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Article: Self-regulated underwater phototaxis of a photoresponsive hydrogel-based phototactic vehicle

TitleSelf-regulated underwater phototaxis of a photoresponsive hydrogel-based phototactic vehicle
Authors
Issue Date21-Aug-2023
PublisherNature Research
Citation
Nature Nanotechnology, 2023, v. 19, p. 77-84 How to Cite?
Abstract

Incorporating a negative feedback loop in a synthetic material to enable complex self-regulative behaviours akin to living organisms remains a design challenge. Here we show that a hydrogel-based vehicle can follow the directions of photonic illumination with directional regulation inside a constraint-free, fluidic space. By manipulating the customized photothermal nanoparticles and the microscale pores in the polymeric matrix, we achieved strong chemomechanical deformation of the soft material. The vehicle swiftly assumes an optimal pose and creates directional flow around itself, which it follows to achieve robust full-space phototaxis. In addition, this phototaxis enables a series of complex underwater locomotions. We demonstrate that this versatility is generated by the synergy of photothermofluidic interactions resulting in closed-loop self-control and fast reconfigurability. The untethered, electronics-free, ambient-powered hydrogel vehicle manoeuvres through obstacles agilely, following illumination cues of moderate intensities, similar to that of natural sunlight.


Persistent Identifierhttp://hdl.handle.net/10722/338747
ISSN
2023 Impact Factor: 38.1
2023 SCImago Journal Rankings: 14.577
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHou, Guodong-
dc.contributor.authorZhang, Xu-
dc.contributor.authorDu Feihong-
dc.contributor.authorWu, Yadong-
dc.contributor.authorZhang, Xing-
dc.contributor.authorLei, Zhijie-
dc.contributor.authorLu, Wei-
dc.contributor.authorZhang, Feiyu-
dc.contributor.authorYang, Guang-
dc.contributor.authorWang, Huamiao-
dc.contributor.authorLiu, Zhenyu-
dc.contributor.authorWang, Rong-
dc.contributor.authorGe, Qi-
dc.contributor.authorChen, Jiangping-
dc.contributor.authorMeng, Guang-
dc.contributor.authorFang, Nicholas X-
dc.contributor.authorQian, Xiaoshi-
dc.date.accessioned2024-03-11T10:31:14Z-
dc.date.available2024-03-11T10:31:14Z-
dc.date.issued2023-08-21-
dc.identifier.citationNature Nanotechnology, 2023, v. 19, p. 77-84-
dc.identifier.issn1748-3387-
dc.identifier.urihttp://hdl.handle.net/10722/338747-
dc.description.abstract<p>Incorporating a negative feedback loop in a synthetic material to enable complex self-regulative behaviours akin to living organisms remains a design challenge. Here we show that a hydrogel-based vehicle can follow the directions of photonic illumination with directional regulation inside a constraint-free, fluidic space. By manipulating the customized photothermal nanoparticles and the microscale pores in the polymeric matrix, we achieved strong chemomechanical deformation of the soft material. The vehicle swiftly assumes an optimal pose and creates directional flow around itself, which it follows to achieve robust full-space phototaxis. In addition, this phototaxis enables a series of complex underwater locomotions. We demonstrate that this versatility is generated by the synergy of photothermofluidic interactions resulting in closed-loop self-control and fast reconfigurability. The untethered, electronics-free, ambient-powered hydrogel vehicle manoeuvres through obstacles agilely, following illumination cues of moderate intensities, similar to that of natural sunlight.<br></p>-
dc.languageeng-
dc.publisherNature Research-
dc.relation.ispartofNature Nanotechnology-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleSelf-regulated underwater phototaxis of a photoresponsive hydrogel-based phototactic vehicle-
dc.typeArticle-
dc.identifier.doi10.1038/s41565-023-01490-4-
dc.identifier.scopuseid_2-s2.0-85168369819-
dc.identifier.volume19-
dc.identifier.spage77-
dc.identifier.epage84-
dc.identifier.eissn1748-3395-
dc.identifier.isiWOS:001052542300001-
dc.identifier.issnl1748-3387-

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