Tuning the Photochromism of Spiropyran in Functionalized Nanoporous Silica Nanoparticles for Dynamic Anticounterfeiting Applications
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DOI: 10.1021/acsomega.3c01604
Abstract: Here, we report a novel invisible ink with different decay times based on thin films with different molar ratios of spiropyran (SP)/Si, which allows the encryption of messages over time. Nanoporous silica has been found… read more here.
Keywords: photochromism spiropyran; nanoporous silica; thin films; dynamic anticounterfeiting ... See more keywords