Light control of droplets on photo-induced charged surfaces

作     者：Fang Wang Meijin Liu Cong Liu Chao Huang Lidong Zhang Anyang Cui Zhigao Hu Xuemin Du Fang Wang;Meijin Liu;Cong Liu;Chao Huang;Lidong Zhang;Anyang Cui;Zhigao Hu;Xuemin Du

作者机构：Institute of Biomedical and Health EngineeringShenzhen Institute of Advanced TechnologyChinese Academy of Sciences University of Chinese Academy of Sciences Department of Chemistry and Molecular Engineering East China Normal University Technical Center for Multifunctional Magneto-Optical Spectroscopy(Shanghai)Engineering Research Center of Nanophotonics and Advanced Instrument(Ministry of Education)Department of Physics School of Physics and Electronic Science East China Normal University 

出 版 物：《National Science Review》 (国家科学评论(英文版))

年 卷 期：2023年第10卷第1期

页      面：259-267页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070302[理学-分析化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：supported by the National Key R&D Program of China (2017YFA0701303) the National Natural Science Foundation of China (52022102) the Youth Innovation Promotion Association of the Chinese Academy of Sciences(CAS)(2019353) the Guangdong Regional Joint Fund-Key Project (2021B1515120076) the CAS Key Laboratory of Health Informatics,the Shenzhen Institutes of Advanced Technology (2011DP173015) the Fundamental Research Program of Shenzhen (JCYJ20180507182051636 and KQJSCX20180330170232019) 

主　　题：light control droplet manipulation smart surface liquid metal ferroelectric 

摘      要：The manipulation of droplets plays a vital role in fundamental research and practical applications,from chemical reactions to *** an intriguing and active format,light control of droplets,typically induced by photochemistry,photomechanics,light-induced Marangoni effects or light-induced electric fields,enables remote and contactless control with remarkable spatial and temporal ***,current light control of droplets suffers from poor performance and limited *** we develop a new superamphiphobic material that integrates the dual merits of light and electric field by rationally preparing liquid metal particles/poly(vinylidene fluoride-trifluoroethylene) polymer composites with photo-induced charge generation capability in real time,enabling light control of droplets on the basis of photo-induced dielectrophoretic *** demonstrate that this photo-induced charged surface(PICS)imparts a new paradigm for controllable droplet motion,including high average velocity(～35.9 mm s-1),unlimited distance,multimode motions(***,backward and rotation) and single-to-multiple droplet manipulation,which are otherwise unachievable in conventional *** further extend light control of droplets to robotic and bio-applications,including transporting a solid cargo in a closed tube,crossing a tiny tunnel,avoiding obstacles,sensing the changing environment via naked-eye color shift,preparing hydrogel beads,transporting living cells and reliable *** PICS not only provides insight into the development of new smart interface materials and microfluidics,but also brings new possibilities for chemical and biomedical applications.