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Researchers have developed new 4D hydrogels — 3D materials that have the ability to change shape over time in response to stimuli — that can morph multiple times in a preprogrammed or on-demand manner in response to external trigger signals.
Researchers have developed new 4D hydrogels — 3D materials that have the ability to change shape over time in response to stimuli — that can morph multiple times in a preprogrammed or on-demand manner in response to external trigger signals.