Hsu Jung-Hsuan, Tang Nien-Ting, Hsu Ting-Fang, Lin Shin-Hua, Fang Cai-Yin, Huang Yun-Wen, Yang Hongta
Department of Chemical Engineering, National Chung Hsing University, No. 145, Xingda Road, Taichung 40227, Taiwan.
ACS Appl Mater Interfaces. 2023 Dec 6;15(48):56203-56212. doi: 10.1021/acsami.3c15577. Epub 2023 Nov 27.
Hemimyzon formosanus, a species of ray-finned fish, makes use of crescent-shaped abdominal suckers for adhering to irregular, rough, and slippery gravel in fast-flowing headwaters and minor tributaries. Bioinspired by the adhesion characteristics, two-dimensional non-close-packed colloidal crystals are self-assembled and serve as templates to pattern crescent-shaped shape memory polymer-based nanostructure arrays. By the manipulation of the configuration of nanosuckers through applying common solvent stimulations, the corresponding adhesion performances on glass, sandpaper, or even porcine kidney surfaces can be switched instantaneously and reversibly under ambient conditions. The biomimetic nanostructures indicate possible solutions to a variety of challenges, such as wound nursing, and so on.
台湾间爬岩鳅，一种辐鳍鱼，利用新月形的腹部吸盘附着在湍急源头和小支流中不规则、粗糙且滑溜的砾石上。受其粘附特性的启发，二维非密排胶体晶体自组装并用作模板来构建基于新月形形状记忆聚合物的纳米结构阵列。通过施加常见溶剂刺激来操纵纳米吸盘的构型，在环境条件下，其在玻璃、砂纸甚至猪肾表面的相应粘附性能可瞬间且可逆地切换。这种仿生纳米结构为诸如伤口护理等各种挑战指明了可能的解决方案。
