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Photochromic nanoparticle inks enable rewritable tattoos
Original: Programmable pigments: Photochromic nanoparticle inks for rewritable tattoos
Researchers have developed photochromic nanoparticle inks described as 'programmable pigments' that can be used for rewritable tattoos, allowing skin markings to be altered or erased on demand. The work, published in Matter, points to applications in dynamic body art, medical monitoring and temporary displays. Readers are debating the safety, durability and practicality of switchable pigments on human skin.
Why now: The idea of tattoos that can be rewritten on demand challenges the assumption that tattoos are permanent, sparking curiosity about future uses.
Matter (journal)photochromic nanoparticle inks
Evidence
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