responsive materials
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Nanoparticles’ colour-changing ability makes it possible to create self-erasing documents
London, July 9 (ANI): Scientists have developed a film that exploits the colour-changing ability of nanoparticles, and can make it possible to create documents that wipe themselves clean after they’ve been read.
Northwestern University researchers in Evanston, Illinois, have revealed that they made the film by coating gold nanoparticles with a layer of hair-like molecules called [...]
