US entrepreneur Bryan Johnson has come under fire after he shared a creative depiction of the human vascular system ... I think it looks better with the skin on. Just my preference," a user ...

Their proposed solution: artificial “skin” made of 3D-printed hydrogel layers held together by living human cells. Though still in the early stages of development, the researchers believe this ...

Furthermore, a one-millimetre-thick hydrogel contains 10,000 layers of nanosheets, which makes the material as stiff as human skin, and gives it a comparable degree of stretch and flexibility.

A mere one-millimeter-thick hydrogel consists of 10,000 nanosheet layers, giving it stiffness, stretch, and flexibility comparable to human skin. This new hydrogel has the potential to ...