The last few decades have witnessed unprecedented convergence between humans and
machines that closely operate around the human body. Despite these advances, traditional …

In this feature article, we critically review the physical properties of porous hydrogels and
their production methods. Our main focus is nondense hydrogels that have physical pores …

Smart stimuli-responsive materials can respond to different signals (pH, temperature, light,
electricity, etc.), and they have become a hot research topic for drug delivery. As a …

Biohydrogel–based flexible sensors have attracted enormous and growing attention for
personalized mobile equipment, human–machine interface units, wearable medical …

Nanotechnology is the exploitation of the unique properties of materials at the nanoscale.
Nanotechnology has gained popularity in several industries, as it offers better built and …

Hydrogel-polymer hybrids have been widely used for various applications such as
biomedical devices and flexible electronics. However, the current technologies constrain the …

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

Skin is the largest organ of the human body, protecting it against the external environment.
Despite high self-regeneration potential, severe skin defects will not heal spontaneously and …

As polymer networks infiltrated with water, hydrogels constitute the major components of the
human body; and hydrogels have been widely used in applications that closely interact with …

Abstract 3D printing alias additive manufacturing can transform 3D virtual models created by
computer-aided design (CAD) into physical 3D objects in a layer-by-layer manner …