[{"page":"214-229","issue":"1","publication":"ACS Applied Energy Materials","type":"journal_article","day":"08","status":"public","intvolume":"         7","department":[{"_id":"MaIb"}],"date_created":"2024-01-17T12:48:35Z","article_type":"original","date_published":"2024-01-08T00:00:00Z","oaworkID":1,"month":"01","language":[{"iso":"eng"}],"publisher":"American Chemical Society","scopus_import":"1","volume":7,"date_updated":"2025-07-22T14:07:29Z","article_processing_charge":"No","acknowledgement":"This work was supported by the Technology Innovation Program (20011622, Development of Battery System Applied High-Efficiency Heat Control Polymer and Part Component) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea). Author acknowledge to Prof. Tsunehiro Takeuchi from Toyota Technological Institute, Nagoya, Japan for the support of computational resources.","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","quality_controlled":"1","oa_version":"None","_id":"14828","publication_identifier":{"issn":["2574-0962"]},"publication_status":"published","citation":{"apa":"Kiran, G. K., Singh, S., Mahato, N., Sreekanth, T. V. M., Dillip, G. R., Yoo, K., &#38; Kim, J. (2024). Interface engineering modulation combined with electronic structure modification of Zn-doped NiO heterostructure for efficient water-splitting activity. <i>ACS Applied Energy Materials</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsaem.3c02519\">https://doi.org/10.1021/acsaem.3c02519</a>","ieee":"G. K. Kiran <i>et al.</i>, “Interface engineering modulation combined with electronic structure modification of Zn-doped NiO heterostructure for efficient water-splitting activity,” <i>ACS Applied Energy Materials</i>, vol. 7, no. 1. American Chemical Society, pp. 214–229, 2024.","chicago":"Kiran, Gundegowda Kalligowdanadoddi, Saurabh Singh, Neelima Mahato, Thupakula Venkata Madhukar Sreekanth, Gowra Raghupathy Dillip, Kisoo Yoo, and Jonghoon Kim. “Interface Engineering Modulation Combined with Electronic Structure Modification of Zn-Doped NiO Heterostructure for Efficient Water-Splitting Activity.” <i>ACS Applied Energy Materials</i>. American Chemical Society, 2024. <a href=\"https://doi.org/10.1021/acsaem.3c02519\">https://doi.org/10.1021/acsaem.3c02519</a>.","ama":"Kiran GK, Singh S, Mahato N, et al. Interface engineering modulation combined with electronic structure modification of Zn-doped NiO heterostructure for efficient water-splitting activity. <i>ACS Applied Energy Materials</i>. 2024;7(1):214-229. doi:<a href=\"https://doi.org/10.1021/acsaem.3c02519\">10.1021/acsaem.3c02519</a>","mla":"Kiran, Gundegowda Kalligowdanadoddi, et al. “Interface Engineering Modulation Combined with Electronic Structure Modification of Zn-Doped NiO Heterostructure for Efficient Water-Splitting Activity.” <i>ACS Applied Energy Materials</i>, vol. 7, no. 1, American Chemical Society, 2024, pp. 214–29, doi:<a href=\"https://doi.org/10.1021/acsaem.3c02519\">10.1021/acsaem.3c02519</a>.","ista":"Kiran GK, Singh S, Mahato N, Sreekanth TVM, Dillip GR, Yoo K, Kim J. 2024. Interface engineering modulation combined with electronic structure modification of Zn-doped NiO heterostructure for efficient water-splitting activity. ACS Applied Energy Materials. 7(1), 214–229.","short":"G.K. Kiran, S. Singh, N. Mahato, T.V.M. Sreekanth, G.R. Dillip, K. Yoo, J. Kim, ACS Applied Energy Materials 7 (2024) 214–229."},"author":[{"first_name":"Gundegowda Kalligowdanadoddi","full_name":"Kiran, Gundegowda Kalligowdanadoddi","last_name":"Kiran"},{"id":"12d625da-9cb3-11ed-9667-af09d37d3f0a","first_name":"Saurabh","last_name":"Singh","full_name":"Singh, Saurabh","orcid":"0000-0003-2209-5269"},{"first_name":"Neelima","last_name":"Mahato","full_name":"Mahato, Neelima"},{"full_name":"Sreekanth, Thupakula Venkata Madhukar","last_name":"Sreekanth","first_name":"Thupakula Venkata Madhukar"},{"last_name":"Dillip","full_name":"Dillip, Gowra Raghupathy","first_name":"Gowra Raghupathy"},{"first_name":"Kisoo","last_name":"Yoo","full_name":"Yoo, Kisoo"},{"first_name":"Jonghoon","full_name":"Kim, Jonghoon","last_name":"Kim"}],"keyword":["Electrical and Electronic Engineering","Materials Chemistry","Electrochemistry","Energy Engineering and Power Technology","Chemical Engineering (miscellaneous)"],"abstract":[{"lang":"eng","text":"Production of hydrogen at large scale requires development of non-noble, inexpensive, and high-performing catalysts for constructing water-splitting devices. Herein, we report the synthesis of Zn-doped NiO heterostructure (ZnNiO) catalysts at room temperature via a coprecipitation method followed by drying (at 80 °C, 6 h) and calcination at an elevated temperature of 400 °C for 5 h under three distinct conditions, namely, air, N2, and vacuum. The vacuum-synthesized catalyst demonstrates a low overpotential of 88 mV at −10 mA cm–2 and a small Tafel slope of 73 mV dec–1 suggesting relatively higher charge transfer kinetics for hydrogen evolution reactions (HER) compared with the specimens synthesized under N2 or O2 atmosphere. It also demonstrates an oxygen evolution (OER) overpotential of 260 mV at 10 mA cm–2 with a low Tafel slope of 63 mV dec–1. In a full-cell water-splitting device, the vacuum-synthesized ZnNiO heterostructure demonstrates a cell voltage of 1.94 V at 50 mA cm–2 and shows remarkable stability over 24 h at a high current density of 100 mA cm–2. It is also demonstrated in this study that Zn-doping, surface, and interface engineering in transition-metal oxides play a crucial role in efficient electrocatalytic water splitting. Also, the results obtained from density functional theory (DFT + U = 0–8 eV), where U is the on-site Coulomb repulsion parameter also known as Hubbard U, based electronic structure calculations confirm that Zn doping constructively modifies the electronic structure, in both the valence band and the conduction band, and found to be suitable in tailoring the carrier’s effective masses of electrons and holes. The decrease in electron’s effective masses together with large differences between the effective masses of electrons and holes is noticed, which is found to be mainly responsible for achieving the best water-splitting performance from a 9% Zn-doped NiO sample prepared under vacuum."