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Patterning of the liquid metal via selective wetting. Imbibition-induced wetting of the liquid metal (a) on the line pattern with a width of 1 mm and (b) on a star-shaped pattern. (c,d) Magnified images of the edge of the star-shaped pattern in (b): (c) before and (d) after wetting of liquid metal. (e) Change in the current of the spray-coated CuNP film before and after EGaIn wetting.
