Phys.org May 5, 2021
Even as electronic records advance, paper is still a common way to preserve data. Researchers in China have developed a paper information protection scheme by combining fluorescent invisible ink and artificial intelligence. The ink was prepared by dissolving carbon nanoparticles in water, which has a high quantum yield and outstanding light stability and salt stability, thus ensures the integrity of information in complex environments. A neural network was specially trained based on ultraviolet light excited symbols printed by invisible ink. Using this scheme, the correct information could only be read with the specially trained neural network after ultraviolet irradiation…read more. TECHNICAL ARTICLE
Abstract. Credit: ACS Appl. Mater. Interfaces 2021, 13, 16, 19443–19449, April 20, 2021Â