. <i>Soft Matter</i>. 2020;16(17):4274-4282. doi:<a href=\"https://doi.org/10.1039/c9sm01850f\">10.1039/c9sm01850f</a>","apa":"Youssef, M., Morin, A., Aubret, A., Sacanna, S., &#38; Palacci, J. A. (2020). Rapid characterization of neutral polymer brush with a conventional zetameter and a variable pinch of salt. <i>Soft Matter</i>. Royal Society of Chemistry . <a href=\"https://doi.org/10.1039/c9sm01850f\">https://doi.org/10.1039/c9sm01850f</a>","mla":"Youssef, Mena, et al. “Rapid Characterization of Neutral Polymer Brush with a Conventional Zetameter and a Variable Pinch of Salt.” <i>Soft Matter</i>, vol. 16, no. 17, Royal Society of Chemistry , 2020, pp. 4274–82, doi:<a href=\"https://doi.org/10.1039/c9sm01850f\">10.1039/c9sm01850f</a>.","ista":"Youssef M, Morin A, Aubret A, Sacanna S, Palacci JA. 2020. Rapid characterization of neutral polymer brush with a conventional zetameter and a variable pinch of salt. Soft Matter. 16(17), 4274–4282."},"intvolume":"        16","extern":"1","status":"public","external_id":{"pmid":["32307507"]},"date_published":"2020-05-07T00:00:00Z","publication_status":"published"},{"_id":"9059","year":"2020","date_created":"2021-02-02T13:30:50Z","volume":580,"oa_version":"None","type":"journal_article","month":"04","abstract":[{"lang":"eng","text":"From rock salt to nanoparticle superlattices, complex structure can emerge from simple building blocks that attract each other through Coulombic forces1-4. On the micrometre scale, however, colloids in water defy the intuitively simple idea of forming crystals from oppositely charged partners, instead forming non-equilibrium structures such as clusters and gels5-7. Although various systems have been engineered to grow binary crystals8-11, native surface charge in aqueous conditions has not been used to assemble crystalline materials. Here we form ionic colloidal crystals in water through an approach that we refer to as polymer-attenuated Coulombic self-assembly. The key to crystallization is the use of a neutral polymer to keep particles separated by well defined distances, allowing us to tune the attractive overlap of electrical double layers, directing particles to disperse, crystallize or become permanently fixed on demand. The nucleation and growth of macroscopic single crystals is demonstrated by using the Debye screening length to fine-tune assembly. Using a variety of colloidal particles and commercial polymers, ionic colloidal crystals isostructural to caesium chloride, sodium chloride, aluminium diboride and K4C60 are selected according to particle size ratios. Once fixed by simply diluting out solution salts, crystals are pulled out of the water for further manipulation, demonstrating an accurate translation from solution-phase assembly to dried solid structures. In contrast to other assembly approaches, in which particles must be carefully engineered to encode binding information12-18, polymer-attenuated Coulombic self-assembly enables conventional colloids to be used as model colloidal ions, primed for crystallization. "}],"date_updated":"2023-02-23T13:47:55Z","page":"487-490","citation":{"ama":"Hueckel T, Hocky GM, Palacci JA, Sacanna S. Ionic solids from common colloids. <i>Nature</i>. 2020;580(7804):487-490. doi:<a href=\"https://doi.org/10.1038/s41586-020-2205-0\">10.1038/s41586-020-2205-0</a>","apa":"Hueckel, T., Hocky, G. M., Palacci, J. A., &#38; Sacanna, S. (2020). Ionic solids from common colloids. <i>Nature</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41586-020-2205-0\">https://doi.org/10.1038/s41586-020-2205-0</a>","mla":"Hueckel, Theodore, et al. “Ionic Solids from Common Colloids.” <i>Nature</i>, vol. 580, no. 7804, Springer Nature, 2020, pp. 487–90, doi:<a href=\"https://doi.org/10.1038/s41586-020-2205-0\">10.1038/s41586-020-2205-0</a>.","ista":"Hueckel T, Hocky GM, Palacci JA, Sacanna S. 2020. Ionic solids from common colloids. Nature. 580(7804), 487–490.","chicago":"Hueckel, Theodore, Glen M. Hocky, Jérémie A Palacci, and Stefano Sacanna. “Ionic Solids from Common Colloids.” <i>Nature</i>. Springer Nature, 2020. <a href=\"https://doi.org/10.1038/s41586-020-2205-0\">https://doi.org/10.1038/s41586-020-2205-0</a>.","ieee":"T. Hueckel, G. M. Hocky, J. A. Palacci, and S. Sacanna, “Ionic solids from common colloids,” <i>Nature</i>, vol. 580, no. 7804. Springer Nature, pp. 487–490, 2020.","short":"T. Hueckel, G.M. Hocky, J.A. Palacci, S. Sacanna, Nature 580 (2020) 487–490."},"intvolume":"       580","extern":"1","status":"public","external_id":{"pmid":["32322078"]},"date_published":"2020-04-23T00:00:00Z","publication_status":"published","article_type":"original","scopus_import":"1","article_processing_charge":"No","publication":"Nature","pmid":1,"user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","publisher":"Springer Nature","title":"Ionic solids from common colloids","day":"23","author":[{"full_name":"Hueckel, Theodore","last_name":"Hueckel","first_name":"Theodore"},{"first_name":"Glen M.","last_name":"Hocky","full_name":"Hocky, Glen M."},{"last_name":"Palacci","first_name":"Jérémie A","full_name":"Palacci, Jérémie A","orcid":"0000-0002-7253-9465","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d"},{"first_name":"Stefano","last_name":"Sacanna","full_name":"Sacanna, Stefano"}],"issue":"7804","language":[{"iso":"eng"}],"keyword":["Multidisciplinary"],"quality_controlled":"1","doi":"10.1038/s41586-020-2205-0","publication_identifier":{"issn":["0028-0836"],"eissn":["1476-4687"]}},{"day":"14","file":[{"file_name":"2020_PhysRevFluids_Gandhi.pdf","success":1,"creator":"cziletti","file_size":730504,"content_type":"application/pdf","relation":"main_file","checksum":"dfecfadbd79fd760fb4db20d1e667f17","file_id":"9163","date_updated":"2021-02-18T14:12:24Z","access_level":"open_access","date_created":"2021-02-18T14:12:24Z"}],"author":[{"full_name":"Gandhi, Tanvi","first_name":"Tanvi","last_name":"Gandhi"},{"full_name":"Mac Huang, Jinzi","first_name":"Jinzi","last_name":"Mac Huang"},{"first_name":"Antoine","last_name":"Aubret","full_name":"Aubret, Antoine"},{"last_name":"Li","first_name":"Yaocheng","full_name":"Li, Yaocheng"},{"first_name":"Sophie","last_name":"Ramananarivo","full_name":"Ramananarivo, Sophie"},{"last_name":"Vergassola","first_name":"Massimo","full_name":"Vergassola, Massimo"},{"first_name":"Jérémie A","last_name":"Palacci","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","orcid":"0000-0002-7253-9465","full_name":"Palacci, Jérémie A"}],"title":"Decision-making at a T-junction by gradient-sensing microscopic agents","article_number":"104202","publisher":"American Physical Society","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","article_processing_charge":"No","scopus_import":"1","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"article_type":"original","publication":"Physical Review Fluids","publication_identifier":{"issn":["2469-990X"]},"quality_controlled":"1","doi":"10.1103/physrevfluids.5.104202","language":[{"iso":"eng"}],"issue":"10","abstract":[{"text":"Active navigation relies on effectively extracting information from the surrounding environment, and often features the tracking of gradients of a relevant signal—such as the concentration of molecules. Microfluidic networks of closed pathways pose the challenge of determining the shortest exit pathway, which involves the proper local decision-making at each bifurcating junction. Here, we focus on the basic decision faced at a T-junction by a microscopic particle, which orients among possible paths via its sensing of a diffusible substance's concentration. We study experimentally the navigation of colloidal particles following concentration gradients by diffusiophoresis. We treat the situation as a mean first passage time (MFPT) problem that unveils the important role of a separatrix in the concentration field to determine the statistics of path taking. Further, we use numerical experiments to study different strategies, including biomimetic ones such as run and tumble or Markovian chemotactic migration. The discontinuity in the MFPT at the junction makes it remarkably difficult for microscopic agents to follow the shortest path, irrespective of adopted navigation strategy. In contrast, increasing the size of the sensing agents improves the efficiency of short-path taking by harvesting information on a larger scale. It inspires the development of a run-and-whirl dynamics that takes advantage of the mathematical properties of harmonic functions to emulate particles beyond their own size.","lang":"eng"}],"date_updated":"2023-02-23T13:50:55Z","month":"10","oa_version":"Published Version","type":"journal_article","file_date_updated":"2021-02-18T14:12:24Z","date_created":"2021-02-18T14:07:16Z","volume":5,"year":"2020","_id":"9162","has_accepted_license":"1","oa":1,"publication_status":"published","ddc":["530"],"date_published":"2020-10-14T00:00:00Z","status":"public","citation":{"ama":"Gandhi T, Mac Huang J, Aubret A, et al. Decision-making at a T-junction by gradient-sensing microscopic agents. <i>Physical Review Fluids</i>. 2020;5(10). doi:<a href=\"https://doi.org/10.1103/physrevfluids.5.104202\">10.1103/physrevfluids.5.104202</a>","apa":"Gandhi, T., Mac Huang, J., Aubret, A., Li, Y., Ramananarivo, S., Vergassola, M., &#38; Palacci, J. A. (2020). Decision-making at a T-junction by gradient-sensing microscopic agents. <i>Physical Review Fluids</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevfluids.5.104202\">https://doi.org/10.1103/physrevfluids.5.104202</a>","mla":"Gandhi, Tanvi, et al. “Decision-Making at a T-Junction by Gradient-Sensing Microscopic Agents.” <i>Physical Review Fluids</i>, vol. 5, no. 10, 104202, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/physrevfluids.5.104202\">10.1103/physrevfluids.5.104202</a>.","ista":"Gandhi T, Mac Huang J, Aubret A, Li Y, Ramananarivo S, Vergassola M, Palacci JA. 2020. Decision-making at a T-junction by gradient-sensing microscopic agents. Physical Review Fluids. 5(10), 104202.","chicago":"Gandhi, Tanvi, Jinzi Mac Huang, Antoine Aubret, Yaocheng Li, Sophie Ramananarivo, Massimo Vergassola, and Jérémie A Palacci. “Decision-Making at a T-Junction by Gradient-Sensing Microscopic Agents.” <i>Physical Review Fluids</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/physrevfluids.5.104202\">https://doi.org/10.1103/physrevfluids.5.104202</a>.","ieee":"T. Gandhi <i>et al.</i>, “Decision-making at a T-junction by gradient-sensing microscopic agents,” <i>Physical Review Fluids</i>, vol. 5, no. 10. American Physical Society, 2020.","short":"T. Gandhi, J. Mac Huang, A. Aubret, Y. Li, S. Ramananarivo, M. Vergassola, J.A. Palacci, Physical Review Fluids 5 (2020)."},"intvolume":"         5","extern":"1"},{"month":"06","type":"journal_article","oa_version":"Published Version","date_updated":"2021-02-18T14:57:39Z","volume":22,"file_date_updated":"2021-02-18T14:53:33Z","date_created":"2021-02-18T14:17:32Z","year":"2020","_id":"9164","publication_status":"published","oa":1,"has_accepted_license":"1","ddc":["530"],"date_published":"2020-06-01T00:00:00Z","status":"public","extern":"1","intvolume":"        22","citation":{"short":"T. Speck, J. Tailleur, J.A. Palacci, New Journal of Physics 22 (2020).","ieee":"T. Speck, J. Tailleur, and J. A. Palacci, “Focus on active colloids and nanoparticles,” <i>New Journal of Physics</i>, vol. 22, no. 6. IOP Publishing, 2020.","chicago":"Speck, Thomas, Julien Tailleur, and Jérémie A Palacci. “Focus on Active Colloids and Nanoparticles.” <i>New Journal of Physics</i>. IOP Publishing, 2020. <a href=\"https://doi.org/10.1088/1367-2630/ab90d9\">https://doi.org/10.1088/1367-2630/ab90d9</a>.","mla":"Speck, Thomas, et al. “Focus on Active Colloids and Nanoparticles.” <i>New Journal of Physics</i>, vol. 22, no. 6, 060201, IOP Publishing, 2020, doi:<a href=\"https://doi.org/10.1088/1367-2630/ab90d9\">10.1088/1367-2630/ab90d9</a>.","ista":"Speck T, Tailleur J, Palacci JA. 2020. Focus on active colloids and nanoparticles. New Journal of Physics. 22(6), 060201.","apa":"Speck, T., Tailleur, J., &#38; Palacci, J. A. (2020). Focus on active colloids and nanoparticles. <i>New Journal of Physics</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/1367-2630/ab90d9\">https://doi.org/10.1088/1367-2630/ab90d9</a>","ama":"Speck T, Tailleur J, Palacci JA. Focus on active colloids and nanoparticles. <i>New Journal of Physics</i>. 2020;22(6). doi:<a href=\"https://doi.org/10.1088/1367-2630/ab90d9\">10.1088/1367-2630/ab90d9</a>"},"author":[{"last_name":"Speck","first_name":"Thomas","full_name":"Speck, Thomas"},{"last_name":"Tailleur","first_name":"Julien","full_name":"Tailleur, Julien"},{"full_name":"Palacci, Jérémie A","orcid":"0000-0002-7253-9465","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","first_name":"Jérémie A","last_name":"Palacci"}],"file":[{"creator":"cziletti","content_type":"application/pdf","relation":"main_file","file_size":953338,"success":1,"file_name":"2020_NewJournPhys_Speck.pdf","access_level":"open_access","date_created":"2021-02-18T14:53:33Z","checksum":"02759f3ab228c1a061e747155a20f851","date_updated":"2021-02-18T14:53:33Z","file_id":"9169"}],"day":"01","article_number":"060201","title":"Focus on active colloids and nanoparticles","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","publisher":"IOP Publishing","publication":"New Journal of Physics","article_type":"letter_note","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"article_processing_charge":"No","scopus_import":"1","publication_identifier":{"issn":["1367-2630"]},"doi":"10.1088/1367-2630/ab90d9","quality_controlled":"1","keyword":["General Physics and Astronomy"],"issue":"6","language":[{"iso":"eng"}]},{"date_updated":"2023-02-23T13:47:59Z","abstract":[{"text":"Molecular motors are essential to the living, generating fluctuations that boost transport and assist assembly. Active colloids, that consume energy to move, hold similar potential for man-made materials controlled by forces generated from within. Yet, their use as a powerhouse in materials science lacks. Here we show a massive acceleration of the annealing of a monolayer of passive beads by moderate addition of self-propelled microparticles. We rationalize our observations with a model of collisions that drive active fluctuations and activate the annealing. The experiment is quantitatively compared with Brownian dynamic simulations that further unveil a dynamical transition in the mechanism of annealing. Active dopants travel uniformly in the system or co-localize at the grain boundaries as a result of the persistence of their motion. Our findings uncover the potential of internal activity to control materials and lay the groundwork for the rise of materials science beyond equilibrium.","lang":"eng"}],"month":"07","type":"journal_article","oa_version":"Published Version","date_created":"2021-02-02T13:43:36Z","file_date_updated":"2021-02-02T13:47:21Z","volume":10,"year":"2019","_id":"9060","has_accepted_license":"1","oa":1,"publication_status":"published","date_published":"2019-07-29T00:00:00Z","ddc":["530"],"external_id":{"pmid":["31358762"],"arxiv":["1909.07382"]},"status":"public","citation":{"short":"S. Ramananarivo, E. Ducrot, J.A. Palacci, Nature Communications 10 (2019).","chicago":"Ramananarivo, Sophie, Etienne Ducrot, and Jérémie A Palacci. “Activity-Controlled Annealing of Colloidal Monolayers.” <i>Nature Communications</i>. Springer Nature, 2019. <a href=\"https://doi.org/10.1038/s41467-019-11362-y\">https://doi.org/10.1038/s41467-019-11362-y</a>.","ieee":"S. Ramananarivo, E. Ducrot, and J. A. Palacci, “Activity-controlled annealing of colloidal monolayers,” <i>Nature Communications</i>, vol. 10, no. 1. Springer Nature, 2019.","apa":"Ramananarivo, S., Ducrot, E., &#38; Palacci, J. A. (2019). Activity-controlled annealing of colloidal monolayers. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-019-11362-y\">https://doi.org/10.1038/s41467-019-11362-y</a>","mla":"Ramananarivo, Sophie, et al. “Activity-Controlled Annealing of Colloidal Monolayers.” <i>Nature Communications</i>, vol. 10, no. 1, 3380, Springer Nature, 2019, doi:<a href=\"https://doi.org/10.1038/s41467-019-11362-y\">10.1038/s41467-019-11362-y</a>.","ista":"Ramananarivo S, Ducrot E, Palacci JA. 2019. Activity-controlled annealing of colloidal monolayers. Nature Communications. 