}],"isi":1,"year":"2024","doi":"10.1021/acsaem.3c02519","title":"Interface engineering modulation combined with electronic structure modification of Zn-doped NiO heterostructure for efficient water-splitting activity","external_id":{"oaworkID":["w4389780443"],"isi":["001138342900001"]}},{"publisher":"American Chemical Society","language":[{"iso":"eng"}],"month":"12","article_type":"original","date_published":"2023-12-28T00:00:00Z","date_created":"2024-01-05T09:20:48Z","has_accepted_license":"1","department":[{"_id":"StFr"}],"status":"public","day":"28","type":"journal_article","publication":"ACS Applied Energy Materials","title":"Exploring the landscape of heterocyclic quinones for redox flow batteries","doi":"10.1021/acsaem.3c02223","year":"2023","ec_funded":1,"ddc":["540"],"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1021/acsaem.3c02223"}],"abstract":[{"lang":"eng","text":"Redox flow batteries (RFBs) rely on the development of cheap, highly soluble, and high-energy-density electrolytes. Several candidate quinones have already been investigated in the literature as two-electron anolytes or catholytes, benefiting from fast kinetics, high tunability, and low cost. Here, an investigation of nitrogen-rich fused heteroaromatic quinones was carried out to explore avenues for electrolyte development. These quinones were synthesized and screened by using electrochemical techniques. The most promising candidate, 4,8-dioxo-4,8-dihydrobenzo[1,2-d:4,5-d′]bis([1,2,3]triazole)-1,5-diide (−0.68 V(SHE)), was tested in both an asymmetric and symmetric full-cell setup resulting in capacity fade rates of 0.35% per cycle and 0.0124% per cycle, respectively. In situ ultraviolet-visible spectroscopy (UV–Vis), nuclear magnetic resonance (NMR), and electron paramagnetic resonance (EPR) spectroscopies were used to investigate the electrochemical stability of the charged species during operation. UV–Vis spectroscopy, supported by density functional theory (DFT) modeling, reaffirmed that the two-step charging mechanism observed during battery operation consisted of two, single-electron transfers. The radical concentration during battery operation and the degree of delocalization of the unpaired electron were quantified with NMR and EPR spectroscopy."}],"keyword":["Electrical and Electronic Engineering","Materials Chemistry","Electrochemistry","Energy Engineering and Power Technology","Chemical Engineering (miscellaneous)"],"author":[{"last_name":"Jethwa","full_name":"Jethwa, Rajesh B","orcid":"0000-0002-0404-4356","first_name":"Rajesh B","id":"4cc538d5-803f-11ed-ab7e-8139573aad8f"},{"first_name":"Dominic","last_name":"Hey","full_name":"Hey, Dominic"},{"last_name":"Kerber","full_name":"Kerber, Rachel N.","first_name":"Rachel N."},{"full_name":"Bond, Andrew D.","last_name":"Bond","first_name":"Andrew D."},{"full_name":"Wright, Dominic S.","last_name":"Wright","first_name":"Dominic S."},{"full_name":"Grey, Clare P.","last_name":"Grey","first_name":"Clare P."}],"publication_status":"epub_ahead","citation":{"ama":"Jethwa RB, Hey D, Kerber RN, Bond AD, Wright DS, Grey CP. Exploring the landscape of heterocyclic quinones for redox flow batteries. <i>ACS Applied Energy Materials</i>. 2023. doi:<a href=\"https://doi.org/10.1021/acsaem.3c02223\">10.1021/acsaem.3c02223</a>","mla":"Jethwa, Rajesh B., et al. “Exploring the Landscape of Heterocyclic Quinones for Redox Flow Batteries.” <i>ACS Applied Energy Materials</i>, American Chemical Society, 2023, doi:<a href=\"https://doi.org/10.1021/acsaem.3c02223\">10.1021/acsaem.3c02223</a>.","short":"R.B. Jethwa, D. Hey, R.N. Kerber, A.D. Bond, D.S. Wright, C.P. Grey, ACS Applied Energy Materials (2023).","ista":"Jethwa RB, Hey D, Kerber RN, Bond AD, Wright DS, Grey CP. 2023. Exploring the landscape of heterocyclic quinones for redox flow batteries. ACS Applied Energy Materials.","apa":"Jethwa, R. B., Hey, D., Kerber, R. N., Bond, A. D., Wright, D. S., &#38; Grey, C. P. (2023). Exploring the landscape of heterocyclic quinones for redox flow batteries. <i>ACS Applied Energy Materials</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsaem.3c02223\">https://doi.org/10.1021/acsaem.3c02223</a>","ieee":"R. B. Jethwa, D. Hey, R. N. Kerber, A. D. Bond, D. S. Wright, and C. P. Grey, “Exploring the landscape of heterocyclic quinones for redox flow batteries,” <i>ACS Applied Energy Materials</i>. American Chemical Society, 2023.","chicago":"Jethwa, Rajesh B, Dominic Hey, Rachel N. Kerber, Andrew D. Bond, Dominic S. Wright, and Clare P. Grey. “Exploring the Landscape of Heterocyclic Quinones for Redox Flow Batteries.” <i>ACS Applied Energy Materials</i>. American Chemical Society, 2023. <a href=\"https://doi.org/10.1021/acsaem.3c02223\">https://doi.org/10.1021/acsaem.3c02223</a>."},"_id":"14733","publication_identifier":{"eissn":["2574-0962"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","project":[{"_id":"fc2ed2f7-9c52-11eb-aca3-c01059dda49c","name":"IST-BRIDGE: International postdoctoral program","call_identifier":"H2020","grant_number":"101034413"}],"quality_controlled":"1","oa_version":"Published Version","oa":1,"date_updated":"2024-01-08T09:03:01Z","article_processing_charge":"Yes (in subscription journal)"},{"citation":{"mla":"Wald, Sebastian, et al. “Analog Stabilization of an Electro-Optic I/Q Modulator with an Auxiliary Modulation Tone.” <i>Applied Optics</i>, vol. 62, no. 1, Optica Publishing Group, 2023, pp. 1–7, doi:<a href=\"https://doi.org/10.1364/ao.474118\">10.1364/ao.474118</a>.","ama":"Wald S, Diorico FR, Hosten O. Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation tone. <i>Applied Optics</i>. 2023;62(1):1-7. doi:<a href=\"https://doi.org/10.1364/ao.474118\">10.1364/ao.474118</a>","short":"S. Wald, F.R. Diorico, O. Hosten, Applied Optics 62 (2023) 1–7.","ista":"Wald S, Diorico FR, Hosten O. 2023. Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation tone. Applied Optics. 62(1), 1–7.","ieee":"S. Wald, F. R. Diorico, and O. Hosten, “Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation tone,” <i>Applied Optics</i>, vol. 62, no. 1. Optica Publishing Group, pp. 1–7, 2023.","apa":"Wald, S., Diorico, F. R., &#38; Hosten, O. (2023). Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation tone. <i>Applied Optics</i>. Optica Publishing Group. <a href=\"https://doi.org/10.1364/ao.474118\">https://doi.org/10.1364/ao.474118</a>","chicago":"Wald, Sebastian, Fritz R Diorico, and Onur Hosten. “Analog Stabilization of an Electro-Optic I/Q Modulator with an Auxiliary Modulation Tone.” <i>Applied Optics</i>. Optica Publishing Group, 2023. <a href=\"https://doi.org/10.1364/ao.474118\">https://doi.org/10.1364/ao.474118</a>."