Control Synthesis of Multicolor Emitting Carbonized Polymer Dots Using Different Dihydroxynaphthalene Isomers.

ABSTRACT: Carbonized polymer dots (CDs) with sizes smaller than 10 nm have gained significant interest, particularly in the pursuit of multicolor fluorescence, which is a fascinating field of research. Here, we report the control synthesis of multicolor CDs with tunable emissions via the rational selection of isomer-based reaction precursors. Using cost-friendly dihydroxynaphthalene (DHN) isomers (1,7-DHN, 1,6-DHN, or 2,7-DHN) and l-methionine as the precursors, multicolor CDs with blue, green, and red fluorescence were obtained under ethanol-thermal conditions. It can be observed that structural changes in the coordination of the hydroxyl group within the aromatic compound DHN lead to a significant redshift in the emission of the synthesized CDs. Notably, the red-emitting CDs (r-CDs, 10 μM) at very

SUBMITTER: Chen X 

PROVIDER: S-EPMC11938013 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature