Banknotes,documents, branded products, and sensitive goods like pharmaceuticals or technical components are often marked to distinguish them from imitations. However,some counterfeiters believe learned to copy conventional fluorescent tags. In the journal Angewandte Chemie, Chinese scientists believe now introduced a new, and exceptional anti-counterfeit ink made with carbon nanodots. Their ingenious composite fabric emits three different types of luminescence.
Source: phys.org