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Multifunctional liquid microrobots based on paramagnetic microdroplets
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DOI：10.1016/j.xcrp.2023.101279.png)
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Abstract
En 中文
The liquid robot, an advanced form of the soft robot, can freely trans-form between different morphologies. From the perspective of mate-rials science, difficulty fabricating liquid functional materials hinders the development of liquid robots. Here, we report a paramagnetic -fluid-constructed liquid microrobot (1-1,000 mm) based on paramag-netic microdroplets. The paramagnetism not only allows the scaling down of the liquid robot to microscales but also renders the microro-bots reversible between paramagnetic-ferromagnetic transition upon magnetic field application. Furthermore, the paramagnetism equips these microrobots with on-board imaging and sensing abilities. The combined T1-T2 imaging modes cross-validated the real-time motion of the microrobots. The deformation degrees of these microrobots, which vary based on the structure of their surroundings, is measured by an ultra-low-field atomic magnetometer. The fabrication and char-acterization of these multifunctional paramagnetic liquid microrobots will lay the basis for their in vivo biomedical applications.
Keywords:
SOFT
DESIGN
ROBOT
Journal
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7.3
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2.8K
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1.2W
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