OKOKOK Intelligent inks – now you see them, now you don’t : Official Website of Dr. Michio Kaku

January 21, 2008 | MKaku.org | Comments 0

Intelligent inks – now you see them, now you don’t

Photographs of oxygen indicator ink printed on a MAPed food package. Left: Before UV activation. Middle: After UV activation. Right: On opening the package.

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