Bio-imaging Carbon dots 5 Carbon 4 Anti-counterfeiting 3 Boric acid 3 Cryptography 3 Green synthesis 3 Information protection 3 Long lifetime 3 Phosphorescence 3 Phosphorescent material 3 Quantum yield 3 Room-temperature phosphorescent 3 Stokes shift 3 Synthesis process 3 anti-counterfeiting 3 carbon dots 3 information protection 3 room-temperature phosphorescent 3 Bioimaging 2 Diseases 2 Mammals 2 Semiconductor quantum dots 2 Amino acid carbon dot 1 Amino acid carbon dots 1 Amino acids 1 Amino-acids 1 Bio photonics 1 Bioactivity 1 Biological imaging 1