10(1), 3380.","ama":"Ramananarivo S, Ducrot E, Palacci JA. Activity-controlled annealing of colloidal monolayers. <i>Nature Communications</i>. 2019;10(1). doi:<a href=\"https://doi.org/10.1038/s41467-019-11362-y\">10.1038/s41467-019-11362-y</a>"},"intvolume":"        10","extern":"1","file":[{"checksum":"70c6e5d6fbea0932b0669505ab6633ec","file_id":"9061","date_updated":"2021-02-02T13:47:21Z","access_level":"open_access","date_created":"2021-02-02T13:47:21Z","file_name":"2019_NatureComm_Ramananarivo.pdf","success":1,"creator":"cziletti","file_size":2820337,"content_type":"application/pdf","relation":"main_file"}],"day":"29","author":[{"full_name":"Ramananarivo, Sophie","last_name":"Ramananarivo","first_name":"Sophie"},{"full_name":"Ducrot, Etienne","last_name":"Ducrot","first_name":"Etienne"},{"first_name":"Jérémie A","last_name":"Palacci","full_name":"Palacci, Jérémie A","orcid":"0000-0002-7253-9465","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d"}],"title":"Activity-controlled annealing of colloidal monolayers","arxiv":1,"article_number":"3380","pmid":1,"publisher":"Springer Nature","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","article_processing_charge":"No","scopus_import":"1","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"article_type":"original","publication":"Nature Communications","publication_identifier":{"issn":["2041-1723"]},"quality_controlled":"1","doi":"10.1038/s41467-019-11362-y","language":[{"iso":"eng"}],"issue":"1","keyword":["General Biochemistry","Genetics and Molecular Biology","General Physics and Astronomy","General Chemistry"]},{"external_id":{"arxiv":["1909.11121"],"pmid":["30456407"]},"status":"public","citation":{"ista":"Aubret A, Palacci JA. 2018. Diffusiophoretic design of self-spinning microgears from colloidal microswimmers. Soft Matter. 14(47), 9577–9588.","mla":"Aubret, Antoine, and Jérémie A. Palacci. “Diffusiophoretic Design of Self-Spinning Microgears from Colloidal Microswimmers.” <i>Soft Matter</i>, vol. 14, no. 47, Royal Society of Chemistry , 2018, pp. 9577–88, doi:<a href=\"https://doi.org/10.1039/c8sm01760c\">10.1039/c8sm01760c</a>.","apa":"Aubret, A., &#38; Palacci, J. A. (2018). Diffusiophoretic design of self-spinning microgears from colloidal microswimmers. <i>Soft Matter</i>. Royal Society of Chemistry . <a href=\"https://doi.org/10.1039/c8sm01760c\">https://doi.org/10.1039/c8sm01760c</a>","ama":"Aubret A, Palacci JA. Diffusiophoretic design of self-spinning microgears from colloidal microswimmers. <i>Soft Matter</i>. 2018;14(47):9577-9588. doi:<a href=\"https://doi.org/10.1039/c8sm01760c\">10.1039/c8sm01760c</a>","short":"A. Aubret, J.A. Palacci, Soft Matter 14 (2018) 9577–9588.","ieee":"A. Aubret and J. A. Palacci, “Diffusiophoretic design of self-spinning microgears from colloidal microswimmers,” <i>Soft Matter</i>, vol. 14, no. 47. Royal Society of Chemistry , pp. 9577–9588, 2018.","chicago":"Aubret, Antoine, and Jérémie A Palacci. “Diffusiophoretic Design of Self-Spinning Microgears from Colloidal Microswimmers.” <i>Soft Matter</i>. Royal Society of Chemistry , 2018. <a href=\"https://doi.org/10.1039/c8sm01760c\">https://doi.org/10.1039/c8sm01760c</a>."},"intvolume":"        14","extern":"1","publication_status":"published","oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1909.11121"}],"date_published":"2018-12-21T00:00:00Z","year":"2018","_id":"9053","type":"journal_article","month":"12","oa_version":"Preprint","date_updated":"2023-02-23T13:47:43Z","abstract":[{"text":"The development of strategies to assemble microscopic machines from dissipative building blocks are essential on the route to novel active materials. We recently demonstrated the hierarchical self-assembly of phoretic microswimmers into self-spinning microgears and their synchronization by diffusiophoretic interactions [Aubret et al., Nat. Phys., 2018]. In this paper, we adopt a pedagogical approach and expose our strategy to control self-assembly and build machines using phoretic phenomena. We notably introduce Highly Inclined Laminated Optical sheets microscopy (HILO) to image and characterize anisotropic and dynamic diffusiophoretic interactions, which cannot be performed by conventional fluorescence microscopy. The dynamics of a (haematite) photocatalytic material immersed in (hydrogen peroxide) fuel under various illumination patterns is first described and quantitatively rationalized by a model of diffusiophoresis, the migration of a colloidal particle in a concentration gradient. It is further exploited to design phototactic microswimmers that direct towards the high intensity of light, as a result of the reorientation of the haematite in a light gradient. We finally show the assembly of self-spinning microgears from colloidal microswimmers and carefully characterize the interactions using HILO techniques. The results are compared with analytical and numerical predictions and agree quantitatively, stressing the important role played by concentration gradients induced by chemical activity to control and design interactions. Because the approach described hereby is generic, this works paves the way for the rational design of machines by controlling phoretic phenomena.","lang":"eng"}],"page":"9577-9588","date_created":"2021-02-01T13:44:41Z","volume":14,"issue":"47","language":[{"iso":"eng"}],"keyword":["General Chemistry","Condensed Matter Physics"],"publication_identifier":{"eissn":["1744-6848"],"issn":["1744-683X"]},"quality_controlled":"1","doi":"10.1039/c8sm01760c","pmid":1,"user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","publisher":"Royal Society of Chemistry ","article_type":"original","article_processing_charge":"No","scopus_import":"1","publication":"Soft Matter","day":"21","author":[{"full_name":"Aubret, Antoine","first_name":"Antoine","last_name":"Aubret"},{"full_name":"Palacci, Jérémie A","orcid":"0000-0002-7253-9465","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","last_name":"Palacci","first_name":"Jérémie A"}],"title":"Diffusiophoretic design of self-spinning microgears from colloidal microswimmers","arxiv":1},{"citation":{"short":"A. Aubret, M. Youssef, S. Sacanna, J.A. Palacci, Nature Physics 14 (2018) 1114–1118.","ieee":"A. Aubret, M. Youssef, S. Sacanna, and J. A. Palacci, “Targeted assembly and synchronization of self-spinning microgears,” <i>Nature Physics</i>, vol. 14, no. 11. Springer Nature, pp. 1114–1118, 2018.","chicago":"Aubret, Antoine, Mena Youssef, Stefano Sacanna, and Jérémie A Palacci. “Targeted Assembly and Synchronization of Self-Spinning Microgears.” <i>Nature Physics</i>. Springer Nature, 2018. <a href=\"https://doi.org/10.1038/s41567-018-0227-4\">https://doi.org/10.1038/s41567-018-0227-4</a>.","ista":"Aubret A, Youssef M, Sacanna S, Palacci JA. 2018. Targeted assembly and synchronization of self-spinning microgears. Nature Physics. 14(11), 1114–1118.","mla":"Aubret, Antoine, et al. “Targeted Assembly and Synchronization of Self-Spinning Microgears.” <i>Nature Physics</i>, vol. 14, no. 11, Springer Nature, 2018, pp. 1114–18, doi:<a href=\"https://doi.org/10.1038/s41567-018-0227-4\">10.1038/s41567-018-0227-4</a>.","apa":"Aubret, A., Youssef, M., Sacanna, S., &#38; Palacci, J. A. (2018). Targeted assembly and synchronization of self-spinning microgears. <i>Nature Physics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41567-018-0227-4\">https://doi.org/10.1038/s41567-018-0227-4</a>","ama":"Aubret A, Youssef M, Sacanna S, Palacci JA. Targeted assembly and synchronization of self-spinning microgears. <i>Nature Physics</i>. 2018;14(11):1114-1118. doi:<a href=\"https://doi.org/10.1038/s41567-018-0227-4\">10.1038/s41567-018-0227-4</a>"},"intvolume":"        14","extern":"1","external_id":{"arxiv":["1810.01033"]},"status":"public","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1810.01033"}],"date_published":"2018-11-01T00:00:00Z","oa":1,"publication_status":"published","_id":"9062","year":"2018","date_created":"2021-02-02T13:52:49Z","volume":14,"date_updated":"2023-02-23T13:48:02Z","abstract":[{"lang":"eng","text":"Self-assembly is the autonomous organization of components into patterns or structures: an essential ingredient of biology and a desired route to complex organization1. At equilibrium, the structure is encoded through specific interactions2,3,4,5,6,7,8, at an unfavourable entropic cost for the system. An alternative approach, widely used by nature, uses energy input to bypass the entropy bottleneck and develop features otherwise impossible at equilibrium9. Dissipative building blocks that inject energy locally were made available by recent advances in colloidal science10,11 but have not been used to control self-assembly. Here we show the targeted formation of self-powered microgears from active particles and their autonomous synchronization into dynamical superstructures. We use a photoactive component that consumes fuel, haematite, to devise phototactic microswimmers that form self-spinning microgears following spatiotemporal light patterns. The gears are coupled via their chemical clouds by diffusiophoresis12 and constitute the elementary bricks of synchronized superstructures, which autonomously regulate their dynamics. The results are quantitatively rationalized on the basis of a stochastic description of diffusio-phoretic oscillators dynamically coupled by chemical gradients. Our findings harness non-equilibrium phoretic phenomena to program interactions and direct self-assembly with fidelity and specificity. It lays the groundwork for the autonomous construction of dynamical architectures and functional micro-machinery."}],"oa_version":"Preprint","type":"journal_article","month":"11","page":"1114-1118","language":[{"iso":"eng"}],"issue":"11","quality_controlled":"1","doi":"10.1038/s41567-018-0227-4","publication_identifier":{"issn":["1745-2473"],"eissn":["1745-2481"]},"scopus_import":"1","article_processing_charge":"No","article_type":"original","publication":"Nature Physics","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","publisher":"Springer Nature","title":"Targeted assembly and synchronization of self-spinning microgears","arxiv":1,"day":"01","author":[{"last_name":"Aubret","first_name":"Antoine","full_name":"Aubret, Antoine"},{"full_name":"Youssef, Mena","last_name":"Youssef","first_name":"Mena"},{"first_name":"Stefano","last_name":"Sacanna","full_name":"Sacanna, Stefano"},{"full_name":"Palacci, Jérémie A","orcid":"0000-0002-7253-9465","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","last_name":"Palacci","first_name":"Jérémie A"}]},{"publication_status":"published","publication_identifier":{"issn":["1359-0294"]},"date_published":"2017-07-01T00:00:00Z","doi":"10.1016/j.cocis.2017.05.007","quality_controlled":"1","status":"public","intvolume":"        30","extern":"1","language":[{"iso":"eng"}],"citation":{"chicago":"Aubret, A., S. Ramananarivo, and Jérémie A Palacci. “Eppur Si Muove, and yet It Moves: Patchy (Phoretic) Swimmers.” <i>Current Opinion in Colloid &#38; Interface Science</i>. Elsevier, 2017. <a href=\"https://doi.org/10.1016/j.cocis.2017.05.007\">https://doi.org/10.1016/j.cocis.2017.05.007</a>.","ieee":"A. Aubret, S. Ramananarivo, and J. A. Palacci, “Eppur si muove, and yet it moves: Patchy (phoretic) swimmers,” <i>Current Opinion in Colloid &#38; Interface Science</i>, vol. 30. Elsevier, pp. 81–89, 2017.","short":"A. Aubret, S. Ramananarivo, J.A. Palacci, Current Opinion in Colloid &#38; Interface Science 30 (2017) 81–89.","ama":"Aubret A, Ramananarivo S, Palacci JA. Eppur si muove, and yet it moves: Patchy (phoretic) swimmers. <i>Current Opinion in Colloid &#38; Interface Science</i>. 2017;30:81-89. doi:<a href=\"https://doi.org/10.1016/j.cocis.2017.05.007\">10.1016/j.cocis.2017.05.007</a>","apa":"Aubret, A., Ramananarivo, S., &#38; Palacci, J. A. (2017). Eppur si muove, and yet it moves: Patchy (phoretic) swimmers. <i>Current Opinion in Colloid &#38; Interface Science</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.cocis.2017.05.007\">https://doi.org/10.1016/j.cocis.2017.05.007</a>","ista":"Aubret A, Ramananarivo S, Palacci JA. 2017. Eppur si muove, and yet it moves: Patchy (phoretic) swimmers. Current Opinion in Colloid &#38; Interface Science. 30, 81–89.","mla":"Aubret, A., et al. “Eppur Si Muove, and yet It Moves: Patchy (Phoretic) Swimmers.” <i>Current Opinion in Colloid &#38; Interface Science</i>, vol. 30, Elsevier, 2017, pp. 81–89, doi:<a href=\"https://doi.org/10.1016/j.cocis.2017.05.007\">10.1016/j.cocis.2017.05.007</a>."},"page":"81-89","author":[{"full_name":"Aubret, A.","last_name":"Aubret","first_name":"A."},{"first_name":"S.","last_name":"Ramananarivo","full_name":"Ramananarivo, S."},{"full_name":"Palacci, Jérémie A","orcid":"0000-0002-7253-9465","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","last_name":"Palacci","first_name":"Jérémie A"}],"abstract":[{"lang":"eng","text":"Advances in colloidal synthesis allow for the design of particles with controlled patches. This article reviews routes towards colloidal locomotion, where energy is consumed and converted into motion, and its implementation with active patchy particles. A special emphasis is given to phoretic swimmers, where the self-propulsion originates from an interfacial phenomenon, raising experimental challenges and opening up opportunities for particles with controlled anisotropic surface chemistry and novel behaviors."}],"date_updated":"2021-02-22T09:32:11Z","day":"01","oa_version":"None","type":"journal_article","month":"07","volume":30,"title":"Eppur si muove, and yet it moves: Patchy (phoretic) swimmers","date_created":"2021-02-18T14:29:42Z","publisher":"Elsevier","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","year":"2017","publication":"Current Opinion in Colloid & Interface Science","_id":"9165","article_processing_charge":"No","scopus_import":"1","article_type":"original"},{"publication_identifier":{"issn":["1744-683X"],"eissn":["1744-6848"]},"quality_controlled":"1","doi":"10.1039/c5sm03127c","issue":"20","language":[{"iso":"eng"}],"day":"28","author":[{"first_name":"Megan S.","last_name":"Davies Wykes","full_name":"Davies Wykes, Megan S."},{"full_name":"Palacci, Jérémie A","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","orcid":"0000-0002-7253-9465","last_name":"Palacci","first_name":"Jérémie A"},{"full_name":"Adachi, Takuji","last_name":"Adachi","first_name":"Takuji"},{"full_name":"Ristroph, Leif","first_name":"Leif","last_name":"Ristroph"},{"first_name":"Xiao","last_name":"Zhong","full_name":"Zhong, Xiao"},{"full_name":"Ward, Michael D.","first_name":"Michael D.","last_name":"Ward"},{"full_name":"Zhang, Jun","last_name":"Zhang","first_name":"Jun"},{"full_name":"Shelley, Michael J.","last_name":"Shelley","first_name":"Michael J."}],"title":"Dynamic self-assembly of microscale rotors and swimmers","arxiv":1,"pmid":1,"user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","publisher":"Royal Society of Chemistry","article_type":"original","article_processing_charge":"No","scopus_import":"1","publication":"Soft Matter","oa":1,"publication_status":"published","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1509.06330"}],"date_published":"2016-05-28T00:00:00Z","external_id":{"arxiv":["1509.06330"],"pmid":["27121100"]},"status":"public","citation":{"ama":"Davies Wykes MS, Palacci JA, Adachi T, et al. Dynamic self-assembly of microscale rotors and swimmers. <i>Soft Matter</i>. 2016;12(20):4584-4589. doi:<a href=\"https://doi.org/10.1039/c5sm03127c\">10.1039/c5sm03127c</a>","apa":"Davies Wykes, M. S., Palacci, J. A., Adachi, T., Ristroph, L., Zhong, X., Ward, M. D., … Shelley, M. J. (2016). Dynamic self-assembly of microscale rotors and swimmers. <i>Soft Matter</i>. Royal Society of Chemistry. <a href=\"https://doi.org/10.1039/c5sm03127c\">https://doi.org/10.1039/c5sm03127c</a>","ista":"Davies Wykes MS, Palacci JA, Adachi T, Ristroph L, Zhong X, Ward MD, Zhang J, Shelley MJ. 2016. Dynamic self-assembly of microscale rotors and swimmers. Soft Matter. 12(20), 4584–4589.","mla":"Davies Wykes, Megan S., et al. “Dynamic Self-Assembly of Microscale Rotors and Swimmers.” <i>Soft Matter</i>, vol. 12, no. 20, Royal Society of Chemistry, 2016, pp. 4584–89, doi:<a href=\"https://doi.org/10.1039/c5sm03127c\">10.1039/c5sm03127c</a>.","chicago":"Davies Wykes, Megan S., Jérémie A Palacci, Takuji Adachi, Leif Ristroph, Xiao Zhong, Michael D. Ward, Jun Zhang, and Michael J. Shelley. “Dynamic Self-Assembly of Microscale Rotors and Swimmers.” <i>Soft Matter</i>. Royal Society of Chemistry, 2016. <a href=\"https://doi.org/10.1039/c5sm03127c\">https://doi.org/10.1039/c5sm03127c</a>.","ieee":"M. S. Davies Wykes <i>et al.</i>, “Dynamic self-assembly of microscale rotors and swimmers,” <i>Soft Matter</i>, vol. 12, no. 20. Royal Society of Chemistry, pp. 4584–4589, 2016.","short":"M.S. Davies Wykes, J.A. Palacci, T. Adachi, L. Ristroph, X. Zhong, M.D. Ward, J. Zhang, M.J. Shelley, Soft Matter 12 (2016) 4584–4589."},"extern":"1","intvolume":"        12","month":"05","oa_version":"Preprint","type":"journal_article","date_updated":"2023-02-23T13:47:38Z","abstract":[{"text":"Biological systems often involve the self-assembly of basic components into complex and functioning structures. Artificial systems that mimic such processes can provide a well-controlled setting to explore the principles involved and also synthesize useful micromachines. Our experiments show that immotile, but active, components self-assemble into two types of structure that exhibit the fundamental forms of motility: translation and rotation. Specifically, micron-scale metallic rods are designed to induce extensile surface flows in the presence of a chemical fuel; these rods interact with each other and pair up to form either a swimmer or a rotor. Such pairs can transition reversibly between these two configurations, leading to kinetics reminiscent of bacterial run-and-tumble motion.","lang":"eng"}],"page":"4584-4589","date_created":"2021-02-01T13:44:00Z","volume":12,"year":"2016","_id":"9051"},{"author":[{"full_name":"Moyses, Henrique","last_name":"Moyses","first_name":"Henrique"},{"full_name":"Palacci, Jérémie A","orcid":"0000-0002-7253-9465","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","first_name":"Jérémie A","last_name":"Palacci"},{"last_name":"Sacanna","first_name":"Stefano","full_name":"Sacanna, Stefano"},{"full_name":"Grier, David G.","first_name":"David G.","last_name":"Grier"}],"day":"14","title":"Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam","arxiv":1,"publisher":"Royal Society of Chemistry ","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","pmid":1,"publication":"Soft Matter","article_processing_charge":"No","scopus_import":"1","article_type":"original","publication_identifier":{"issn":["1744-683X"],"eissn":["1744-6848"]},"doi":"10.1039/c6sm01163b","quality_controlled":"1","keyword":["General Chemistry","Condensed Matter Physics"],"language":[{"iso":"eng"}],"issue":"30","page":"6357-6364","date_updated":"2023-02-23T13:47:40Z","abstract":[{"text":"We describe colloidal Janus particles with metallic and dielectric faces that swim vigorously when illuminated by defocused optical tweezers without consuming any chemical fuel. Rather than wandering randomly, these optically-activated colloidal swimmers circulate back and forth through the beam of light, tracing out sinuous rosette patterns. We propose a model for this mode of light-activated transport that accounts for the observed behavior through a combination of self-thermophoresis and optically-induced torque. In the deterministic limit, this model yields trajectories that resemble rosette curves known as hypotrochoids.","lang":"eng"}],"type":"journal_article","oa_version":"Preprint","month":"08","volume":12,"date_created":"2021-02-01T13:44:15Z","year":"2016","_id":"9052","publication_status":"published","oa":1,"date_published":"2016-08-14T00:00:00Z","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1609.01497"}],"external_id":{"pmid":["27338294"],"arxiv":["1609.01497"]},"status":"public","intvolume":"        12","extern":"1","citation":{"ama":"Moyses H, Palacci JA, Sacanna S, Grier DG. Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam. <i>Soft Matter</i>. 2016;12(30):6357-6364. doi:<a href=\"https://doi.org/10.1039/c6sm01163b\">10.1039/c6sm01163b</a>","ista":"Moyses H, Palacci JA, Sacanna S, Grier DG. 2016. Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam. Soft Matter. 12(30), 6357–6364.","mla":"Moyses, Henrique, et al. “Trochoidal Trajectories of Self-Propelled Janus Particles in a Diverging Laser Beam.” <i>Soft Matter</i>, vol. 12, no. 30, Royal Society of Chemistry , 2016, pp. 6357–64, doi:<a href=\"https://doi.org/10.1039/c6sm01163b\">10.1039/c6sm01163b</a>.","apa":"Moyses, H., Palacci, J. A., Sacanna, S., &#38; Grier, D. G. (2016). Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam. <i>Soft Matter</i>. Royal Society of Chemistry . <a href=\"https://doi.org/10.1039/c6sm01163b\">https://doi.org/10.1039/c6sm01163b</a>","ieee":"H. Moyses, J. A. Palacci, S. Sacanna, and D. G. Grier, “Trochoidal trajectories of self-propelled Janus particles in a diverging laser beam,” <i>Soft Matter</i>, vol. 12, no. 30. Royal Society of Chemistry , pp. 6357–6364, 2016.","chicago":"Moyses, Henrique, Jérémie A Palacci, Stefano Sacanna, and David G. Grier. “Trochoidal Trajectories of Self-Propelled Janus Particles in a Diverging Laser Beam.” <i>Soft Matter</i>. Royal Society of Chemistry , 2016. <a href=\"https://doi.org/10.1039/c6sm01163b\">https://doi.org/10.1039/c6sm01163b</a>.","short":"H. Moyses, J.A. Palacci, S. Sacanna, D.G. Grier, Soft Matter 12 (2016) 6357–6364."}},{"issue":"4","language":[{"iso":"eng"}],"publication_identifier":{"issn":["2375-2548"]},"doi":"10.1126/sciadv.1400214","quality_controlled":"1","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","publisher":"American Association for the Advancement of Science ","pmid":1,"publication":"Science Advances","tmp":{"name":"Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)","short":"CC BY-NC (4.0)","image":"/images/cc_by_nc.png","legal_code_url":"https://creativecommons.org/licenses/by-nc/4.0/legalcode"},"article_type":"original","scopus_import":"1","article_processing_charge":"No","author":[{"first_name":"Jérémie A","last_name":"Palacci","full_name":"Palacci, Jérémie A","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","orcid":"0000-0002-7253-9465"},{"last_name":"Sacanna","first_name":"Stefano","full_name":"Sacanna, Stefano"},{"first_name":"Anaïs","last_name":"Abramian","full_name":"Abramian, Anaïs"},{"last_name":"Barral","first_name":"Jérémie","full_name":"Barral, Jérémie"},{"first_name":"Kasey","last_name":"Hanson","full_name":"Hanson, Kasey"},{"first_name":"Alexander Y.","last_name":"Grosberg","full_name":"Grosberg, Alexander Y."},{"full_name":"Pine, David J.","first_name":"David J.","last_name":"Pine"},{"last_name":"Chaikin","first_name":"Paul M.","full_name":"Chaikin, Paul M."}],"file":[{"creator":"cziletti","file_size":2416780,"content_type":"application/pdf","relation":"main_file","file_name":"2015_ScienceAdvances_Palacci.pdf","success":1,"access_level":"open_access","date_created":"2021-02-02T13:22:19Z","checksum":"b97d62433581875c1b85210c5f6ae370","file_id":"9058","date_updated":"2021-02-02T13:22:19Z"}],"day":"01","article_number":"e1400214","arxiv":1,"title":"Artificial rheotaxis","status":"public","external_id":{"pmid":["26601175"],"arxiv":["1505.05111"]},"intvolume":"         1","extern":"1","citation":{"ama":"Palacci JA, Sacanna S, Abramian A, et al. Artificial rheotaxis. <i>Science Advances</i>. 2015;1(4). doi:<a href=\"https://doi.org/10.1126/sciadv.1400214\">10.1126/sciadv.1400214</a>","ista":"Palacci JA, Sacanna S, Abramian A, Barral J, Hanson K, Grosberg AY, Pine DJ, Chaikin PM. 2015. Artificial rheotaxis. Science Advances. 1(4), e1400214.","mla":"Palacci, Jérémie A., et al. “Artificial Rheotaxis.” <i>Science Advances</i>, vol. 1, no. 4, e1400214, American Association for the Advancement of Science , 2015, doi:<a href=\"https://doi.org/10.1126/sciadv.1400214\">10.1126/sciadv.1400214</a>.","apa":"Palacci, J. A., Sacanna, S., Abramian, A., Barral, J., Hanson, K., Grosberg, A. Y., … Chaikin, P. M. (2015). Artificial rheotaxis. <i>Science Advances</i>. American Association for the Advancement of Science . <a href=\"https://doi.org/10.1126/sciadv.1400214\">https://doi.org/10.1126/sciadv.1400214</a>","ieee":"J. A. Palacci <i>et al.</i>, “Artificial rheotaxis,” <i>Science Advances</i>, vol. 1, no. 4. American Association for the Advancement of Science , 2015.","chicago":"Palacci, Jérémie A, Stefano Sacanna, Anaïs Abramian, Jérémie Barral, Kasey Hanson, Alexander Y. Grosberg, David J. Pine, and Paul M. Chaikin. “Artificial Rheotaxis.” <i>Science Advances</i>. American Association for the Advancement of Science , 2015. <a href=\"https://doi.org/10.1126/sciadv.1400214\">https://doi.org/10.1126/sciadv.1400214</a>.","short":"J.A. Palacci, S. Sacanna, A. Abramian, J. Barral, K. Hanson, A.Y. Grosberg, D.J. Pine, P.M. Chaikin, Science Advances 1 (2015)."},"oa":1,"publication_status":"published","has_accepted_license":"1","ddc":["530"],"date_published":"2015-05-01T00:00:00Z","year":"2015","_id":"9057","type":"journal_article","month":"05","oa_version":"Published Version","abstract":[{"lang":"eng","text":"Motility is a basic feature of living microorganisms, and how it works is often determined by environmental cues. Recent efforts have focused on developing artificial systems that can mimic microorganisms, in particular their self-propulsion. We report on the design and characterization of synthetic self-propelled particles that migrate upstream, known as positive rheotaxis. This phenomenon results from a purely physical mechanism involving the interplay between the polarity of the particles and their alignment by a viscous torque. We show quantitative agreement between experimental data and a simple model of an overdamped Brownian pendulum. The model notably predicts the existence of a stagnation point in a diverging flow. We take advantage of this property to demonstrate that our active particles can sense and predictably organize in an imposed flow. Our colloidal system represents an important step toward the realization of biomimetic microsystems with the ability to sense and respond to environmental changes."}],"date_updated":"2023-02-23T13:47:52Z","volume":1,"file_date_updated":"2021-02-02T13:22:19Z","date_created":"2021-02-02T13:15:02Z"},{"keyword":["General Chemistry","Condensed Matter Physics"],"issue":"11","language":[{"iso":"eng"}],"publication_identifier":{"issn":["1744-683X"],"eissn":["1744-6848"]},"doi":"10.1039/c3sm52815d","quality_controlled":"1","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","publisher":"Royal Society of Chemistry ","pmid":1,"publication":"Soft Matter","article_type":"original","article_processing_charge":"No","scopus_import":"1","author":[{"first_name":"Daisuke","last_name":"Takagi","full_name":"Takagi, Daisuke"},{"full_name":"Palacci, Jérémie A","orcid":"0000-0002-7253-9465","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","first_name":"Jérémie A","last_name":"Palacci"},{"full_name":"Braunschweig, Adam B.","last_name":"Braunschweig","first_name":"Adam B."},{"full_name":"Shelley, Michael J.","first_name":"Michael J.","last_name":"Shelley"},{"first_name":"Jun","last_name":"Zhang","full_name":"Zhang, Jun"}],"day":"21","article_number":"1784","arxiv":1,"title":"Hydrodynamic capture of microswimmers into sphere-bound orbits","status":"public","external_id":{"pmid":["24800268"],"arxiv":["1309.5662"]},"intvolume":"        10","extern":"1","citation":{"short":"D. Takagi, J.A. Palacci, A.B. Braunschweig, M.J. Shelley, J. Zhang, Soft Matter 10 (2014).","chicago":"Takagi, Daisuke, Jérémie A Palacci, Adam B. Braunschweig, Michael J. Shelley, and Jun Zhang. “Hydrodynamic Capture of Microswimmers into Sphere-Bound Orbits.” <i>Soft Matter</i>. Royal Society of Chemistry , 2014. <a href=\"https://doi.org/10.1039/c3sm52815d\">https://doi.org/10.1039/c3sm52815d</a>.","ieee":"D. Takagi, J. A. Palacci, A. B. Braunschweig, M. J. Shelley, and J. Zhang, “Hydrodynamic capture of microswimmers into sphere-bound orbits,” <i>Soft Matter</i>, vol. 10, no. 11. Royal Society of Chemistry , 2014.","apa":"Takagi, D., Palacci, J. A., Braunschweig, A. B., Shelley, M. J., &#38; Zhang, J. (2014). Hydrodynamic capture of microswimmers into sphere-bound orbits. <i>Soft Matter</i>. Royal Society of Chemistry . <a href=\"https://doi.org/10.1039/c3sm52815d\">https://doi.org/10.1039/c3sm52815d</a>","ista":"Takagi D, Palacci JA, Braunschweig AB, Shelley MJ, Zhang J. 2014. Hydrodynamic capture of microswimmers into sphere-bound orbits. Soft Matter. 10(11), 1784.","mla":"Takagi, Daisuke, et al. “Hydrodynamic Capture of Microswimmers into Sphere-Bound Orbits.” <i>Soft Matter</i>, vol. 10, no. 11, 1784, Royal Society of Chemistry , 2014, doi:<a href=\"https://doi.org/10.1039/c3sm52815d\">10.1039/c3sm52815d</a>.","ama":"Takagi D, Palacci JA, Braunschweig AB, Shelley MJ, Zhang J. Hydrodynamic capture of microswimmers into sphere-bound orbits. <i>Soft Matter</i>. 2014;10(11). doi:<a href=\"https://doi.org/10.1039/c3sm52815d\">10.1039/c3sm52815d</a>"},"publication_status":"published","oa":1,"date_published":"2014-03-21T00:00:00Z","main_file_link":[{"url":"https://arxiv.org/abs/1309.5662","open_access":"1"}],"year":"2014","_id":"9050","type":"journal_article","month":"03","oa_version":"Preprint","abstract":[{"lang":"eng","text":"Self-propelled particles can exhibit surprising non-equilibrium behaviors, and how they interact with obstacles or boundaries remains an important open problem. Here we show that chemically propelled micro-rods can be captured, with little change in their speed, into close orbits around solid spheres resting on or near a horizontal plane. We show that this interaction between sphere and particle is short-range, occurring even for spheres smaller than the particle length, and for a variety of sphere materials. We consider a simple model, based on lubrication theory, of a force- and torque-free swimmer driven by a surface slip (the phoretic propulsion mechanism) and moving near a solid surface. The model demonstrates capture, or movement towards the surface, and yields speeds independent of distance. This study reveals the crucial aspects of activity–driven interactions of self-propelled particles with passive objects, and brings into question the use of colloidal tracers as probes of active matter."}],"date_updated":"2023-02-23T13:47:35Z","volume":10,"date_created":"2021-02-01T13:43:31Z"},{"main_file_link":[{"url":"https://doi.org/10.1098/rsta.2013.0372","open_access":"1"}],"date_published":"2014-11-28T00:00:00Z","publication_status":"published","oa":1,"citation":{"ama":"Palacci JA, Sacanna S, Kim S-H, Yi G-R, Pine DJ, Chaikin PM. Light-activated self-propelled colloids. <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i>. 2014;372(2029). doi:<a href=\"https://doi.org/10.1098/rsta.2013.0372\">10.1098/rsta.2013.0372</a>","apa":"Palacci, J. A., Sacanna, S., Kim, S.-H., Yi, G.-R., Pine, D. J., &#38; Chaikin, P. M. (2014). Light-activated self-propelled colloids. <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i>. The Royal Society. <a href=\"https://doi.org/10.1098/rsta.2013.0372\">https://doi.org/10.1098/rsta.2013.0372</a>","mla":"Palacci, Jérémie A., et al. “Light-Activated Self-Propelled Colloids.” <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i>, vol. 372, no. 2029, 20130372, The Royal Society, 2014, doi:<a href=\"https://doi.org/10.1098/rsta.2013.0372\">10.1098/rsta.2013.0372</a>.","ista":"Palacci JA, Sacanna S, Kim S-H, Yi G-R, Pine DJ, Chaikin PM. 2014. Light-activated self-propelled colloids. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 372(2029), 20130372.","chicago":"Palacci, Jérémie A, S. Sacanna, S.-H. Kim, G.