Optomechanically Actuated Microcilia for Locally Reconfigurable Surfaces.,Advanced Materials

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Optomechanically Actuated Microcilia for Locally Reconfigurable Surfaces.
Advanced Materials ( IF 27.4 ) Pub Date : 2020-08-30 , DOI: 10.1002/adma.202004147
Meng Li ₁ , Taehoon Kim ₁ , Giulia Guidetti ₁ , Yu Wang ₁ , Fiorenzo G Omenetto _{1,

2,

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Affiliation

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.

中文翻译：

用于局部可重构表面的光机械致动微纤毛。

人工微纤毛结构已显示出在各种应用（例如微流控设备和仿生微型机器人）中集成执行器的潜力。在实现纤毛驱动的多种可能性中，磁场具有快速响应和无线操作的优势，尽管由于其连续分布而难以实现局部驱动，但仍提供了机会。在这项工作中，提出了一种高纵横比（> 8）的弹性体，磁响应微纤毛阵列，该阵列通过结合使用光和磁场来实现无线的局部驱动。微纤毛阵列可以响应于外部磁场而移动，并且可以通过对特定区域的定向照明来局部地致动。

更新日期：2020-10-07

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