Tactile sensors with distinctive ability to imitate skins have attracted considerable attention from researches for applications in a variety of sensing fields.Here,inspired by the tentacles of jellyfish,biomimetic hy...Tactile sensors with distinctive ability to imitate skins have attracted considerable attention from researches for applications in a variety of sensing fields.Here,inspired by the tentacles of jellyfish,biomimetic hydrogel microfibers were fabricated to be implanted with discrete structural color microsphere units for spatial tactile sensing.By employing a microfluidic spinning technology,the generated microfibers were with high microsphere encapsulation features and controllable morphologies because of the density match of microspheres and the pre-hydrogel solution.In addition,benefitting from the easy manipulation of the microfluidics,microfibers implanted with different structural color microspheres could also be realized.It was demonstrated that the resultant microfibers would show synchronous shifts of photonic bandgaps as well as structural color when a local force like pressure or tension was applied to the microsphere part.Based on the localization of finger bending experiments,the practical values of the bioinspired microfibers have also been proved as spatial tactile sensors.Thus,it is believed that the proposed bioinspired hydrogel microfibers are greatly significant in diverse sensing application fields.展开更多
基金supported by the National Key Research and Development Program of China(2020YFA0908200)the Strategic Priority Research Program of the Chinese Academy of Science(XDA16021101)+2 种基金the National Natural Science Foundation of China(52073060 and 61927805)Guangdong Basic and Applied Basic Research Foundation(2021B1515120054)the Shenzhen Fundamental Research Program(JCYJ20190813152616459 and JCYJ20210324133214038).
文摘Tactile sensors with distinctive ability to imitate skins have attracted considerable attention from researches for applications in a variety of sensing fields.Here,inspired by the tentacles of jellyfish,biomimetic hydrogel microfibers were fabricated to be implanted with discrete structural color microsphere units for spatial tactile sensing.By employing a microfluidic spinning technology,the generated microfibers were with high microsphere encapsulation features and controllable morphologies because of the density match of microspheres and the pre-hydrogel solution.In addition,benefitting from the easy manipulation of the microfluidics,microfibers implanted with different structural color microspheres could also be realized.It was demonstrated that the resultant microfibers would show synchronous shifts of photonic bandgaps as well as structural color when a local force like pressure or tension was applied to the microsphere part.Based on the localization of finger bending experiments,the practical values of the bioinspired microfibers have also been proved as spatial tactile sensors.Thus,it is believed that the proposed bioinspired hydrogel microfibers are greatly significant in diverse sensing application fields.
