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Liquid Gripper
In article number 2100274, Liang Hu, Yen Wei, Jing Liu, and co‐workers present a magnetic liquid gripper based on a metallic ferrofluid that enables intimate contact with arbitrarily shaped objects and then generates a strong adhesion force upon solidification, which can be reversibly eliminated by moderate melting. Through coupling the magnetism of metallic ferrofluid and switchable...
Magnetic fields enable dexterous, precise, and real‐time control of ferromagnetic materials. However, most materials, including glasses, organics, and metals, are nonmagnetic and often do not respond to a magnetic field. Here, a transitional ferrofluid (TF) made by embedding magnetic iron particles into pure gallium through the treatment of highly concentrated HCl solutions, as well as its switchable...
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