ArticleNature communications2025
A tactile gripper on an optical fiber for perception and actuation.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
Optical fibers with integrated robotic microstructures are promising for cutting-edge applications. However, the development of microbots on a fiber system for synergistic sensing and actuation is challenging. Herein, inspired from natural Bobbit worm, we report a tactile gripper-on-a-fiber system that integrates wave spring, planar reflector with a scattering cone and a smart gripper on a single-mode fiber. The wave spring fabricated via two-photon polymerization of SU-8 can convert the applied micro-force into detectable stretching or compression, serving as a Fabry-Perot interferences sensor. Additionally, a pH responsive gripper with SU-8 frames and bovine serum albumin muscles is integrated with the wave spring, forming the tactile gripper-on-a-fiber system. As a proof-of-concept, the tactile gripper-on-a-fiber system was employed for micro-object sorting, flexible micro-block assembly, synergistic prey detection/capture, the measurement of Young's modulus of zebrafish zygotes, and in-situ fetal movement monitoring, revealing great potential in biomedicine, precision manufacturing, minimally invasive and robotic surgery.
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