Could Tattoos That Change Color Someday Replace Fingersticks?

Researchers at the Massachusetts Institute of Technology (MIT), and Harvard Medical School,  have developed a new kind of tattoo ink that changes color in response to changes in the body. So far they’ve developed three different inks, which change in response to changing pH levels, sodium levels, and blood sugar levels.
The project is called Dermal Abyss. It’s only in the earliest stages of research, but future applications of the technology could be broad. Read more

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