},"publication_status":"published","author":[{"first_name":"Sebastian","orcid":"0000-0002-5869-1604","full_name":"Wald, Sebastian","last_name":"Wald","id":"133F200A-B015-11E9-AD41-0EDAE5697425"},{"id":"2E054C4C-F248-11E8-B48F-1D18A9856A87","last_name":"Diorico","full_name":"Diorico, Fritz R","orcid":"0000-0002-4947-8924","first_name":"Fritz R"},{"id":"4C02D85E-F248-11E8-B48F-1D18A9856A87","first_name":"Onur","last_name":"Hosten","full_name":"Hosten, Onur","orcid":"0000-0002-2031-204X"}],"keyword":["Atomic and Molecular Physics","and Optics","Engineering (miscellaneous)","Electrical and Electronic Engineering"],"abstract":[{"text":"Proper operation of electro-optic I/Q modulators relies on precise adjustment and control of the relative phase biases between the modulator’s internal interferometer arms. We present an all-analog phase bias locking scheme where error signals are obtained from the beat between the optical carrier and optical tones generated by an auxiliary 2 MHz 𝑅𝐹 tone to lock the phases of all three involved interferometers for operation up to 10 GHz. With the developed method, we demonstrate an I/Q modulator in carrier-suppressed single-sideband mode, where the suppressed carrier and sideband are locked at optical power levels <−27dB\r\n relative to the transmitted sideband. We describe a simple analytical model for calculating the error signals and detail the implementation of the electronic circuitry for the implementation of the method.","lang":"eng"}],"article_processing_charge":"No","date_updated":"2024-01-09T10:10:34Z","volume":62,"oa":1,"arxiv":1,"quality_controlled":"1","oa_version":"Preprint","acknowledgement":"We thank Jakob Vorlaufer for technical contributions and Vyacheslav Li and Sofia Agafonova for comments on the manuscript.","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"issn":["1559-128X"],"eissn":["2155-3165"]},"_id":"14759","year":"2023","doi":"10.1364/ao.474118","external_id":{"arxiv":["2208.11591"]},"title":"Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation tone","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2208.11591","open_access":"1"}],"type":"journal_article","day":"01","status":"public","intvolume":"        62","page":"1-7","publication":"Applied Optics","issue":"1","article_type":"original","date_published":"2023-01-01T00:00:00Z","month":"01","language":[{"iso":"eng"}],"scopus_import":"1","publisher":"Optica Publishing Group","department":[{"_id":"OnHo"}],"date_created":"2024-01-08T13:19:14Z"},{"year":"2023","doi":"10.1109/access.2023.3237897","external_id":{"isi":["000927831000001"]},"title":"Practical limitations of Ethereum’s layer-2","tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"isi":1,"ddc":["000"],"citation":{"apa":"Neiheiser, R., Inacio, G., Rech, L., Montez, C., Matos, M., &#38; Rodrigues, L. (2023). Practical limitations of Ethereum’s layer-2. <i>IEEE Access</i>. Institute of Electrical and Electronics Engineers. <a href=\"https://doi.org/10.1109/access.2023.3237897\">https://doi.org/10.1109/access.2023.3237897</a>","ieee":"R. Neiheiser, G. Inacio, L. Rech, C. Montez, M. Matos, and L. Rodrigues, “Practical limitations of Ethereum’s layer-2,” <i>IEEE Access</i>, vol. 11. Institute of Electrical and Electronics Engineers, pp. 8651–8662, 2023.","chicago":"Neiheiser, Ray, Gustavo Inacio, Luciana Rech, Carlos Montez, Miguel Matos, and Luis Rodrigues. “Practical Limitations of Ethereum’s Layer-2.” <i>IEEE Access</i>. Institute of Electrical and Electronics Engineers, 2023. <a href=\"https://doi.org/10.1109/access.2023.3237897\">https://doi.org/10.1109/access.2023.3237897</a>.","mla":"Neiheiser, Ray, et al. “Practical Limitations of Ethereum’s Layer-2.” <i>IEEE Access</i>, vol. 11, Institute of Electrical and Electronics Engineers, 2023, pp. 8651–62, doi:<a href=\"https://doi.org/10.1109/access.2023.3237897\">10.1109/access.2023.3237897</a>.","ama":"Neiheiser R, Inacio G, Rech L, Montez C, Matos M, Rodrigues L. Practical limitations of Ethereum’s layer-2. <i>IEEE Access</i>. 2023;11:8651-8662. doi:<a href=\"https://doi.org/10.1109/access.2023.3237897\">10.1109/access.2023.3237897</a>","short":"R. Neiheiser, G. Inacio, L. Rech, C. Montez, M. Matos, L. Rodrigues, IEEE Access 11 (2023) 8651–8662.","ista":"Neiheiser R, Inacio G, Rech L, Montez C, Matos M, Rodrigues L. 2023. Practical limitations of Ethereum’s layer-2. IEEE Access. 11, 8651–8662."},"publication_status":"published","abstract":[{"text":"Most permissionless blockchains inherently suffer from throughput limitations. Layer-2 systems, such as side-chains or Rollups, have been proposed as a possible strategy to overcome this limitation. Layer-2 systems interact with the main-chain in two ways. First, users can move funds from/to the main-chain to/from the layer-2. Second, layer-2 systems periodically synchronize with the main-chain to keep some form of log of their activity on the main-chain - this log is key for security. Due to this interaction with the main-chain, which is necessary and recurrent, layer-2 systems impose some load on the main-chain. The impact of such load on the main-chain has been, so far, poorly understood. In addition to that, layer-2 approaches typically sacrifice decentralization and security in favor of higher throughput. This paper presents an experimental study that analyzes the current state of Ethereum layer-2 projects. Our goal is to assess the load they impose on Ethereum and to understand their scalability potential in the long-run. Our analysis shows that the impact of any given layer-2 on the main-chain is the result of both technical aspects (how state is logged on the main-chain) and user behavior (how often users decide to transfer funds between the layer-2 and the main-chain). Based on our observations, we infer that without efficient mechanisms that allow users to transfer funds in a secure and fast manner directly from one layer-2 project to another, current layer-2 systems will not be able to scale Ethereum effectively, regardless of their technical solutions. Furthermore, from our results, we conclude that the layer-2 systems that offer similar security guarantees as Ethereum have limited scalability potential, while approaches that offer better performance, sacrifice security and lead to an increase in centralization which runs against the end-goals of permissionless blockchains.","lang":"eng"}],"keyword":["General Engineering","General Materials Science","General Computer Science","Electrical and Electronic Engineering"],"author":[{"last_name":"Neiheiser","full_name":"Neiheiser, Ray","orcid":"0000-0001-7227-8309","first_name":"Ray","id":"f09651b9-fec0-11ec-b5d8-934aff0e52a4"},{"first_name":"Gustavo","last_name":"Inacio","full_name":"Inacio, Gustavo"},{"first_name":"Luciana","last_name":"Rech","full_name":"Rech, Luciana"},{"full_name":"Montez, Carlos","last_name":"Montez","first_name":"Carlos"},{"first_name":"Miguel","last_name":"Matos","full_name":"Matos, Miguel"},{"first_name":"Luis","full_name":"Rodrigues, Luis","last_name":"Rodrigues"}],"article_processing_charge":"Yes","date_updated":"2023-12-13T12:14:52Z","oa":1,"volume":11,"publication_identifier":{"issn":["2169-3536"]},"_id":"13988","quality_controlled":"1","oa_version":"Published