Problems? There are rashes — itchy, sometimes painful and occasionally disfiguring — which can assume fantastical shapes. Ink reactions also include pseudolymphomas — benign swellings around lymph ...

There is an open secret among tattoo artists, dermatologists, and the small group of researchers studying the effects of tattoo ink: Red ink causes the most problems. These problems include ...

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BOULDER, Colo. — Mad-scientist kind of moments happen fairly often for nanoengineer Carson Bruns. A few months ago in his lab at the University of Colorado-Boulder, he tested his latest invention on ...