蜂群(蜜蜂)
捕食者
捕食
纳米技术
仿生学
生物系统
材料科学
生态学
生物
作者
Fangzhi Mou,Xiaofeng Li,Qi Xie,Jianhua Zhang,Kang Xiong,Leilei Xu,Jianguo Guan
出处
期刊:ACS Nano
[American Chemical Society]
日期:2019-12-20
卷期号:14 (1): 406-414
被引量:84
标识
DOI:10.1021/acsnano.9b05996
摘要
Inspired by chasing–escaping behaviors of predator and swarming prey in nature, here we demonstrate a concept to create active micromotor systems from two species of passive microparticles with biomimetic predator–prey interactions. In this concept, the biomimetic predator–prey interactions are established in a binary particle system comprising the diffusiophoretic attractive microparticles (prey particles) and the diffusiophoretic repulsive ones (predator particles). In the absence of additional chemical fuels and external fields, the predator particles are attracted by and constantly chase the swarming prey particles, which, in response, escape from the former and show dynamic group reconfigurations because of the local repulsion. Based on this concept, various synthetic active micromotor systems have been demonstrated, including active ZnO–TiO2, Ag3PO4–TiO2, and ZnO–AgBr micromotor systems. As the predator and prey particles are powered by each other through the biomimetic predator–prey interactions, the concept proposed here provides an advanced method to develop not only a class of single micromotors powered by passive particles or “solid fuels” but also micromotor swarms capable of manipulating “moving cargo”. In addition, it also illustrates a proof-of-concept implementation of intelligent micro/nanomotor systems composed of heterogeneous individuals with complementary or cooperative functions.
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