Frog tongue-inspired wettable microfibers for particles capture  

青蛙舌头启发的浸润性微纤维的构建及其颗粒捕获应用

作　　者：Jiahui Guo Lingyu Sun Han Zhang Yuanjin Zhao 郭佳慧;孙灵钰;张涵;赵远锦

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]Shenzhen Research Institute,Southeast University,Shenzhen 518071,China [3]Chemistry and Biomedicine Innovation Center,ChemBioMed Interdisciplinary Research Center,Nanjing University,Nanjing 210023,China

出　　处：《Science Bulletin》2025年第3期383-389,共7页科学通报(英文版)

基　　金：supported by the National Key Research and Development Program of China(2020YFA0908200);the National Natural Science Foundation of China(T2225003,52073060 and 61927805);Guangdong Basic and Applied Basic Research Foundation(2021B1515120054);Shenzhen Science and Technology Program(JCYj20210324133214038).

摘　　要：Fibers have been of great significance in our daily lives,especially in the industrial production of masks.Research in this area has been focused on developing microfibers with superior functions to enhance the filtration performances of the masks.Herein,inspired by the frog’s predation mechanism using its tongues to swiftly grab flying insects,we propose novel porous wettable microfibers from microfluidics to efficiently capture particles in the air for filtration.Upon pre-dispersing LP emulsions into polyurethane(PU),porous microfibers dispersed with oil droplets could be continuously spun from a co-flow microfluidic device based on the quick phase inversion of PU.To design an optimal system with frog-tongue-like interfacial adhesion properties,the wettability performances of the porous microfibers are investigated under full,partial,and no oil coverage conditions.When implemented in a mask,the 3D patterned networks based on the frog-tongue-inspired microfibers have been proven with remarkable particle capture performances while maintaining good air permeability.Based on these features,we believe that frog-tongue-inspired microfibers and their derived masks are of practical significance in multiple applications.

关 键 词：BIOINSPIRED Microfluidics MICROFIBER WETTABILITY Mask 

分 类 号：F42[经济管理—产业经济]