3D shape morphing of stimuli-responsive composite hydrogels

Abstract

In nature, plants and animals undergo remodeling to adapt to changes in their surroundings. Stimuli-responsive hydrogels, with their abundant water content and inherent responsiveness to environmental stimuli, serve as ideal...

Applications of inverse opal photonic crystal hydrogels in the preparation of acid–base color-changing materials

“…Since the IOPCHs films have relatively different lattice distances and refractive indices, the obvious changes of unit cell volume and refractive index of the matrix confer editable color shift. 21,22 Therefore, the internal cell structure color can be changed by using external stimulation to change the refractive index or lattice constant of IOPCHs. With the continuous development of various responsive polymers, the adjustment range of structural color is wider, and the color change mode is closer to the biological color change principle.…”