Version","acknowledgement":"This work was supported in part by the Coordenação de Aperfeiçoamento de Pessoal de Nivel Superior (CAPES)—Brazil (CAPES), in part by the Fundação para a Ciência e Tecnologia (FCT) under Project UIDB/50021/2020 and Grant 2020.05270.BD, in part by the Project COSMOS (via the Orçamento de Estado (OE) with ref. PTDC/EEI-COM/29271/2017 and via the ‘‘Programa Operacional Regional de Lisboa na sua componente Fundo Europeu de Desenvolvimento Regional (FEDER)’’ with ref. Lisboa-01-0145-FEDER-029271), and in part by the project Angainor with reference LISBOA-01-0145-FEDER-031456 as well as supported by Meta Platforms for the project key Transparency at Scale.","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"08","date_published":"2023-08-01T00:00:00Z","article_type":"original","scopus_import":"1","publisher":"Institute of Electrical and Electronics Engineers","language":[{"iso":"eng"}],"has_accepted_license":"1","department":[{"_id":"ElKo"}],"file":[{"creator":"dernst","file_id":"14166","content_type":"application/pdf","relation":"main_file","success":1,"date_updated":"2023-08-22T06:37:48Z","access_level":"open_access","date_created":"2023-08-22T06:37:48Z","checksum":"4b80b0ff212edf7e5842fbdd53784432","file_name":"2023_IEEEAccess_Neiheiser.pdf","file_size":1289285}],"date_created":"2023-08-09T12:09:57Z","day":"01","type":"journal_article","intvolume":"        11","status":"public","publication":"IEEE Access","page":"8651-8662","file_date_updated":"2023-08-22T06:37:48Z"},{"scopus_import":"1","publisher":"Springer Nature","language":[{"iso":"eng"}],"month":"06","article_type":"original","date_published":"2022-06-01T00:00:00Z","file":[{"date_updated":"2022-08-05T06:13:19Z","access_level":"open_access","file_name":"2022_NonlinearDyn_Aguilera.pdf","file_size":1416049,"date_created":"2022-08-05T06:13:19Z","checksum":"7d80cdece4e1b1c2106e6772a9622f60","content_type":"application/pdf","relation":"main_file","file_id":"11728","creator":"dernst","success":1}],"date_created":"2022-05-02T07:01:59Z","has_accepted_license":"1","department":[{"_id":"KiMo"}],"intvolume":"       108","status":"public","day":"01","type":"journal_article","publication":"Nonlinear Dynamics","page":"3209-3218","file_date_updated":"2022-08-05T06:13:19Z","title":"Vortices nucleation by inherent fluctuations in nematic liquid crystal cells","external_id":{"isi":["000784871800001"]},"year":"2022","doi":"10.1007/s11071-022-07396-5","ddc":["530"],"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"isi":1,"abstract":[{"text":"Multistable systems are characterized by exhibiting domain coexistence, where each domain accounts for the different equilibrium states. In case these systems are described by vectorial fields, domains can be connected through topological defects. Vortices are one of the most frequent and studied topological defect points. Optical vortices are equally relevant for their fundamental features as beams with topological features and their applications in image processing, telecommunications, optical tweezers, and quantum information. A natural source of optical vortices is the interaction of light beams with matter vortices in liquid crystal cells. The rhythms that govern the emergence of matter vortices due to fluctuations are not established. Here, we investigate the nucleation mechanisms of the matter vortices in liquid crystal cells and establish statistical laws that govern them. Based on a stochastic amplitude equation, the law for the number of nucleated vortices as a function of anisotropy, voltage, and noise level intensity is set. Experimental observations in a nematic liquid crystal cell with homeotropic anchoring and a negative anisotropic dielectric constant under the influence of a transversal electric field show a qualitative agreement with the theoretical findings.","lang":"eng"}],"keyword":["Electrical and Electronic Engineering","Applied Mathematics","Mechanical Engineering","Ocean Engineering","Aerospace Engineering","Control and Systems Engineering"],"author":[{"last_name":"Aguilera","full_name":"Aguilera, Esteban","first_name":"Esteban"},{"last_name":"Clerc","full_name":"Clerc, Marcel G.","first_name":"Marcel G."},{"last_name":"Zambra","full_name":"Zambra, Valeska","first_name":"Valeska","id":"467ed36b-dc96-11ea-b7c8-b043a380b282"}],"citation":{"mla":"Aguilera, Esteban, et al. “Vortices Nucleation by Inherent Fluctuations in Nematic Liquid Crystal Cells.” <i>Nonlinear Dynamics</i>, vol. 108, Springer Nature, 2022, pp. 3209–18, doi:<a href=\"https://doi.org/10.1007/s11071-022-07396-5\">10.1007/s11071-022-07396-5</a>.","ama":"Aguilera E, Clerc MG, Zambra V. Vortices nucleation by inherent fluctuations in nematic liquid crystal cells. <i>Nonlinear Dynamics</i>. 2022;108:3209-3218. doi:<a href=\"https://doi.org/10.1007/s11071-022-07396-5\">10.1007/s11071-022-07396-5</a>","short":"E. Aguilera, M.G. Clerc, V. Zambra, Nonlinear Dynamics 108 (2022) 3209–3218.","ista":"Aguilera E, Clerc MG, Zambra V. 2022. Vortices nucleation by inherent fluctuations in nematic liquid crystal cells. Nonlinear Dynamics. 108, 3209–3218.","ieee":"E. Aguilera, M. G. Clerc, and V. Zambra, “Vortices nucleation by inherent fluctuations in nematic liquid crystal cells,” <i>Nonlinear Dynamics</i>, vol. 108. Springer Nature, pp. 3209–3218, 2022.","apa":"Aguilera, E., Clerc, M. G., &#38; Zambra, V. (2022). Vortices nucleation by inherent fluctuations in nematic liquid crystal cells. <i>Nonlinear Dynamics</i>. Springer Nature. <a href=\"https://doi.org/10.1007/s11071-022-07396-5\">https://doi.org/10.1007/s11071-022-07396-5</a>","chicago":"Aguilera, Esteban, Marcel G. Clerc, and Valeska Zambra. “Vortices Nucleation by Inherent Fluctuations in Nematic Liquid Crystal Cells.” <i>Nonlinear Dynamics</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1007/s11071-022-07396-5\">https://doi.org/10.1007/s11071-022-07396-5</a>."},"publication_status":"published","publication_identifier":{"eissn":["1573-269X"],"issn":["0924-090X"]},"_id":"11343","oa_version":"Published Version","quality_controlled":"1","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","acknowledgement":"The authors thank Enrique Calisto,Michal Kowalczyk, and Michel Ferre for fructified discussions. This work was funded by ANID—Millennium Science Initiative Program—ICN17_012. MGC is thankful for financial support from the Fondecyt 1210353 project.