--- _id: '12085' abstract: - lang: eng text: Molecular catch bonds are ubiquitous in biology and essential for processes like leucocyte extravasion1 and cellular mechanosensing2. Unlike normal (slip) bonds, catch bonds strengthen under tension. The current paradigm is that this feature provides ‘strength on demand3’, thus enabling cells to increase rigidity under stress1,4,5,6. However, catch bonds are often weaker than slip bonds because they have cryptic binding sites that are usually buried7,8. Here we show that catch bonds render reconstituted cytoskeletal actin networks stronger than slip bonds, even though the individual bonds are weaker. Simulations show that slip bonds remain trapped in stress-free areas, whereas weak binding allows catch bonds to mitigate crack initiation by moving to high-tension areas. This ‘dissociation on demand’ explains how cells combine mechanical strength with the adaptability required for shape change, and is relevant to diseases where catch bonding is compromised7,9, including focal segmental glomerulosclerosis10 caused by the α-actinin-4 mutant studied here. We surmise that catch bonds are the key to create life-like materials. acknowledgement: 'We thank M. van Hecke and C. Alkemade for critical reading of the manuscript. We thank P. R. ten Wolde, K. Storm, W. Ellenbroek, C. Broedersz, D. Brueckner and M. Berger for fruitful discussions. We thank W. Brieher and V. Tang from the University of Illinois for the kind gift of purified α-actinin-4 (WT and the K255E point mutant) and their plasmids; M. Kuit-Vinkenoog and J. den Haan for actin and further purification of α-actinin-4; A. Goutou and I. Isturiz-Petitjean for co-sedimentation measurements and V. Sunderlíková for the design, mutagenesis, cloning and purifying of the α-actinin-4 constructs used in the single-molecule experiments. We gratefully acknowledge financial support from the following sources: research program of the Netherlands Organization for Scientific Research (NWO) (S.J.T., A.R. and M.J.A.); ERC Starting Grant (335672-MINICELL) (G.H.K. and Y.M.). ‘BaSyC—Building a Synthetic Cell’ Gravitation grant (024.003.019) of the Netherlands Ministry of Education, Culture and Science (OCW) and the Netherlands Organisation for Scientific Research (G.H.K. and L.B.); and support from the National Institutes of Health (1R01GM126256) (T.K. and W.J.).' article_processing_charge: No article_type: original author: - first_name: Yuval full_name: Mulla, Yuval last_name: Mulla - first_name: Mario full_name: Avellaneda Sarrió, Mario id: DC4BA84C-56E6-11EA-AD5D-348C3DDC885E last_name: Avellaneda Sarrió orcid: 0000-0001-6406-524X - first_name: Antoine full_name: Roland, Antoine last_name: Roland - first_name: Lucia full_name: Baldauf, Lucia last_name: Baldauf - first_name: Wonyeong full_name: Jung, Wonyeong last_name: Jung - first_name: Taeyoon full_name: Kim, Taeyoon last_name: Kim - first_name: Sander J. full_name: Tans, Sander J. last_name: Tans - first_name: Gijsje H. full_name: Koenderink, Gijsje H. last_name: Koenderink citation: ama: Mulla Y, Avellaneda Sarrió M, Roland A, et al. Weak catch bonds make strong networks. Nature Materials. 2022;21(9):1019-1023. doi:10.1038/s41563-022-01288-0 apa: Mulla, Y., Avellaneda Sarrió, M., Roland, A., Baldauf, L., Jung, W., Kim, T., … Koenderink, G. H. (2022). Weak catch bonds make strong networks. Nature Materials. Springer Nature. https://doi.org/10.1038/s41563-022-01288-0 chicago: Mulla, Yuval, Mario Avellaneda Sarrió, Antoine Roland, Lucia Baldauf, Wonyeong Jung, Taeyoon Kim, Sander J. Tans, and Gijsje H. Koenderink. “Weak Catch Bonds Make Strong Networks.” Nature Materials. Springer Nature, 2022. https://doi.org/10.1038/s41563-022-01288-0. ieee: Y. Mulla et al., “Weak catch bonds make strong networks,” Nature Materials, vol. 21, no. 9. Springer Nature, pp. 1019–1023, 2022. ista: Mulla Y, Avellaneda Sarrió M, Roland A, Baldauf L, Jung W, Kim T, Tans SJ, Koenderink GH. 2022. Weak catch bonds make strong networks. Nature Materials. 