-R. Yi, D. J. Pine, and P. M. Chaikin. “Light-Activated Self-Propelled Colloids.” <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i>. The Royal Society, 2014. <a href=\"https://doi.org/10.1098/rsta.2013.0372\">https://doi.org/10.1098/rsta.2013.0372</a>.","ieee":"J. A. Palacci, S. Sacanna, S.-H. Kim, G.-R. Yi, D. J. Pine, and P. M. Chaikin, “Light-activated self-propelled colloids,” <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i>, vol. 372, no. 2029. The Royal Society, 2014.","short":"J.A. Palacci, S. Sacanna, S.-H. Kim, G.-R. Yi, D.J. Pine, P.M. Chaikin, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372 (2014)."},"intvolume":"       372","extern":"1","external_id":{"arxiv":["1410.7278"],"pmid":["25332383"]},"status":"public","date_created":"2021-02-18T14:31:11Z","volume":372,"type":"journal_article","oa_version":"Published Version","month":"11","date_updated":"2021-02-22T10:44:16Z","abstract":[{"lang":"eng","text":"Light-activated self-propelled colloids are synthesized and their active motion is studied using optical microscopy. We propose a versatile route using different photoactive materials, and demonstrate a multiwavelength activation and propulsion. Thanks to the photoelectrochemical properties of two semiconductor materials (α-Fe2O3 and TiO2), a light with an energy higher than the bandgap triggers the reaction of decomposition of hydrogen peroxide and produces a chemical cloud around the particle. It induces a phoretic attraction with neighbouring colloids as well as an osmotic self-propulsion of the particle on the substrate. We use these mechanisms to form colloidal cargos as well as self-propelled particles where the light-activated component is embedded into a dielectric sphere. The particles are self-propelled along a direction otherwise randomized by thermal fluctuations, and exhibit a persistent random walk. For sufficient surface density, the particles spontaneously form ‘living crystals’ which are mobile, break apart and reform. Steering the particle with an external magnetic field, we show that the formation of the dense phase results from the collisions heads-on of the particles. This effect is intrinsically non-equilibrium and a novel principle of organization for systems without detailed balance. Engineering families of particles self-propelled by different wavelength demonstrate a good understanding of both the physics and the chemistry behind the system and points to a general route for designing new families of self-propelled particles."}],"_id":"9166","year":"2014","quality_controlled":"1","doi":"10.1098/rsta.2013.0372","publication_identifier":{"issn":["1364-503X"],"eissn":["1471-2962"]},"issue":"2029","language":[{"iso":"eng"}],"keyword":["General Engineering","General Physics and Astronomy","General Mathematics"],"article_number":"20130372","arxiv":1,"title":"Light-activated self-propelled colloids","day":"28","author":[{"full_name":"Palacci, Jérémie A","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","orcid":"0000-0002-7253-9465","last_name":"Palacci","first_name":"Jérémie A"},{"full_name":"Sacanna, S.","first_name":"S.","last_name":"Sacanna"},{"first_name":"S.-H.","last_name":"Kim","full_name":"Kim, S.-H."},{"first_name":"G.-R.","last_name":"Yi","full_name":"Yi, G.-R."},{"full_name":"Pine, D. J.","first_name":"D. J.","last_name":"Pine"},{"last_name":"Chaikin","first_name":"P. M.","full_name":"Chaikin, P. M."}],"article_type":"original","scopus_import":"1","article_processing_charge":"No","publication":"Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences","pmid":1,"publisher":"The Royal Society","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425"},{"extern":"1","intvolume":"       339","citation":{"ama":"Palacci JA, Sacanna S, Steinberg AP, Pine DJ, Chaikin PM. Living crystals of light-activated colloidal surfers. <i>Science</i>. 2013;339(6122):936-940. doi:<a href=\"https://doi.org/10.1126/science.1230020\">10.1126/science.1230020</a>","apa":"Palacci, J. A., Sacanna, S., Steinberg, A. P., Pine, D. J., &#38; Chaikin, P. M. (2013). Living crystals of light-activated colloidal surfers. <i>Science</i>. American Association for the Advancement of Science . <a href=\"https://doi.org/10.1126/science.1230020\">https://doi.org/10.1126/science.1230020</a>","mla":"Palacci, Jérémie A., et al. “Living Crystals of Light-Activated Colloidal Surfers.” <i>Science</i>, vol. 339, no. 6122, American Association for the Advancement of Science , 2013, pp. 936–40, doi:<a href=\"https://doi.org/10.1126/science.1230020\">10.1126/science.1230020</a>.","ista":"Palacci JA, Sacanna S, Steinberg AP, Pine DJ, Chaikin PM. 2013. Living crystals of light-activated colloidal surfers. Science. 339(6122), 936–940.","chicago":"Palacci, Jérémie A, S. Sacanna, A. P. Steinberg, D. J. Pine, and P. M. Chaikin. “Living Crystals of Light-Activated Colloidal Surfers.” <i>Science</i>. American Association for the Advancement of Science , 2013. <a href=\"https://doi.org/10.1126/science.1230020\">https://doi.org/10.1126/science.1230020</a>.","ieee":"J. A. Palacci, S. Sacanna, A. P. Steinberg, D. J. Pine, and P. M. Chaikin, “Living crystals of light-activated colloidal surfers,” <i>Science</i>, vol. 339, no. 6122. American Association for the Advancement of Science , pp. 936–940, 2013.","short":"J.A. Palacci, S. Sacanna, A.P. Steinberg, D.J. Pine, P.M. Chaikin, Science 339 (2013) 936–940."},"external_id":{"pmid":["23371555"]},"status":"public","date_published":"2013-02-22T00:00:00Z","publication_status":"published","_id":"9055","year":"2013","volume":339,"date_created":"2021-02-01T14:37:29Z","page":"936-940","type":"journal_article","oa_version":"None","month":"02","abstract":[{"lang":"eng","text":"Spontaneous formation of colonies of bacteria or flocks of birds are examples of self-organization in active living matter. Here, we demonstrate a form of self-organization from nonequilibrium driving forces in a suspension of synthetic photoactivated colloidal particles. They lead to two-dimensional \"living crystals,\" which form, break, explode, and re-form elsewhere. The dynamic assembly results from a competition between self-propulsion of particles and an attractive interaction induced respectively by osmotic and phoretic effects and activated by light. We measured a transition from normal to giant-number fluctuations. Our experiments are quantitatively described by simple numerical simulations. We show that the existence of the living crystals is intrinsically related to the out-of-equilibrium collisions of the self-propelled particles."}],"date_updated":"2022-08-25T14:57:43Z","keyword":["Multidisciplinary"],"issue":"6122","language":[{"iso":"eng"}],"doi":"10.1126/science.1230020","quality_controlled":"1","publication_identifier":{"eissn":["1095-9203"],"issn":["0036-8075"]},"publication":"Science","article_type":"original","scopus_import":"1","article_processing_charge":"No","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","publisher":"American Association for the Advancement of Science ","pmid":1,"title":"Living crystals of light-activated colloidal surfers","author":[{"first_name":"Jérémie A","last_name":"Palacci","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","orcid":"0000-0002-7253-9465","full_name":"Palacci, Jérémie A"},{"full_name":"Sacanna, S.","first_name":"S.","last_name":"Sacanna"},{"full_name":"Steinberg, A. P.","last_name":"Steinberg","first_name":"A. P."},{"first_name":"D. J.","last_name":"Pine","full_name":"Pine, D. J."},{"last_name":"Chaikin","first_name":"P. M.","full_name":"Chaikin, P. M."