\r\nOpen access funding provided by Institute of Science and Technology (IST Austria).","article_processing_charge":"Yes (via OA deal)","oa":1,"volume":108,"date_updated":"2023-08-03T06:46:54Z"},{"intvolume":"        17","status":"public","day":"14","type":"journal_article","publication":"Nature Nanotechnology","issue":"4","page":"408-416","scopus_import":"1","publisher":"Springer Nature","language":[{"iso":"eng"}],"month":"03","article_type":"original","date_published":"2022-03-14T00:00:00Z","date_created":"2023-08-01T09:32:40Z","abstract":[{"text":"Optoelectronic effects differentiating absorption of right and left circularly polarized photons in thin films of chiral materials are typically prohibitively small for their direct photocurrent observation. Chiral metasurfaces increase the electronic sensitivity to circular polarization, but their out-of-plane architecture entails manufacturing and performance trade-offs. Here, we show that nanoporous thin films of chiral nanoparticles enable high sensitivity to circular polarization due to light-induced polarization-dependent ion accumulation at nanoparticle interfaces. Self-assembled multilayers of gold nanoparticles modified with L-phenylalanine generate a photocurrent under right-handed circularly polarized light as high as 2.41 times higher than under left-handed circularly polarized light. The strong plasmonic coupling between the multiple nanoparticles producing planar chiroplasmonic modes facilitates the ejection of electrons, whose entrapment at the membrane–electrolyte interface is promoted by a thick layer of enantiopure phenylalanine. Demonstrated detection of light ellipticity with equal sensitivity at all incident angles mimics phenomenological aspects of polarization vision in marine animals. The simplicity of self-assembly and sensitivity of polarization detection found in optoionic membranes opens the door to a family of miniaturized fluidic devices for chiral photonics.","lang":"eng"}],"author":[{"full_name":"Cai, Jiarong","last_name":"Cai","first_name":"Jiarong"},{"first_name":"Wei","last_name":"Zhang","full_name":"Zhang, Wei"},{"last_name":"Xu","full_name":"Xu, Liguang","first_name":"Liguang"},{"first_name":"Changlong","last_name":"Hao","full_name":"Hao, Changlong"},{"last_name":"Ma","full_name":"Ma, Wei","first_name":"Wei"},{"last_name":"Sun","full_name":"Sun, Maozhong","first_name":"Maozhong"},{"full_name":"Wu, Xiaoling","last_name":"Wu","first_name":"Xiaoling"},{"first_name":"Xian","full_name":"Qin, Xian","last_name":"Qin"},{"full_name":"Colombari, Felippe Mariano","last_name":"Colombari","first_name":"Felippe Mariano"},{"last_name":"de Moura","full_name":"de Moura, André Farias","first_name":"André Farias"},{"last_name":"Xu","full_name":"Xu, Jiahui","first_name":"Jiahui"},{"first_name":"Mariana Cristina","last_name":"Silva","full_name":"Silva, Mariana Cristina"},{"last_name":"Carneiro-Neto","full_name":"Carneiro-Neto, Evaldo Batista","first_name":"Evaldo Batista"},{"first_name":"Weverson Rodrigues","full_name":"Gomes, Weverson Rodrigues","last_name":"Gomes"},{"first_name":"Renaud A. L.","last_name":"Vallée","full_name":"Vallée, Renaud A. L."},{"last_name":"Pereira","full_name":"Pereira, Ernesto Chaves","first_name":"Ernesto Chaves"},{"first_name":"Xiaogang","full_name":"Liu, Xiaogang","last_name":"Liu"},{"first_name":"Chuanlai","full_name":"Xu, Chuanlai","last_name":"Xu"},{"id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b","full_name":"Klajn, Rafal","last_name":"Klajn","first_name":"Rafal"},{"last_name":"Kotov","full_name":"Kotov, Nicholas A.","first_name":"Nicholas A."},{"last_name":"Kuang","full_name":"Kuang, Hua","first_name":"Hua"}],"keyword":["Electrical and Electronic Engineering","Condensed Matter Physics","General Materials Science","Biomedical Engineering","Atomic and Molecular Physics","and Optics","Bioengineering"],"citation":{"apa":"Cai, J., Zhang, W., Xu, L., Hao, C., Ma, W., Sun, M., … Kuang, H. (2022). Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles. <i>Nature Nanotechnology</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41565-022-01079-3\">https://doi.org/10.1038/s41565-022-01079-3</a>","ieee":"J. Cai <i>et al.</i>, “Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles,” <i>Nature Nanotechnology</i>, vol. 17, no. 4. Springer Nature, pp. 408–416, 2022.","chicago":"Cai, Jiarong, Wei Zhang, Liguang Xu, Changlong Hao, Wei Ma, Maozhong Sun, Xiaoling Wu, et al. “Polarization-Sensitive Optoionic Membranes from Chiral Plasmonic Nanoparticles.” <i>Nature Nanotechnology</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1038/s41565-022-01079-3\">https://doi.org/10.1038/s41565-022-01079-3</a>.","ama":"Cai J, Zhang W, Xu L, et al. Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles. <i>Nature Nanotechnology</i>. 2022;17(4):408-416. doi:<a href=\"https://doi.org/10.1038/s41565-022-01079-3\">10.1038/s41565-022-01079-3</a>","mla":"Cai, Jiarong, et al. “Polarization-Sensitive Optoionic Membranes from Chiral Plasmonic Nanoparticles.” <i>Nature Nanotechnology</i>, vol. 17, no. 4, Springer Nature, 2022, pp. 408–16, doi:<a href=\"https://doi.org/10.1038/s41565-022-01079-3\">10.1038/s41565-022-01079-3</a>.","ista":"Cai J, Zhang W, Xu L, Hao C, Ma W, Sun M, Wu X, Qin X, Colombari FM, de Moura AF, Xu J, Silva MC, Carneiro-Neto EB, Gomes WR, Vallée RAL, Pereira EC, Liu X, Xu C, Klajn R, Kotov NA, Kuang H. 2022. Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles. Nature Nanotechnology. 17(4), 408–416.","short":"J. Cai, W. Zhang, L. Xu, C. Hao, W. Ma, M. Sun, X. Wu, X. Qin, F.M. Colombari, A.F. de Moura, J. Xu, M.C. Silva, E.B. Carneiro-Neto, W.R. Gomes, R.A.L. Vallée, E.C. Pereira, X. Liu, C. Xu, R. Klajn, N.A. Kotov, H. Kuang, Nature Nanotechnology 17 (2022) 408–416."},"publication_status":"published","publication_identifier":{"eissn":["1748-3395"],"issn":["1748-3387"]},"extern":"1","_id":"13352","pmid":1,"oa_version":"Published Version","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","oa":1,"volume":17,"date_updated":"2023-08-02T09:44:31Z","title":"Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles","external_id":{"pmid":["35288671"]},"doi":"10.1038/s41565-022-01079-3","year":"2022","main_file_link":[{"open_access":"1","url":"https://hal.science/hal-03623036/"}]},{"author":[{"first_name":"Sebastijan","full_name":"Kovačič, Sebastijan","last_name":"Kovačič"},{"full_name":"Schafzahl, Bettina","last_name":"Schafzahl","first_name":"Bettina"},{"first_name":"Nadejda B.","full_name":"Matsko, Nadejda B.","last_name":"Matsko"},{"last_name":"Gruber","full_name":"Gruber, Katharina","first_name":"Katharina"},{"last_name":"Schmuck","full_name":"Schmuck, Martin","first_name":"Martin"},{"first_name":"Stefan","last_name":"Koller","full_name":"Koller, Stefan"},{"first_name":"Stefan Alexander","full_name":"Freunberger, Stefan Alexander","last_name":"Freunberger","orcid":"0000-0003-2902-5319","id":"A8CA28E6-CE23-11E9-AD2D-EC27E6697425"},{"first_name":"Christian","last_name":"Slugovc","full_name":"Slugovc, Christian"}],"keyword":["Electrical and Electronic Engineering","Materials Chemistry","Electrochemistry","Energy Engineering and Power Technology","Chemical Engineering (miscellaneous)"],"abstract":[{"text":"Polydicyclopentadiene (pDCPD), a thermoset with excellent mechanical properties, has enormous potential as a lightweight, tough, and stable matrix material owing to its highly cross-linked macromolecular network. This work describes generating pDCPD-based foams and hierarchically porous carbons derived therefrom by combining ring-opening metathesis polymerization (ROMP) of DCPD, high internal phase emulsions (HIPEs) as structural templates, and subsequent carbonization. The structure and function of the carbon foams were characterized and discussed in detail using scanning electron, transmission electron, or atomic force microscopy (SEM, TEM, AFM), electron energy-loss spectroscopy (TEM-EELS), N2 sorption, and analyses of electrical conductivity as well as mechanical properties. The resulting materials exhibited uniform, shape-retaining shrinkage of only ∼1/3 after carbonization. No structural failure was observed even when the pDCPD precursor foams were heated to 1400 °C. Instead, the high porosity, void size, and 3D interconnectivity were fully preserved, and the void diameters could be adjusted between 87 and 2.5 μm. Moreover, foams have a carbon content >97%, an electronic conductivity of up to 2800 S·m–1, a Young’s modulus of up to 2.1 GPa, and a specific surface area of up to 1200 m2·g–1. Surprisingly, the pDCPD foams were carbonized into shapes other than monoliths, such as 10’s of micron thick membranes or foamy coatings adhered to a metal foil or grid substrate. The latter coatings even adhere upon bending. Finally, as a use case, carbonized foams were applied as porous cathodes for Li–O2 batteries where the foams show a favorable combination of porosity, active surface area, and pore size for outstanding capacity.","lang":"eng"}],"citation":{"short":"S. Kovačič, B. Schafzahl, N.B. Matsko, K. Gruber, M. Schmuck, S. Koller, S.A. Freunberger, C. Slugovc, ACS Applied Energy Materials 5 (2022) 14381–14390.","ista":"Kovačič S, Schafzahl B, Matsko NB, Gruber K, Schmuck M, Koller S, Freunberger SA, Slugovc C. 2022. Carbon foams via ring-opening metathesis polymerization of emulsion templates: A facile method to make carbon current collectors for battery applications. ACS Applied Energy Materials. 5(11), 14381–14390.","ama":"Kovačič S, Schafzahl B, Matsko NB, et al. Carbon foams via ring-opening metathesis polymerization of emulsion templates: A facile method to make carbon current collectors for battery applications. <i>ACS Applied Energy Materials</i>. 2022;5(11):14381-14390. doi:<a href=\"https://doi.org/10.1021/acsaem.2c02787\">10.1021/acsaem.2c02787</a>","mla":"Kovačič, Sebastijan, et al. “Carbon Foams via Ring-Opening Metathesis Polymerization of Emulsion Templates: A Facile Method to Make Carbon Current Collectors for Battery Applications.” <i>ACS Applied Energy Materials</i>, vol. 5, no. 11, American Chemical Society, 2022, pp. 14381–90, doi:<a href=\"https://doi.org/10.1021/acsaem.2c02787\">10.1021/acsaem.2c02787</a>.","chicago":"Kovačič, Sebastijan, Bettina Schafzahl, Nadejda B. Matsko, Katharina Gruber, Martin Schmuck, Stefan Koller, Stefan Alexander Freunberger, and Christian Slugovc. “Carbon Foams via Ring-Opening Metathesis Polymerization of Emulsion Templates: A Facile Method to Make Carbon Current Collectors for Battery Applications.” <i>ACS Applied Energy Materials</i>. American Chemical Society, 2022. <a href=\"https://doi.org/10.1021/acsaem.2c02787\">https://doi.org/10.1021/acsaem.2c02787</a>.","ieee":"S. Kovačič <i>et al.</i>, “Carbon foams via ring-opening metathesis polymerization of emulsion templates: A facile method to make carbon current collectors for battery applications,” <i>ACS Applied Energy Materials</i>, vol. 5, no. 11. American Chemical Society, pp. 14381–14390, 2022.","apa":"Kovačič, S., Schafzahl, B., Matsko, N. B., Gruber, K., Schmuck, M., Koller, S., … Slugovc, C. (2022). Carbon foams via ring-opening metathesis polymerization of emulsion templates: A facile method to make carbon current collectors for battery applications. <i>ACS Applied Energy Materials</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsaem.2c02787\">https://doi.org/10.1021/acsaem.2c02787</a>"},"publication_status":"published","oa_version":"Published Version","quality_controlled":"1","acknowledgement":"S.K. acknowledges the financial support from the Slovenian Research Agency (grants P1-0021, P2-0150). Support by Graz University of Technology (LP-03 – Porous Materials@Work) and from VARTA Innovation GmbH is kindly acknowledged. We thank Umicore for providing the initiator and Matjaž Mazaj (National Institute of Chemistry, Ljubljana) and Karel Jerabek (Czech Academy of Sciences) for measurements and fruitful discussions. S.A.F. is indebted to the Austrian Federal Ministry of Science, Research and Economy; the Austrian Research Promotion Agency (Grant No. 845364); and ISTA for support.","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","publication_identifier":{"issn":["2574-0962"]},"_id":"12227","article_processing_charge":"No","date_updated":"2023-08-04T09:27:32Z","volume":5,"oa":1,"title":"Carbon foams via ring-opening metathesis polymerization of emulsion templates: A facile method to make carbon current collectors for battery applications","external_id":{"isi":["000875635900001"]},"doi":"10.1021/acsaem.2c02787","year":"2022","ddc":["540"],"isi":1,"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"status":"public","intvolume":"         5","type":"journal_article","day":"16","file_date_updated":"2023-01-27T09:09:15Z","page":"14381-14390","publication":"ACS Applied Energy Materials","issue":"11","language":[{"iso":"eng"}],"scopus_import":"1","publisher":"American Chemical Society","date_published":"2022-10-16T00:00:00Z","article_type":"original","month":"10","file":[{"date_created":"2023-01-27T09:09:15Z","checksum":"572d15c250ab83d44f4e2c3aeb5f7388","file_name":"2022_AppliedEnergyMaterials_Kovacic.pdf","file_size":13105589,"date_updated":"2023-01-27T09:09:15Z","access_level":"open_access","success":1,"creator":"dernst","file_id":"12420","content_type":"application/pdf","relation":"main_file"}],"date_created":"2023-01-16T09:48:53Z","department":[{"_id":"StFr"}],"has_accepted_license":"1"},{"department":[{"_id":"FrLo"}],"date_created":"2023-08-21T12:19:30Z","article_type":"original","date_published":"2021-05-01T00:00:00Z","month":"05","language":[{"iso":"eng"}],"scopus_import":"1","publisher":"Institute of Electrical and Electronics Engineers","page":"612-634","publication":"Proceedings of the IEEE","issue":"5","type":"journal_article","day":"01","status":"public","intvolume":"       109","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1109/JPROC.2021.3058954"}],"year":"2021","doi":"10.1109/jproc.2021.3058954","external_id":{"arxiv":["2102.11107"]},"title":"Toward causal representation learning","article_processing_charge":"No","oa":1,"volume":109,"date_updated":"2023-09-11T11:43:35Z","arxiv":1,"oa_version":"Published Version","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"issn":["0018-9219"],"eissn":["1558-2256"]},"extern":"1","_id":"14117","citation":{"ama":"Scholkopf B, Locatello F, Bauer S, et al. Toward causal representation learning. <i>Proceedings of the IEEE</i>. 2021;109(5):612-634. doi:<a href=\"https://doi.org/10.1109/jproc.2021.3058954\">10.1109/jproc.2021.3058954</a>","mla":"Scholkopf, Bernhard, et al. “Toward Causal Representation Learning.” <i>Proceedings of the IEEE</i>, vol. 109, no. 5, Institute of Electrical and Electronics Engineers, 2021, pp. 612–34, doi:<a href=\"https://doi.org/10.1109/jproc.2021.3058954\">10.1109/jproc.2021.3058954</a>.","ista":"Scholkopf B, Locatello F, Bauer S, Ke NR, Kalchbrenner N, Goyal A, Bengio Y. 2021. Toward causal representation learning. Proceedings of the IEEE. 109(5), 612–634.","short":"B. Scholkopf, F. Locatello, S. Bauer, N.R. Ke, N. Kalchbrenner, A. Goyal, Y. Bengio, Proceedings of the IEEE 109 (2021) 612–634.","apa":"Scholkopf, B., Locatello, F., Bauer, S., Ke, N. R., Kalchbrenner, N., Goyal, A., &#38; Bengio, Y. (2021). Toward causal representation learning. <i>Proceedings of the IEEE</i>. Institute of Electrical and Electronics Engineers. <a href=\"https://doi.org/10.1109/jproc.2021.3058954\">https://doi.org/10.1109/jproc.2021.3058954</a>","ieee":"B. Scholkopf <i>et al.</i>, “Toward causal representation learning,” <i>Proceedings of the IEEE</i>, vol. 109, no. 5. Institute of Electrical and Electronics Engineers, pp. 612–634, 2021.","chicago":"Scholkopf, Bernhard, Francesco Locatello, Stefan Bauer, Nan Rosemary Ke, Nal Kalchbrenner, Anirudh Goyal, and Yoshua Bengio. “Toward Causal Representation Learning.” <i>Proceedings of the IEEE</i>. Institute of Electrical and Electronics Engineers, 2021. <a href=\"https://doi.org/10.1109/jproc.2021.3058954\">https://doi.org/10.1109/jproc.2021.3058954</a>."},"publication_status":"published","keyword":["Electrical and Electronic Engineering"],"author":[{"last_name":"Scholkopf","full_name":"Scholkopf, Bernhard","first_name":"Bernhard"},{"first_name":"Francesco","full_name":"Locatello, Francesco","last_name":"Locatello","orcid":"0000-0002-4850-0683","id":"26cfd52f-2483-11ee-8040-88983bcc06d4"},{"first_name":"Stefan","last_name":"Bauer","full_name":"Bauer, Stefan"},{"full_name":"Ke, Nan Rosemary","last_name":"Ke","first_name":"Nan Rosemary"},{"first_name":"Nal","full_name":"Kalchbrenner, Nal","last_name":"Kalchbrenner"},{"last_name":"Goyal","full_name":"Goyal, Anirudh","first_name":"Anirudh"},{"full_name":"Bengio, Yoshua","last_name":"Bengio","first_name":"Yoshua"}],"abstract":[{"text":"The two fields of machine learning and graphical causality arose and are developed separately. However, there is, now, cross-pollination and increasing interest in both fields to benefit from the advances of the other. In this article, we review fundamental concepts of causal inference and relate them to crucial open problems of machine learning, including transfer and generalization, thereby assaying how causality can contribute to modern machine learning research. This also applies in the opposite direction: we note that most work in causality starts from the premise that the causal variables are given. A central problem for AI and causality is, thus, causal representation learning, that is, the discovery of high-level causal variables from low-level observations. Finally, we delineate some implications of causality for machine learning and propose key research areas at the intersection of both communities.","lang":"eng"}]},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"None","quality_controlled":"1","pmid":1,"_id":"13367","publication_identifier":{"issn":["1748-3387"],"eissn":["1748-3395"]},"extern":"1","volume":15,"date_updated":"2023-08-07T10:29:06Z","article_processing_charge":"No","keyword":["Electrical and Electronic Engineering","Condensed Matter Physics","General Materials Science","Biomedical Engineering","Atomic and Molecular Physics","and Optics","Bioengineering"],"author":[{"full_name":"Grommet, Angela B.","last_name":"Grommet","first_name":"Angela B."},{"first_name":"Moran","last_name":"Feller","full_name":"Feller, Moran"},{"id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b","last_name":"Klajn","full_name":"Klajn, Rafal","first_name":"Rafal"}],"abstract":[{"lang":"eng","text":"Confining molecules can fundamentally change their chemical and physical properties. Confinement effects are considered instrumental at various stages of the origins of life, and life continues to rely on layers of compartmentalization to maintain an out-of-equilibrium state and efficiently synthesize complex biomolecules under mild conditions. As interest in synthetic confined systems grows, we are realizing that the principles governing reactivity under confinement are the same in abiological systems as they are in nature. In this Review, we categorize the ways in which nanoconfinement effects impact chemical reactivity in synthetic systems. Under nanoconfinement, chemical properties can be modulated to increase reaction rates, enhance selectivity and stabilize reactive species. Confinement effects also lead to changes in physical properties. The fluorescence of light emitters, the colours of dyes and electronic communication between electroactive species can all be tuned under confinement. Within each of these categories, we elucidate design principles and strategies that are widely applicable across a range of confined systems, specifically highlighting examples of different nanocompartments that influence reactivity in similar ways."