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Article: From Strong Dichroic Nanomotor to Polarotactic Microswimmer

TitleFrom Strong Dichroic Nanomotor to Polarotactic Microswimmer
Authors
Keywordsdichroism
microswimmers
nanomotors
polarotaxis
Sb2Se3
Issue Date2019
PublisherWiley - VCH Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/publish/en/journals/alphabeticIndex/2089
Citation
Advanced Materials, 2019, v. 31 n. 48, p. article no. 1903329 How to Cite?
AbstractLight‐driven micro/nanomotors are promising candidates for long‐envisioned next‐generation nanorobotics for targeted drug delivery, noninvasive surgery, nanofabrication, and beyond. To achieve these fantastic applications, effective control of the micro/nanomotor is essential. Light has been proved as the most versatile method for microswimmer manipulation, while the light propagation direction, intensity, and wavelength have been explored as controlling signals for light‐responsive nanomotors. Here, the controlling method is expanded to the polarization state of the light, and a nanomotor with a significant dichroic ratio is demonstrated. Due to the anisotropic crystal structure, light polarized parallel to the Sb2Se3 nanowires is preferentially absorbed. The core–shell Sb2Se3/ZnO nanomotor exhibits strong dichroic swimming behavior: the swimming speed is ≈3 times faster when illuminated with parallel polarized light than perpendicular polarized light. Furthermore, by incorporating two cross‐aligned dichroic nanomotors, a polarotactic artificial microswimmer is achieved, which can be navigated by controlling the polarization direction of the incident light. Compared to the well‐studied light‐driven rotary motors based on optical tweezers, this dichroic microswimmer offers eight orders of magnitude light‐intensity reduction, which may enable large‐scale nanomanipulation as well as other heat‐sensitive applications.
Persistent Identifierhttp://hdl.handle.net/10722/280096
ISSN
2017 Impact Factor: 21.95
2015 SCImago Journal Rankings: 9.021

 

DC FieldValueLanguage
dc.contributor.authorZhan, X-
dc.contributor.authorZheng, J-
dc.contributor.authorZhao, Y-
dc.contributor.authorZhu, B-
dc.contributor.authorCheng, R-
dc.contributor.authorWang, J-
dc.contributor.authorLiu, J-
dc.contributor.authorTang, J-
dc.contributor.authorTang, J-
dc.date.accessioned2020-01-06T02:00:54Z-
dc.date.available2020-01-06T02:00:54Z-
dc.date.issued2019-
dc.identifier.citationAdvanced Materials, 2019, v. 31 n. 48, p. article no. 1903329-
dc.identifier.issn0935-9648-
dc.identifier.urihttp://hdl.handle.net/10722/280096-
dc.description.abstractLight‐driven micro/nanomotors are promising candidates for long‐envisioned next‐generation nanorobotics for targeted drug delivery, noninvasive surgery, nanofabrication, and beyond. To achieve these fantastic applications, effective control of the micro/nanomotor is essential. Light has been proved as the most versatile method for microswimmer manipulation, while the light propagation direction, intensity, and wavelength have been explored as controlling signals for light‐responsive nanomotors. Here, the controlling method is expanded to the polarization state of the light, and a nanomotor with a significant dichroic ratio is demonstrated. Due to the anisotropic crystal structure, light polarized parallel to the Sb2Se3 nanowires is preferentially absorbed. The core–shell Sb2Se3/ZnO nanomotor exhibits strong dichroic swimming behavior: the swimming speed is ≈3 times faster when illuminated with parallel polarized light than perpendicular polarized light. Furthermore, by incorporating two cross‐aligned dichroic nanomotors, a polarotactic artificial microswimmer is achieved, which can be navigated by controlling the polarization direction of the incident light. Compared to the well‐studied light‐driven rotary motors based on optical tweezers, this dichroic microswimmer offers eight orders of magnitude light‐intensity reduction, which may enable large‐scale nanomanipulation as well as other heat‐sensitive applications.-
dc.languageeng-
dc.publisherWiley - VCH Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/publish/en/journals/alphabeticIndex/2089-
dc.relation.ispartofAdvanced Materials-
dc.rightsThis is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.-
dc.subjectdichroism-
dc.subjectmicroswimmers-
dc.subjectnanomotors-
dc.subjectpolarotaxis-
dc.subjectSb2Se3-
dc.titleFrom Strong Dichroic Nanomotor to Polarotactic Microswimmer-
dc.typeArticle-
dc.identifier.emailZhan, X: zhanxj@HKUCC-COM.hku.hk-
dc.identifier.emailZheng, J: zjing@hku.hk-
dc.identifier.emailZhu, B: zhubair@connect.hku.hk-
dc.identifier.emailWang, J: jizhuang@hku.hk-
dc.identifier.emailTang, J: jinyao@hku.hk-
dc.identifier.authorityTang, J=rp01677-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/adma.201903329-
dc.identifier.pmid31588643-
dc.identifier.scopuseid_2-s2.0-85073959574-
dc.identifier.hkuros308881-
dc.identifier.volume31-
dc.identifier.issue48-
dc.identifier.spagearticle no. 1903329-
dc.identifier.epagearticle no. 1903329-
dc.publisher.placeGermany-

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