Programmable pigments: photochromic nanoparticle inks enable rewritable tattoos
Bluestein · hn · 2026-10-11
A study in Cell's Matter & Light demonstrates 'programmable pigments': photochromic nanoparticle inks that enable rewritable tattoos, changing or fading color under specific light exposure—a new route to switchable on-skin displays and decorations.
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