Optical Pliers: Micrometer-Scale, Light-Driven Tools Grown on Optical Fibers.,Advanced Materials

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Optical Pliers: Micrometer-Scale, Light-Driven Tools Grown on Optical Fibers.
Advanced Materials ( IF 27.4 ) Pub Date : 2020-07-06 , DOI: 10.1002/adma.202002779
Michał Zmyślony ₁ , Klaudia Dradrach ₁ , Jakub Haberko ₂ , Paweł Nałęcz-Jawecki ₁ , Mikołaj Rogóż ₁ , Piotr Wasylczyk ₁

Affiliation

The ability to grip and handle small objects, from sub‐millimeter electronic components to single‐micrometer living cells, is vital for numerous ever‐shrinking technologies. Mechanical grippers, powered by electric, pneumatic, hydraulic or piezoelectric servos, are well suited for the job at larger scales, but their complexity and need for force transmission prevent their miniaturization and remote control in tight spaces. Using liquid crystal elastomer microstructures that can change shape quickly and reversibly in response to light, a light‐powered gripping tool—optical pliers—is built by growing two bending jaws on the tips of optical fibers. By delivering UV light to trigger polymerization via a micrometer‐size fiber core, structures of similar size can be made without resorting to any microfabrication technology, such as laser photolithography. The tool is operated using visible light energy supplied through the fibers, with no force transmission. The elastomer growth technique readily offers micrometer‐scale, remotely controlled functional structures with different modes of actuation as building blocks for the microtoolbox.

中文翻译：

光学钳：在光纤上生长的微米级光驱动工具。

抓握和处理从亚毫米电子组件到单微米活细胞的小物体的能力对于众多不断缩小的技术至关重要。由电动，气动，液压或压电伺服驱动的机械抓手非常适合大规模工作，但其复杂性和对力传递的需求阻止了它们在狭小空间中的小型化和远程控制。使用液晶弹性体微结构，该微结构可以响应光而快速且可逆地改变形状，通过在光纤尖端上生长两个弯曲钳口来构建光动力夹持工具（光学钳）。通过传送紫外线以通过微米级的纤维芯引发聚合，可以制造尺寸相似的结构，而无需借助任何微细加工技术，例如激光光刻。该工具使用通过光纤提供的可见光能量进行操作，而没有力传递。弹性体生长技术很容易提供微米级的，具有不同驱动方式的远程控制功能结构，作为微型工具箱的基础。

更新日期：2020-08-18

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