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The ability to lower the interfacial tension of the metal under oxidative conditions (∼1 V) in electrolyte provides opportunities to manipulate the shape of the metal. (a) Injection of the metal into a capillary. (b) Controlling the shape of EGaIn in an open channel. (c) Forming a liquid metal wire by pumping the metal out of a tube. Image reproduced with permission from ref (116). Copyright 2014 Proceedings of the National Academy of Science.
