Nanoparticles filled with photochromic ink make colorful designs that appear and disappear in response to light ...

Any tattoo requires lots of patience, skill, and a steady hand, of course. In addition to that, it calls for a beautiful design. And combining it all usually results in some quite impressive works ...

Add Yahoo as a preferred source to see more of our stories on Google. A group of MIT and Harvard Medical School researchers explored the possibility of color-changing, health-monitoring tattoos. The ...

Scientists in Germany have developed three different tattoo dyes that change color based on the levels of certain health markers in the blood. Scientists are developing color-changing inks that may ...

Tattoos may have been a practice since Neolithic times, but it's only recently that they've become ultra-trendy, thanks to the rise of teeny, tiny tattoos and more relaxed work environments. The ...

I've been a tattoo artist for years. In addition to black-and-gray work, I specialize in color-realism designs. But the latter requires a little more research for the best results, so there are some ...

When a pair of tourists hiking the Alps stumbled across the frozen remains of the mummy Ötzi in 1991 they also, unknowingly, discovered the oldest known examples of tattoos in history. The ...

Scientists in Germany have developed an intradermal tattoo that changes color in response to fluctuations in glucose, albumin, and pH levels. Tests on animal skin have shown that the tattoos ...

Your tattoos should be as special as you. Deciding to get a new tattoo is a huge commitment. There's a lot to consider, from the artist you'll choose to the placement on your body to deciding whether ...