Inspired by shape‐morphing organisms in nature, researchers have developed various
hydrogels with stimuli‐responsive swelling, shrinking, bending, folding, origami, rolling …

Materials with switchable mechanical properties are widespread in living organisms and
endow many species with traits that are essential for their survival. Many of the mechanically …

Three‐dimensionally printed constructs are static and do not recapitulate the dynamic nature
of tissues. Four‐dimensional (4D) bioprinting has emerged to include conformational …

A new double-layer, pH-sensitive, composite hydrogel sustained-release system based on
polysaccharides and synthetic polymers with combined functions of different inner/outer …

This work describes the design and development of a prototype of a soft, hydrogel-based
microrobot, intended to move through the body lumina, carry cells or drugs, and deliver them …

Dynamic regulation of substrate micro‐structures is an effective strategy to control stem cell
fate in tissue engineering. Translating this into in vivo tissue repair in a clinical setting …

Advances in biomaterial synthesis and fabrication, stem cell biology, bioimaging,
microsurgery procedures, and microscale technologies have made minimally invasive …

Smart hydrogel actuators with excellent biocompatibility and biodegradation are extremely
desired for biomedical applications. Herein, we have constructed bio-hydrogel actuators …

Stimuli-triggered simultaneous shape-morphing and color-changing can be found in many
natural species. Developing synthetic materials and systems with these bioinspired …

The effect of dynamic shape switching of hydrogel bilayers on the performance of self-
folding microrobots is investigated for navigation in body orifices and drug release on …