A group of MIT and Harvard Medical School researchers explored the possibility of color-changing, health-monitoring tattoos. The smart ink can detect blood sugar elevation and dehydration. One of the ...

Scientists have created a new light-activated ink that can change color on demand. It’s made up of microbeads of different colors that rise or sink in response to different wavelengths of light so ...

Tattoos have long been a way for people to express their personal style, beliefs, and creativity. However, the commitment to permanent ink can be daunting for some, leading many to seek alternatives ...