执行机构
材料科学
磁场
无线
微流控
弹性体
纳米技术
流体学
光电子学
衍射
光学
计算机科学
电气工程
物理
工程类
电信
复合材料
量子力学
作者
Meng Li,Tae-Hoon Kim,Giulia Guidetti,Yushu Wang,Fiorenzo G. Omenetto
标识
DOI:10.1002/adma.202004147
摘要
Abstract Artificial microcilia structures have shown potential to incorporate actuators in various applications such as microfluidic devices and biomimetic microrobots. Among the multiple possibilities to achieve cilia actuation, magnetic fields present an opportunity given their quick response and wireless operation, despite the difficulty in achieving localized actuation because of their continuous distribution. In this work, a high‐aspect‐ratio (>8), elastomeric, magnetically responsive microcilia array is presented that allows for wireless, localized actuation through the combined use of light and magnetic fields. The microcilia array can move in response to an external magnetic field and can be locally actuated by targeted illumination of specific areas. The periodic pattern of the microcilia also diffracts light with varying diffraction efficiency as a function of the applied magnetic field, showing potential for wirelessly controlled adaptive optical elements.
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