Stretchable and Shape-Transformable Organohydrogel with Gallium Mesh Frame.

ABSTRACT: Shape-memory materials are widely utilized in biomedical devices and tissue engineering, particularly for their ability to undergo predefined shape changes in response to external stimuli. In this study, a shape-transformable organohydrogel was developed by incorporating a gallium mesh into a polyacrylamide/alginate/glycerol matrix. The gallium mesh, which transitions between solid and liquid states at moderate temperatures (~29.8 °C), enhanced the hydrogel's mechanical properties and enabled shape-memory functionality. The composite organohydrogel exhibited a high elastic modulus of ~900 kPa in the solid gallium state and ~30 kPa in the liquid gallium state, enabling reversible deformation and structural stability. Glycerol improved the hydrogel's moisture retention, maintaining stretchab

SUBMITTER: Lee M 

PROVIDER: S-EPMC11675981 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature