气候变化领域集成服务门户(CCPortal): Bioinspired micro/nanomotor with visible light energy-dependent forward, reverse, reciprocating, and spinning schooling motion

CCPortal

DOI	10.1073/pnas.2104481118
	Bioinspired micro/nanomotor with visible light energy-dependent forward, reverse, reciprocating, and spinning schooling motion
	Tong J.; Wang D.; Liu Y.; Lou X.; Jiang J.; Dong B.; Dong R.; Yang M.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:42
英文摘要	In nature, microorganisms could sense the intensity of the incident visible light and exhibit bidirectional (positive or negative) phototaxis. However, it is still challenging to achieve the similar biomimetic phototaxis for the artificial micro/nanomotor (MNM) counterparts with the size from a few nanometers to a few micrometers. In this work, we report a fuel-free carbon nitride (C3N4)/polypyrrole nanoparticle (PPyNP)-based smart MNM operating in water, whose behavior resembles that of the phototactic microorganism. The MNM moves toward the visible light source under low illumination and away from it under high irradiation, which relies on the competitive interplay between the light-induced self-diffusiophoresis and self-thermophoresis mechanisms concurrently integrated into the MNM. Interestingly, the competition between these two mechanisms leads to a collective bidirectional phototaxis of an ensemble of MNMs under uniform illuminations and a spinning schooling behavior under a nonuniform light, both of which can be finely controllable by visible light energy. Our results provide important insights into the design of the artificial counterpart of the phototactic microorganism with sophisticated motion behaviors for diverse applications. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Collective behavior; Light-driven micromotor; Phototaxis; Self-diffusiophoresis; Self-thermophoresis
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238337
作者单位	Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Soochow University, Jiangsu, Suzhou, 215123, China; Beijing National Laboratory for Condensed Matter Physics, Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; School of Chemistry, South China Normal University, Guangzhou, 510006, China; Songshan Lake Materials Laboratory, Guangdong, Dongguan, 523808, China
推荐引用方式 GB/T 7714	Tong J.,Wang D.,Liu Y.,et al. Bioinspired micro/nanomotor with visible light energy-dependent forward, reverse, reciprocating, and spinning schooling motion[J],2021,118(42).
APA	Tong J..,Wang D..,Liu Y..,Lou X..,Jiang J..,...&Yang M..(2021).Bioinspired micro/nanomotor with visible light energy-dependent forward, reverse, reciprocating, and spinning schooling motion.Proceedings of the National Academy of Sciences of the United States of America,118(42).
MLA	Tong J.,et al."Bioinspired micro/nanomotor with visible light energy-dependent forward, reverse, reciprocating, and spinning schooling motion".Proceedings of the National Academy of Sciences of the United States of America 118.42(2021).