Bio-inspired artificial cilia with magnetic dynamic properties

作     者：Leilei SUN Yongmei ZHENG 

作者机构：Key Laboratory of Bio-lnspired Smart Interfacial Science and Technology of the Ministry of Education School of Chemistry and Environment Beihang University Beijing 100191 China 

出 版 物：《Frontiers of Materials Science》 (材料学前沿（英文版）)

年 卷 期：2015年第9卷第2期

页      面：178-184页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 0702[理学-物理学] 

基　　金：supported by National Research Fund for Fundamental Key Project 国家自然科学基金 国家教育部高等学校博士学科点专项科研基金 and Graduate Student Innovation Practice Foundation of Beihang University 

主　　题：artificial cilia magnetic nanoparticle actuation liquids mixing 

摘      要：Inspired by the structure and properties of natural cilia, we focused on a facile template-free approach to prepare magnetic artificial cilia grown on the substrate （glass, PDMS, or others）. In an applied magnetic field, the cilia formed spontaneously and immediately from magnetic nanoparticles and elastomeric polymer in a liquid solvent by bottom-up self-assembly. The length of prepared cilia could be in the scale of millimeter and reach a high aspect ratio of even over 100. We studied the effect of the magnetic strength applied and the size of nanoparticles to get tunable scale of cilia. The cilia show reversibly bending in an external magnetic field and this bending actuation gave some important functions： to transport macroscopic nonmagnetic materials on the cilia and to mix liquids.