21(9), 1019–1023. mla: Mulla, Yuval, et al. “Weak Catch Bonds Make Strong Networks.” Nature Materials, vol. 21, no. 9, Springer Nature, 2022, pp. 1019–23, doi:10.1038/s41563-022-01288-0. short: Y. Mulla, M. Avellaneda Sarrió, A. Roland, L. Baldauf, W. Jung, T. Kim, S.J. Tans, G.H. Koenderink, Nature Materials 21 (2022) 1019–1023. date_created: 2022-09-11T22:01:57Z date_published: 2022-09-01T00:00:00Z date_updated: 2023-08-03T14:08:47Z day: '01' department: - _id: MiSi doi: 10.1038/s41563-022-01288-0 external_id: isi: - '000844592000002' pmid: - '36008604' intvolume: ' 21' isi: 1 issue: '9' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1101/2020.07.27.219618 month: '09' oa: 1 oa_version: Preprint page: 1019-1023 pmid: 1 publication: Nature Materials publication_identifier: eissn: - 1476-4660 issn: - 1476-1122 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Weak catch bonds make strong networks type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 21 year: '2022' ... --- _id: '8909' abstract: - lang: eng text: Spin qubits are considered to be among the most promising candidates for building a quantum processor. Group IV hole spin qubits have moved into the focus of interest due to the ease of operation and compatibility with Si technology. In addition, Ge offers the option for monolithic superconductor-semiconductor integration. Here we demonstrate a hole spin qubit operating at fields below 10 mT, the critical field of Al, by exploiting the large out-of-plane hole g-factors in planar Ge and by encoding the qubit into the singlet-triplet states of a double quantum dot. We observe electrically controlled X and Z-rotations with tunable frequencies exceeding 100 MHz and dephasing times of 1μs which we extend beyond 15μs with echo techniques. These results show that Ge hole singlet triplet qubits outperform their electronic Si and GaAs based counterparts in speed and coherence, respectively. In addition, they are on par with Ge single spin qubits, but can be operated at much lower fields underlining their potential for on chip integration with superconducting technologies. acknowledged_ssus: - _id: M-Shop - _id: NanoFab acknowledgement: This research was supported by the Scientific Service Units of Institute of Science and Technology (IST) Austria through resources provided by the Miba Machine Shop and the nanofabrication facility, and was made possible with the support of the NOMIS Foundation. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Marie Sklodowska-Curie grant agreements no. 844511 and no. 75441, and by the Austrian Science Fund FWF-P 30207 project. A.B. acknowledges support from the European Union Horizon 2020 FET project microSPIRE, no. 766955. M. Botifoll and J.A. acknowledge funding from Generalitat de Catalunya 2017 SGR 327. The Catalan Institute of Nanoscience and Nanotechnology (ICN2) is supported by the Severo Ochoa programme from the Spanish Ministery of Economy (MINECO) (grant no. SEV-2017-0706) and is funded by the Catalonian Research Centre (CERCA) Programme, Generalitat de Catalunya. Part of the present work has been performed within the framework of the Universitat Autónoma de Barcelona Materials Science PhD programme. Part of the HAADF scanning transmission electron microscopy was conducted in the Laboratorio de Microscopias Avanzadas at Instituto de Nanociencia de Aragon, Universidad de Zaragoza. ICN2 acknowledge support from the Spanish Superior Council of Scientific Research (CSIC) Research Platform on Quantum Technologies PTI-001. M.B. acknowledges funding from the Catalan Agency for Management of University and Research Grants (AGAUR) Generalitat de Catalunya formation of investigators (FI) PhD grant. article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Daniel full_name: Jirovec, Daniel id: 4C473F58-F248-11E8-B48F-1D18A9856A87 last_name: Jirovec orcid: 0000-0002-7197-4801 - first_name: Andrea C full_name: Hofmann, Andrea C id: 340F461A-F248-11E8-B48F-1D18A9856A87 last_name: Hofmann - first_name: Andrea full_name: Ballabio, Andrea last_name: Ballabio - first_name: Philipp M. full_name: Mutter, Philipp M. last_name: Mutter - first_name: Giulio full_name: Tavani, Giulio last_name: Tavani - first_name: Marc full_name: Botifoll, Marc last_name: Botifoll - first_name: Alessandro full_name: Crippa, Alessandro id: 1F2B21A2-F6E7-11E9-9B82-F7DBE5697425 last_name: Crippa orcid: 0000-0002-2968-611X - first_name: Josip full_name: Kukucka, Josip id: 3F5D8856-F248-11E8-B48F-1D18A9856A87 last_name: Kukucka - first_name: Oliver full_name: Sagi, Oliver id: 71616374-A8E9-11E9-A7CA-09ECE5697425 last_name: Sagi - first_name: Frederico full_name: Martins, Frederico id: 38F80F9A-1CB8-11EA-BC76-B49B3DDC885E last_name: Martins orcid: 0000-0003-2668-2401 - first_name: Jaime full_name: Saez Mollejo, Jaime id: e0390f72-f6e0-11ea-865d-862393336714 last_name: Saez Mollejo - first_name: Ivan full_name: Prieto Gonzalez, Ivan id: 2A307FE2-F248-11E8-B48F-1D18A9856A87 last_name: Prieto Gonzalez orcid: 0000-0002-7370-5357 - first_name: Maksim full_name: Borovkov, Maksim id: 2ac7a0a2-3562-11eb-9256-fbd18ea55087 last_name: Borovkov - first_name: Jordi full_name: Arbiol, Jordi last_name: Arbiol - first_name: Daniel full_name: Chrastina, Daniel last_name: Chrastina - first_name: Giovanni full_name: Isella, Giovanni last_name: Isella - first_name: Georgios full_name: Katsaros, Georgios id: 38DB5788-F248-11E8-B48F-1D18A9856A87 last_name: Katsaros orcid: 0000-0001-8342-202X citation: ama: Jirovec D, Hofmann AC, Ballabio A, et al. A singlet triplet hole spin qubit in planar Ge. Nature Materials. 2021;20(8):1106–1112. doi:10.1038/s41563-021-01022-2 apa: Jirovec, D., Hofmann, A. C., Ballabio, A., Mutter, P. M., Tavani, G., Botifoll, M., … Katsaros, G. (2021). A singlet triplet hole spin qubit in planar Ge. Nature Materials. Springer Nature. https://doi.org/10.1038/s41563-021-01022-2 chicago: Jirovec, Daniel, Andrea C Hofmann, Andrea Ballabio, Philipp M. Mutter, Giulio Tavani, Marc Botifoll, Alessandro Crippa, et al. “A Singlet Triplet Hole Spin Qubit in Planar Ge.” Nature Materials. Springer Nature, 2021. https://doi.org/10.1038/s41563-021-01022-2. ieee: D. Jirovec et al., “A singlet triplet hole spin qubit in planar Ge,” Nature Materials, vol. 20, no. 8. Springer Nature, pp. 1106–1112, 2021. ista: Jirovec D, Hofmann AC, Ballabio A, Mutter PM, Tavani G, Botifoll M, Crippa A, Kukucka J, Sagi O, Martins F, Saez Mollejo J, Prieto Gonzalez I, Borovkov M, Arbiol J, Chrastina D, Isella G, Katsaros G. 2021. A singlet triplet hole spin qubit in planar Ge. Nature Materials. 20(8), 1106–1112. mla: Jirovec, Daniel, et al. “A Singlet Triplet Hole Spin Qubit in Planar Ge.” Nature Materials, vol. 20, no. 8, Springer Nature, 2021, pp. 1106–1112, doi:10.1038/s41563-021-01022-2. short: D. Jirovec, A.C. Hofmann, A. Ballabio, P.M. Mutter, G. Tavani, M. Botifoll, A. Crippa, J. Kukucka, O. Sagi, F. Martins, J. Saez Mollejo, I. Prieto Gonzalez, M. Borovkov, J. Arbiol, D. Chrastina, G. Isella, G. Katsaros, Nature Materials 20 (2021) 1106–1112. date_created: 2020-12-02T10:50:47Z date_published: 2021-08-01T00:00:00Z date_updated: 2024-03-25T23:30:14Z day: '01' department: - _id: GeKa - _id: NanoFab - _id: GradSch doi: 10.1038/s41563-021-01022-2 ec_funded: 1 external_id: arxiv: - '2011.13755' isi: - '000657596400001' intvolume: ' 20' isi: 1 issue: '8' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2011.13755 month: '08' oa: 1 oa_version: Preprint page: 1106–1112 project: - _id: 26A151DA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '844511' name: Majorana bound states in Ge/SiGe heterostructures - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: 2641CE5E-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P30207 name: Hole spin orbit qubits in Ge quantum wells - _id: 262116AA-B435-11E9-9278-68D0E5697425 name: Hybrid Semiconductor - Superconductor Quantum Devices publication: Nature Materials publication_identifier: eissn: - 1476-4660 issn: - 1476-1122 publication_status: published