Multicolor polymeric carbon dots: synthesis, separation and polyamide-supported molecular fluorescence.

ABSTRACT: Multicolor carbon dots (CDs) have been developed recently and demonstrate great potential in bio-imaging, sensing, and LEDs. However, the fluorescence mechanism of their tunable colors is still under debate, and efficient separation methods are still challenging. Herein, we synthesized multicolor polymeric CDs through solvothermal treatment of citric acid and urea in formamide. Automated reversed-phase column separation was used to achieve fractions with distinct colors, including blue, cyan, green, yellow, orange and red. This work explores the physicochemical properties and fluorescence origins of the red, green, and blue fractions in depth with combined experimental and computational methods. Three dominant fluorescence mechanism hypotheses were evaluated by comparing time-dependent den

SUBMITTER: Zhi B 

PROVIDER: S-EPMC8179321 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature