Reconfigurable artificial microswimmers with internal feedback
dc.contributor.author | Álvarez Francés, Laura | |
dc.contributor.author | Fernández Rodríguez, Miguel Ángel | |
dc.contributor.author | Alegría Loinaz, Angel María ![]() | |
dc.contributor.author | Arrese Igor, Silvia | |
dc.contributor.author | Zhao, K. | |
dc.contributor.author | Kröger, M. | |
dc.contributor.author | Isa, Lucio | |
dc.date.accessioned | 2021-09-20T11:45:38Z | |
dc.date.available | 2021-09-20T11:45:38Z | |
dc.date.issued | 2021-08-06 | |
dc.identifier.citation | Nature Communications 12 : (2021) // Article ID 4762 | es_ES |
dc.identifier.issn | 2041-1723 | |
dc.identifier.uri | http://hdl.handle.net/10810/53113 | |
dc.description.abstract | Self-propelling microparticles are often proposed as synthetic models for biological microswimmers, yet they lack the internally regulated adaptation of their biological counterparts. Conversely, adaptation can be encoded in larger-scale soft-robotic devices but remains elusive to transfer to the colloidal scale. Here, we create responsive microswimmers, powered by electro-hydrodynamic flows, which can adapt their motility via internal reconfiguration. Using sequential capillary assembly, we fabricate deterministic colloidal clusters comprising soft thermo-responsive microgels and light-absorbing particles. Light absorption induces preferential local heating and triggers the volume phase transition of the microgels, leading to an adaptation of the clusters' motility, which is orthogonal to their propulsion scheme. We rationalize this response via the coupling between self-propulsion and variations of particle shape and dielectric properties upon heating. Harnessing such coupling allows for strategies to achieve local dynamical control with simple illumination patterns, revealing exciting opportunities for developing tactic active materials. Changing the propulsion of simple artificial colloidal microswimmers usually proceeds by globally tuning the strength of the driving mechanism. Alvarez et al. implement an independent reconfiguration scheme, bringing small active particles one step closer to adaptive, autonomous behaviour. | es_ES |
dc.description.sponsorship | The authors thank Peter Schurtenberger and Heiko Wolf for insightful discussions, Walter Richtering for providing the microgels, and Philippe Nicollier for assisting with the substrate fabrication. L.I. and L.A. acknowledge financial support from the Swiss National Science Foundation (SNSF) Grant PP00P2-172913/1 and the European Soft Matter Infrastructure (EUSMI) proposal number E190900328. M.K. acknowledges SNCF support through grant 200021L-185052. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Nature | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | volume phase-transition | es_ES |
dc.subject | poly(n-isopropylacrylamide) microgels | es_ES |
dc.subject | active particles | es_ES |
dc.subject | electrophoresis | es_ES |
dc.title | Reconfigurable artificial microswimmers with internal feedback | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.nature.com/articles/s41467-021-25108-2#rightslink | es_ES |
dc.identifier.doi | 10.1038/s41467-021-25108-2 | |
dc.departamentoes | Polímeros y Materiales Avanzados: Física, Química y Tecnología | es_ES |
dc.departamentoeu | Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia | es_ES |
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