publisher: Springer Nature quality_controlled: '1' related_material: link: - description: News on IST Homepage relation: press_release url: https://ist.ac.at/en/news/quantum-computing-with-holes/ record: - id: '9323' relation: research_data status: public - id: '10058' relation: dissertation_contains status: public scopus_import: '1' status: public title: A singlet triplet hole spin qubit in planar Ge type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 20 year: '2021' ... --- _id: '14309' abstract: - lang: eng text: Establishing precise control over the shape and the interactions of the microscopic building blocks is essential for design of macroscopic soft materials with novel structural, optical and mechanical properties. Here, we demonstrate robust assembly of DNA origami filaments into cholesteric liquid crystals, one-dimensional supramolecular twisted ribbons and two-dimensional colloidal membranes. The exquisite control afforded by the DNA origami technology establishes a quantitative relationship between the microscopic filament structure and the macroscopic cholesteric pitch. Furthermore, it also enables robust assembly of one-dimensional twisted ribbons, which behave as effective supramolecular polymers whose structure and elastic properties can be precisely tuned by controlling the geometry of the elemental building blocks. Our results demonstrate the potential synergy between DNA origami technology and colloidal science, in which the former allows for rapid and robust synthesis of complex particles, and the latter can be used to assemble such particles into bulk materials. article_processing_charge: No article_type: original arxiv: 1 author: - first_name: M full_name: Siavashpouri, M last_name: Siavashpouri - first_name: CH full_name: Wachauf, CH last_name: Wachauf - first_name: MJ full_name: Zakhary, MJ last_name: Zakhary - first_name: Florian M full_name: Praetorius, Florian M id: dfec9381-4341-11ee-8fd8-faa02bba7d62 last_name: Praetorius - first_name: H full_name: Dietz, H last_name: Dietz - first_name: Z full_name: Dogic, Z last_name: Dogic citation: ama: Siavashpouri M, Wachauf C, Zakhary M, Praetorius FM, Dietz H, Dogic Z. Molecular engineering of chiral colloidal liquid crystals using DNA origami. Nature Materials. 2017;16(8):849-856. doi:10.1038/nmat4909 apa: Siavashpouri, M., Wachauf, C., Zakhary, M., Praetorius, F. M., Dietz, H., & Dogic, Z. (2017). Molecular engineering of chiral colloidal liquid crystals using DNA origami. Nature Materials. Springer Nature. https://doi.org/10.1038/nmat4909 chicago: Siavashpouri, M, CH Wachauf, MJ Zakhary, Florian M Praetorius, H Dietz, and Z Dogic. “Molecular Engineering of Chiral Colloidal Liquid Crystals Using DNA Origami.” Nature Materials. Springer Nature, 2017. https://doi.org/10.1038/nmat4909. ieee: M. Siavashpouri, C. Wachauf, M. Zakhary, F. M. Praetorius, H. Dietz, and Z. Dogic, “Molecular engineering of chiral colloidal liquid crystals using DNA origami,” Nature Materials, vol. 16, no. 8. Springer Nature, pp. 849–856, 2017. ista: Siavashpouri M, Wachauf C, Zakhary M, Praetorius FM, Dietz H, Dogic Z. 2017. Molecular engineering of chiral colloidal liquid crystals using DNA origami. Nature Materials. 16(8), 849–856. mla: Siavashpouri, M., et al. “Molecular Engineering of Chiral Colloidal Liquid Crystals Using DNA Origami.” Nature Materials, vol. 16, no. 8, Springer Nature, 2017, pp. 849–56, doi:10.1038/nmat4909. short: M. Siavashpouri, C. Wachauf, M. Zakhary, F.M. Praetorius, H. Dietz, Z. Dogic, Nature Materials 16 (2017) 849–856. date_created: 2023-09-06T13:37:27Z date_published: 2017-05-22T00:00:00Z date_updated: 2023-11-07T11:40:00Z day: '22' doi: 10.1038/nmat4909 extern: '1' external_id: arxiv: - '1705.08944' pmid: - '28530665' intvolume: ' 16' issue: '8' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1705.08944' month: '05' oa: 1 oa_version: Preprint page: 849-856 pmid: 1 publication: Nature Materials publication_identifier: eissn: - 1476-4660 issn: - 1476-1122 