At first glance, it looks like a plain, slightly glossy sheet. Then it goes through a quick bath, the temperature shifts, and a famous face comes back from nowhere.

Researchers unveil octopus-inspired smart skin that hides images, changes shape, and encodes data via 4D printing.

The researchers turned to hydrogels, which are water-rich, jelly-like polymers that respond to temperature and chemicals. But instead of layering different materials or embedding electronics, they ...

This octopus-inspired smart skin can change shape and reveal hidden secrets on command.

A light- and temperature-responsive hydrogel combines MXene and PNIPAM to achieve reversible, high-performance EMI shielding across a wide GHz range. (Nanowerk Spotlight) The rapid growth of wireless ...

A Chinese research team has developed a single-step femtosecond laser 4D printing technology that enables rapid and precise micro-scale deformation of smart hydrogels. This innovation, inspired by the ...

Diabetic wounds remain one of the most challenging complications of diabetes, often leading to chronic ulcers, infections, and even amputations. In a groundbreaking development, researchers have ...

This electroactive polymer hydrogel “learned” to play Pong. Credit: Cell Reports Physical Science/Strong et al. “Our research shows that even very simple materials can exhibit complex, adaptive ...

Advances in materials science are transforming medicine, engineering, and environmental technology. Among the most promising innovations are hydrogels—highly absorbent polymer networks with ...