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Abstract

In article number 1807101, Xuanhe Zhao and co-workers report multifunctional hydrogel skins by interpenetrating hydrophilic polymers into the surfaces of diverse polymers with arbitrary shapes to provide soft, low-friction, hydrophilic, antifouling, and ionically conductive surfaces. This new strategy not only addresses challenges for existing methods but also enables unprecedented applications including hydrogel-coated complex medical devices and soft robots on large scales.