Polyelectrolyte‐Mediated Modulation of Spatial Internal Stresses of Hydrogels for Complex 3D Actuators

Hydrogel actuators with complex 3D initial shapes show numerous important applications, but it remains challenging to fabricate such actuators. This article describes a polyelectrolyte‐based strategy for modulating small‐scale internal stresses within hydrogels to construct complex actuators with ta...

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