Zhengzhou, People's Republic of China, Asia, Supramolecular Research, Amino Acids, Chirality, Cyclic Amino Acids, Emerging Technologies, Essential Amino Acids, Health and Medicine, Histidine, Nanotechnology, Supramolecular, Supramolecular Chirality According to the news reporters, the research concluded: "The protonation-controlled PyC3His/TCNB CT assemblies at varied pH values showed different chiroptical photothermic effects (CPEs) for the same incident chiral light despite the molecular chirality of PyC3His remaining unchanged, supporting an interesting supramolecular chirality-directed photothermic effect." Upon protonation of the histidine moiety, PyC3His/TCNB CT assemblies exhibited an inverted CPL signal, while PyHis/TCNB pairs gave quenched CPL due to the disassembly.". [Extracted from the article]