Light‐Ultrasound Driven Collective “Firework” Behavior of Nanomotors

It is of great interest and big challenge to control the collective behaviors of nanomotors to mimic the aggregation/separation behavior of biological systems. Here, a light‐acoustic combined method is proposed to control the aggregation/separation of artificial nanomotors. It is shown that nanomoto...

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Autores principales: Zhou, Dekai, Gao, Yuan, Yang, Junjie, Li, Yuguang C., Shao, Guangbin, Zhang, Guangyu, Li, Tianlong, Li, Longqiu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6051403/
https://www.ncbi.nlm.nih.gov/pubmed/30027044
http://dx.doi.org/10.1002/advs.201800122
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author Zhou, Dekai
Gao, Yuan
Yang, Junjie
Li, Yuguang C.
Shao, Guangbin
Zhang, Guangyu
Li, Tianlong
Li, Longqiu
author_facet Zhou, Dekai
Gao, Yuan
Yang, Junjie
Li, Yuguang C.
Shao, Guangbin
Zhang, Guangyu
Li, Tianlong
Li, Longqiu
author_sort Zhou, Dekai
collection PubMed
description It is of great interest and big challenge to control the collective behaviors of nanomotors to mimic the aggregation/separation behavior of biological systems. Here, a light‐acoustic combined method is proposed to control the aggregation/separation of artificial nanomotors. It is shown that nanomotors aggregate at the pressure node in acoustic field and afterward present a collective “firework” separation behavior induced by light irradiation. The collective behavior is found to be applicable for metallic materials and polymers even different light wavelengths are used. Physical insights on the collective firework behavior resulting from the change of acoustic streaming caused by optical force are provided. It is found that diffusion velocity and diffusion region of cluster can be controlled by adjusting light intensity and acoustic excitation voltage, and irradiation direction, respectively. This harmless, controllable, and widely applicable method provides new possibilities for groups of nanomachines, drug release, and cargo transport in nanomedicine and nanosensors.
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spelling pubmed-60514032018-07-19 Light‐Ultrasound Driven Collective “Firework” Behavior of Nanomotors Zhou, Dekai Gao, Yuan Yang, Junjie Li, Yuguang C. Shao, Guangbin Zhang, Guangyu Li, Tianlong Li, Longqiu Adv Sci (Weinh) Full Papers It is of great interest and big challenge to control the collective behaviors of nanomotors to mimic the aggregation/separation behavior of biological systems. Here, a light‐acoustic combined method is proposed to control the aggregation/separation of artificial nanomotors. It is shown that nanomotors aggregate at the pressure node in acoustic field and afterward present a collective “firework” separation behavior induced by light irradiation. The collective behavior is found to be applicable for metallic materials and polymers even different light wavelengths are used. Physical insights on the collective firework behavior resulting from the change of acoustic streaming caused by optical force are provided. It is found that diffusion velocity and diffusion region of cluster can be controlled by adjusting light intensity and acoustic excitation voltage, and irradiation direction, respectively. This harmless, controllable, and widely applicable method provides new possibilities for groups of nanomachines, drug release, and cargo transport in nanomedicine and nanosensors. John Wiley and Sons Inc. 2018-05-02 /pmc/articles/PMC6051403/ /pubmed/30027044 http://dx.doi.org/10.1002/advs.201800122 Text en © 2018 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Full Papers
Zhou, Dekai
Gao, Yuan
Yang, Junjie
Li, Yuguang C.
Shao, Guangbin
Zhang, Guangyu
Li, Tianlong
Li, Longqiu
Light‐Ultrasound Driven Collective “Firework” Behavior of Nanomotors
title Light‐Ultrasound Driven Collective “Firework” Behavior of Nanomotors
title_full Light‐Ultrasound Driven Collective “Firework” Behavior of Nanomotors
title_fullStr Light‐Ultrasound Driven Collective “Firework” Behavior of Nanomotors
title_full_unstemmed Light‐Ultrasound Driven Collective “Firework” Behavior of Nanomotors
title_short Light‐Ultrasound Driven Collective “Firework” Behavior of Nanomotors
title_sort light‐ultrasound driven collective “firework” behavior of nanomotors
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6051403/
https://www.ncbi.nlm.nih.gov/pubmed/30027044
http://dx.doi.org/10.1002/advs.201800122
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