Bioinspired Surfaces Derived from Acoustic Waves for On-Demand Droplet Manipulations  

作　　者：Zhuhao Wu Lingyu Sun Hanxu Chen Yuanjin Zhao 

机构地区：[1]Department of Rheumatology and Immunology,Nanjing Drum Tower Hospital,School of Biological Science and Medical Engineering,Southeast University,Nanjing 210096,China [2]Oujiang Laboratory(Zhejiang Lab for Regenerative Medicine,Vision and Brain Health),Wenzhou Institute,University of Chinese Academy of Sciences,Wenzhou,Zhejiang 325001,China [3]Chemistry and Biomedicine Innovation Center,Nanjing University,Nanjing 210023,China.

出　　处：《Research》2024年第3期613-620,共8页研究（英文）

基　　金：the National Key Research and Development Program of China (2020YFA0908200);the National Natural Science Foundation of China (T2225003, 52073060, and 81720108022);the Nanjing Medical Science and Technique Development Foundation (ZKX21019);the Clinical Trials from Nanjing Drum Tower Hospital (2022-LCYJ-ZD-01);the Guangdong Basic and Applied Basic Research Foundation (2021B1515120054);the Shenzhen Fundamental Research Program (JCYJ20190813152616459 and JCYJ20210324133214038).

摘　　要：The controllable manipulation and transfer of droplets are fundamental in a wide range of chemical reactions and even life processes. Herein, we present a novel, universal, and straightforward acoustic approach to fabricating biomimetic surfaces for on-demand droplet manipulations like many natural creatures. Based on the capillary waves induced by surface acoustic waves, various polymer films could be deformed into pre-designed structures, such as parallel grooves and grid-like patterns. These structured and functionalized surfaces exhibit impressive ability in droplet transportation and water collection, respectively. Besides these static surfaces, the tunability of acoustics could also endow polymer surfaces with dynamic controllability for droplet manipulations, including programming wettability, mitigating droplet evaporation, and accelerating chemical reactions. Our approach is capable of achieving universal surface manufacturing and droplet manipulation simultaneously, which simplifies the fabrication process and eliminates the need for additional chemical modifications. Thus, we believe that our acoustic-derived surfaces and technologies could provide a unique perspective for various applications, including microreactor integration, biochemical reaction control, tissue engineering, and so on.

关 键 词：STRAIGHT eliminate acoustics 

分 类 号：O35[理学—流体力学]