Hybrid Zwitterionic Hydrogels with Encoded Differential Swelling and Programmed Deformation for Small-Scale Robotics.

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Tác giả: Amirreza Aghakhani, Negin Bouzari, Sayan Ganguly, Junting Huang, Tizazu H Mekonnen, Rasool Nasseri, Hamed Shahsavan, Xiaowu Shirley Tang

Ngôn ngữ: eng

Ký hiệu phân loại: 620.1 Engineering mechanics and materials

Thông tin xuất bản: Germany : Small methods , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 719595

Stimuli-responsive shape-morphing hydrogels with self-healing and tunable physiochemical properties are excellent candidates for functional building blocks of untethered small-scale soft robots. With mechanical properties similar to soft organs and tissues, such robots enable minimally invasive medical procedures, such as cargo/cell transportation. In this work, responsive hydrogels based on zwitterionic/acrylate chemistry with self-healing and stimuli-responsiveness are synthesized. Such hydrogels are then judiciously cut and pasted to form hybrid constructs with predetermined swelling and elastic anisotropy. This method is used to program hydrogel constructs with predetermined 2D-to-3D deformation upon exposure to different environmental ionic strengths. Untethered soft robotic functionalities are demonstrated, such as actuation, magnetic locomotion, and targeted transport of soft and light cargo in flooded media. The proposed hydrogel expands the repertoire of functional materials for fabricating small-scale soft robots.
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