Metastable Nanoparticle Ink Compositions and Images Made Therefrom
Self-erasing inks in which both the printing and self-erasure of color images can be controlled by the dynamic/non-equilibrium aggregation of photoresponsive surface-coated nanoparticles contained in a carrier film are provided. The aggregation is a reversible aggregation that is triggered by a photo-induced transformation in ligands within the surface coating on the nanoparticles. Methods for forming images using the inks are also provided.
GRZYBOWSKI BARTOSZ A [US]; KLAJN RAFAL [IL]; WESSON PAUL J [US]; BISHOP KYLE J M [US]
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