}],"publication_status":"published","citation":{"chicago":"Grommet, Angela B., Moran Feller, and Rafal Klajn. “Chemical Reactivity under Nanoconfinement.” <i>Nature Nanotechnology</i>. Springer Nature, 2020. <a href=\"https://doi.org/10.1038/s41565-020-0652-2\">https://doi.org/10.1038/s41565-020-0652-2</a>.","apa":"Grommet, A. B., Feller, M., &#38; Klajn, R. (2020). Chemical reactivity under nanoconfinement. <i>Nature Nanotechnology</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41565-020-0652-2\">https://doi.org/10.1038/s41565-020-0652-2</a>","ieee":"A. B. Grommet, M. Feller, and R. Klajn, “Chemical reactivity under nanoconfinement,” <i>Nature Nanotechnology</i>, vol. 15. Springer Nature, pp. 256–271, 2020.","short":"A.B. Grommet, M. Feller, R. Klajn, Nature Nanotechnology 15 (2020) 256–271.","ista":"Grommet AB, Feller M, Klajn R. 2020. Chemical reactivity under nanoconfinement. Nature Nanotechnology. 15, 256–271.","ama":"Grommet AB, Feller M, Klajn R. Chemical reactivity under nanoconfinement. <i>Nature Nanotechnology</i>. 2020;15:256-271. doi:<a href=\"https://doi.org/10.1038/s41565-020-0652-2\">10.1038/s41565-020-0652-2</a>","mla":"Grommet, Angela B., et al. “Chemical Reactivity under Nanoconfinement.” <i>Nature Nanotechnology</i>, vol. 15, Springer Nature, 2020, pp. 256–71, doi:<a href=\"https://doi.org/10.1038/s41565-020-0652-2\">10.1038/s41565-020-0652-2</a>."},"title":"Chemical reactivity under nanoconfinement","external_id":{"pmid":["32303705"]},"year":"2020","doi":"10.1038/s41565-020-0652-2","page":"256-271","publication":"Nature Nanotechnology","status":"public","intvolume":"        15","type":"journal_article","day":"17","date_created":"2023-08-01T09:37:39Z","language":[{"iso":"eng"}],"publisher":"Springer Nature","scopus_import":"1","date_published":"2020-04-17T00:00:00Z","article_type":"original","month":"04"},{"publication_identifier":{"issn":["1748-3387"],"eissn":["1748-3395"]},"extern":"1","pmid":1,"_id":"13392","quality_controlled":"1","oa_version":"None","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","date_updated":"2023-08-07T12:55:46Z","volume":11,"abstract":[{"text":"The chemical behaviour of molecules can be significantly modified by confinement to volumes comparable to the dimensions of the molecules. Although such confined spaces can be found in various nanostructured materials, such as zeolites, nanoporous organic frameworks and colloidal nanocrystal assemblies, the slow diffusion of molecules in and out of these materials has greatly hampered studying the effect of confinement on their physicochemical properties. Here, we show that this diffusion limitation can be overcome by reversibly creating and destroying confined environments by means of ultraviolet and visible light irradiation. We use colloidal nanocrystals functionalized with light-responsive ligands that readily self-assemble and trap various molecules from the surrounding bulk solution. Once trapped, these molecules can undergo chemical reactions with increased rates and with stereoselectivities significantly different from those in bulk solution. Illumination with visible light disassembles these nanoflasks, releasing the product in solution and thereby establishes a catalytic cycle. These dynamic nanoflasks can be useful for studying chemical reactivities in confined environments and for synthesizing molecules that are otherwise hard to achieve in bulk solution.","lang":"eng"}],"keyword":["Electrical and Electronic Engineering","Condensed Matter Physics","General Materials Science","Biomedical Engineering","Atomic and Molecular Physics","and Optics","Bioengineering"],"author":[{"full_name":"Zhao, Hui","last_name":"Zhao","first_name":"Hui"},{"first_name":"Soumyo","last_name":"Sen","full_name":"Sen, Soumyo"},{"first_name":"T.","full_name":"Udayabhaskararao, T.","last_name":"Udayabhaskararao"},{"first_name":"Michał","last_name":"Sawczyk","full_name":"Sawczyk, Michał"},{"last_name":"Kučanda","full_name":"Kučanda, Kristina","first_name":"Kristina"},{"full_name":"Manna, Debasish","last_name":"Manna","first_name":"Debasish"},{"first_name":"Pintu K.","last_name":"Kundu","full_name":"Kundu, Pintu K."},{"first_name":"Ji-Woong","full_name":"Lee, Ji-Woong","last_name":"Lee"},{"first_name":"Petr","full_name":"Král, Petr","last_name":"Král"},{"first_name":"Rafal","last_name":"Klajn","full_name":"Klajn, Rafal","id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b"}],"citation":{"mla":"Zhao, Hui, et al. “Reversible Trapping and Reaction Acceleration within Dynamically Self-Assembling Nanoflasks.” <i>Nature Nanotechnology</i>, vol. 11, Springer Nature, 2015, pp. 82–88, doi:<a href=\"https://doi.org/10.1038/nnano.2015.256\">10.1038/nnano.2015.256</a>.","ama":"Zhao H, Sen S, Udayabhaskararao T, et al. Reversible trapping and reaction acceleration within dynamically self-assembling nanoflasks. <i>Nature Nanotechnology</i>. 2015;11:82-88. doi:<a href=\"https://doi.org/10.1038/nnano.2015.256\">10.1038/nnano.2015.256</a>","short":"H. Zhao, S. Sen, T. Udayabhaskararao, M. Sawczyk, K. Kučanda, D. Manna, P.K. Kundu, J.-W. Lee, P. Král, R. Klajn, Nature Nanotechnology 11 (2015) 82–88.","ista":"Zhao H, Sen S, Udayabhaskararao T, Sawczyk M, Kučanda K, Manna D, Kundu PK, Lee J-W, Král P, Klajn R. 2015. Reversible trapping and reaction acceleration within dynamically self-assembling nanoflasks. Nature Nanotechnology. 11, 82–88.","ieee":"H. Zhao <i>et al.</i>, “Reversible trapping and reaction acceleration within dynamically self-assembling nanoflasks,” <i>Nature Nanotechnology</i>, vol. 11. Springer Nature, pp. 82–88, 2015.","apa":"Zhao, H., Sen, S., Udayabhaskararao, T., Sawczyk, M., Kučanda, K., Manna, D., … Klajn, R. (2015). Reversible trapping and reaction acceleration within dynamically self-assembling nanoflasks. <i>Nature Nanotechnology</i>. Springer Nature. <a href=\"https://doi.org/10.1038/nnano.2015.256\">https://doi.org/10.1038/nnano.2015.256</a>","chicago":"Zhao, Hui, Soumyo Sen, T. Udayabhaskararao, Michał Sawczyk, Kristina Kučanda, Debasish Manna, Pintu K. Kundu, Ji-Woong Lee, Petr Král, and Rafal Klajn. “Reversible Trapping and Reaction Acceleration within Dynamically Self-Assembling Nanoflasks.” <i>Nature Nanotechnology</i>. Springer Nature, 2015. <a href=\"https://doi.org/10.1038/nnano.2015.256\">https://doi.org/10.1038/nnano.2015.256</a>."},"publication_status":"published","external_id":{"pmid":["26595335"]},"title":"Reversible trapping and reaction acceleration within dynamically self-assembling nanoflasks","year":"2015","doi":"10.1038/nnano.2015.256","publication":"Nature Nanotechnology","page":"82-88","intvolume":"        11","status":"public","day":"23","type":"journal_article","date_created":"2023-08-01T09:44:04Z","scopus_import":"1","publisher":"Springer Nature","language":[{"iso":"eng"}],"month":"11","date_published":"2015-11-23T00:00:00Z","article_type":"original"}]