}],"day":"22"},{"page":"15978-15981","type":"journal_article","month":"10","oa_version":"Preprint","abstract":[{"lang":"eng","text":"We introduce a self-propelled colloidal hematite docker that can be steered to a small particle cargo many times its size, dock, transport the cargo to a remote location, and then release it. The self-propulsion and docking are reversible and activated by visible light. The docker can be steered either by a weak uniform magnetic field or by nanoscale tracks in a textured substrate. The light-activated motion and docking originate from osmotic/phoretic particle transport in a concentration gradient of fuel, hydrogen peroxide, induced by the photocatalytic activity of the hematite. The docking mechanism is versatile and can be applied to various materials and shapes. The hematite dockers are simple single-component particles and are synthesized in bulk quantities. This system opens up new possibilities for designing complex micrometer-size factories as well as new biomimetic systems."}],"date_updated":"2021-02-22T10:10:41Z","volume":135,"date_created":"2021-02-18T14:31:26Z","year":"2013","_id":"9167","publication_status":"published","oa":1,"date_published":"2013-10-30T00:00:00Z","main_file_link":[{"url":"https://arxiv.org/abs/1310.5724","open_access":"1"}],"external_id":{"pmid":["24131488"],"arxiv":["1310.5724"]},"status":"public","extern":"1","intvolume":"       135","citation":{"chicago":"Palacci, Jérémie A, Stefano Sacanna, Adrian Vatchinsky, Paul M. Chaikin, and David J. Pine. “Photoactivated Colloidal Dockers for Cargo Transportation.” <i>Journal of the American Chemical Society</i>. American Chemical Society, 2013. <a href=\"https://doi.org/10.1021/ja406090s\">https://doi.org/10.1021/ja406090s</a>.","ieee":"J. A. Palacci, S. Sacanna, A. Vatchinsky, P. M. Chaikin, and D. J. Pine, “Photoactivated colloidal dockers for cargo transportation,” <i>Journal of the American Chemical Society</i>, vol. 135, no. 43. American Chemical Society, pp. 15978–15981, 2013.","short":"J.A. Palacci, S. Sacanna, A. Vatchinsky, P.M. Chaikin, D.J. Pine, Journal of the American Chemical Society 135 (2013) 15978–15981.","ama":"Palacci JA, Sacanna S, Vatchinsky A, Chaikin PM, Pine DJ. Photoactivated colloidal dockers for cargo transportation. <i>Journal of the American Chemical Society</i>. 2013;135(43):15978-15981. doi:<a href=\"https://doi.org/10.1021/ja406090s\">10.1021/ja406090s</a>","apa":"Palacci, J. A., Sacanna, S., Vatchinsky, A., Chaikin, P. M., &#38; Pine, D. J. (2013). Photoactivated colloidal dockers for cargo transportation. <i>Journal of the American Chemical Society</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/ja406090s\">https://doi.org/10.1021/ja406090s</a>","ista":"Palacci JA, Sacanna S, Vatchinsky A, Chaikin PM, Pine DJ. 2013. Photoactivated colloidal dockers for cargo transportation. Journal of the American Chemical Society. 135(43), 15978–15981.","mla":"Palacci, Jérémie A., et al. “Photoactivated Colloidal Dockers for Cargo Transportation.” <i>Journal of the American Chemical Society</i>, vol. 135, no. 43, American Chemical Society, 2013, pp. 15978–81, doi:<a href=\"https://doi.org/10.1021/ja406090s\">10.1021/ja406090s</a>."},"author":[{"full_name":"Palacci, Jérémie A","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","orcid":"0000-0002-7253-9465","last_name":"Palacci","first_name":"Jérémie A"},{"full_name":"Sacanna, Stefano","last_name":"Sacanna","first_name":"Stefano"},{"last_name":"Vatchinsky","first_name":"Adrian","full_name":"Vatchinsky, Adrian"},{"full_name":"Chaikin, Paul M.","first_name":"Paul M.","last_name":"Chaikin"},{"full_name":"Pine, David J.","last_name":"Pine","first_name":"David J."}],"day":"30","arxiv":1,"title":"Photoactivated colloidal dockers for cargo transportation","publisher":"American Chemical Society","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","pmid":1,"publication":"Journal of the American Chemical Society","article_type":"original","article_processing_charge":"No","scopus_import":"1","publication_identifier":{"eissn":["15205126"],"issn":["00027863"]},"doi":"10.1021/ja406090s","quality_controlled":"1","keyword":["Colloid and Surface Chemistry","Biochemistry","General Chemistry","Catalysis"],"issue":"43","language":[{"iso":"eng"}]},{"_id":"9014","year":"2012","volume":108,"date_created":"2021-01-19T10:26:59Z","type":"journal_article","month":"06","oa_version":"Preprint","date_updated":"2023-02-23T13:46:45Z","abstract":[{"text":"In this Letter, we explore experimentally the phase behavior of a dense active suspension of self-propelled colloids. In addition to a solidlike and gaslike phase observed for high and low densities, a novel cluster phase is reported at intermediate densities. This takes the form of a stationary assembly of dense aggregates—resulting from a permanent dynamical merging and separation of active colloids—whose average size grows with activity as a linear function of the self-propelling velocity. While different possible scenarios can be considered to account for these observations—such as a generic velocity weakening instability recently put forward—we show that the experimental results are reproduced mathematically by a chemotactic aggregation mechanism, originally introduced to account for bacterial aggregation and accounting here for diffusiophoretic chemical interaction between colloidal swimmers.","lang":"eng"}],"extern":"1","intvolume":"       108","citation":{"mla":"Theurkauff, I., et al. “Dynamic Clustering in Active Colloidal Suspensions with Chemical Signaling.” <i>Physical Review Letters</i>, vol. 108, no. 26, 268303, American Physical Society , 2012, doi:<a href=\"https://doi.org/10.1103/physrevlett.108.268303\">10.1103/physrevlett.108.268303</a>.","ista":"Theurkauff I, Cottin-Bizonne C, Palacci JA, Ybert C, Bocquet L. 2012. Dynamic clustering in active colloidal suspensions with chemical signaling. Physical Review Letters. 108(26), 268303.","apa":"Theurkauff, I., Cottin-Bizonne, C., Palacci, J. A., Ybert, C., &#38; Bocquet, L. (2012). Dynamic clustering in active colloidal suspensions with chemical signaling. <i>Physical Review Letters</i>. American Physical Society . <a href=\"https://doi.org/10.1103/physrevlett.108.268303\">https://doi.org/10.1103/physrevlett.108.268303</a>","ama":"Theurkauff I, Cottin-Bizonne C, Palacci JA, Ybert C, Bocquet L. Dynamic clustering in active colloidal suspensions with chemical signaling. <i>Physical Review Letters</i>. 2012;108(26). doi:<a href=\"https://doi.org/10.1103/physrevlett.108.268303\">10.1103/physrevlett.108.268303</a>","short":"I. Theurkauff, C. Cottin-Bizonne, J.A. Palacci, C. Ybert, L. Bocquet, Physical Review Letters 108 (2012).","ieee":"I. Theurkauff, C. Cottin-Bizonne, J. A. Palacci, C. Ybert, and L. Bocquet, “Dynamic clustering in active colloidal suspensions with chemical signaling,” <i>Physical Review Letters</i>, vol. 108, no. 26. American Physical Society , 2012.","chicago":"Theurkauff, I., C. Cottin-Bizonne, Jérémie A Palacci, C. Ybert, and L. Bocquet. “Dynamic Clustering in Active Colloidal Suspensions with Chemical Signaling.” <i>Physical Review Letters</i>. American Physical Society , 2012. <a href=\"https://doi.org/10.1103/physrevlett.108.268303\">https://doi.org/10.1103/physrevlett.108.268303</a>."},"status":"public","external_id":{"pmid":["23005020"],"arxiv":["1202.6264"]},"date_published":"2012-06-29T00:00:00Z","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1202.6264"}],"publication_status":"published","oa":1,"publication":"Physical Review Letters","article_type":"letter_note","article_processing_charge":"No","scopus_import":"1","publisher":"American Physical Society ","user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","pmid":1,"article_number":"268303","title":"Dynamic clustering in active colloidal suspensions with chemical signaling","arxiv":1,"author":[{"full_name":"Theurkauff, I.","first_name":"I.","last_name":"Theurkauff"},{"first_name":"C.","last_name":"Cottin-Bizonne","full_name":"Cottin-Bizonne, C."},{"first_name":"Jérémie A","last_name":"Palacci","id":"8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d","orcid":"0000-0002-7253-9465","full_name":"Palacci, Jérémie A"},{"full_name":"Ybert, C.","last_name":"Ybert","first_name":"C."},{"full_name":"Bocquet, L.","first_name":"L.","last_name":"Bocquet"}],"day":"29","issue":"26","language":[{"iso":"eng"}],"doi":"10.1103/physrevlett.108.268303","quality_controlled":"1","publication_identifier":{"eissn":["10797114"],"issn":["00319007"]}}]