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Molecular engineering of chiral colloidal liquid crystals using DNA origami type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 16 year: '2017' ... --- _id: '13435' abstract: - lang: eng text: Micropatterning of surfaces with several chemicals at different spatial locations usually requires multiple stamping and registration steps. Here, we describe an experimental method based on reaction–diffusion phenomena that allows for simultaneous micropatterning of a substrate with several coloured chemicals. In this method, called wet stamping (WETS), aqueous solutions of two or more inorganic salts are delivered onto a film of dry, ionically doped gelatin from an agarose stamp patterned in bas relief. Once in conformal contact, these salts diffuse into the gelatin, where they react to give deeply coloured precipitates. Separation of colours in the plane of the surface is the consequence of the differences in the diffusion coefficients, the solubility products, and the amounts of different salts delivered from the stamp, and is faithfully reproduced by a theoretical model based on a system of reaction–diffusion partial differential equations. The multicolour micropatterns are useful as non-binary optical elements, and could potentially form the basis of new applications in microseparations and in controlled delivery. article_processing_charge: No article_type: original author: - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn - first_name: Marcin full_name: Fialkowski, Marcin last_name: Fialkowski - first_name: Igor T. full_name: Bensemann, Igor T. last_name: Bensemann - first_name: Agnieszka full_name: Bitner, Agnieszka last_name: Bitner - first_name: C. J. full_name: Campbell, C. J. last_name: Campbell - first_name: Kyle full_name: Bishop, Kyle last_name: Bishop - first_name: Stoyan full_name: Smoukov, Stoyan last_name: Smoukov - first_name: Bartosz A. full_name: Grzybowski, Bartosz A. last_name: Grzybowski citation: ama: Klajn R, Fialkowski M, Bensemann IT, et al. Multicolour micropatterning of thin films of dry gels. Nature Materials. 2004;3:729-735. doi:10.1038/nmat1231 apa: Klajn, R., Fialkowski, M., Bensemann, I. T., Bitner, A., Campbell, C. J., Bishop, K., … Grzybowski, B. A. (2004). Multicolour micropatterning of thin films of dry gels. Nature Materials. Springer Nature. https://doi.org/10.1038/nmat1231 chicago: Klajn, Rafal, Marcin Fialkowski, Igor T. Bensemann, Agnieszka Bitner, C. J. Campbell, Kyle Bishop, Stoyan Smoukov, and Bartosz A. Grzybowski. “Multicolour Micropatterning of Thin Films of Dry Gels.” Nature Materials. Springer Nature, 2004. https://doi.org/10.1038/nmat1231. ieee: R. Klajn et al., “Multicolour micropatterning of thin films of dry gels,” Nature Materials, vol. 3. Springer Nature, pp. 729–735, 2004. ista: Klajn R, Fialkowski M, Bensemann IT, Bitner A, Campbell CJ, Bishop K, Smoukov S, Grzybowski BA. 2004. Multicolour micropatterning of thin films of dry gels. Nature Materials. 3, 729–735. mla: Klajn, Rafal, et al. “Multicolour Micropatterning of Thin Films of Dry Gels.” Nature Materials, vol. 3, Springer Nature, 2004, pp. 729–35, doi:10.1038/nmat1231. short: R. Klajn, M. Fialkowski, I.T. Bensemann, A. Bitner, C.J. Campbell, K. Bishop, S. Smoukov, B.A. Grzybowski, Nature Materials 3 (2004) 729–735. date_created: 2023-08-01T10:39:23Z date_published: 2004-09-19T00:00:00Z date_updated: 2023-08-08T12:42:51Z day: '19' doi: 10.1038/nmat1231 extern: '1' external_id: pmid: - '15378052' intvolume: ' 3' keyword: - Mechanical Engineering - Mechanics of Materials - Condensed Matter Physics - General Materials Science - General Chemistry language: - iso: eng month: '09' oa_version: None page: 729-735 pmid: 1 publication: Nature Materials publication_identifier: eissn: - 1476-4660 issn: - 1476-1122 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Multicolour micropatterning of thin films of dry gels type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 3 year: '2004' ...