Application Progress of Green Carbon Dots in Analysis and Detection

Abstract

Green chemistry is currently attracting more and more attention due to its eco‐friendly, and green carbon dots (g‐CDs) are creating a research boom. The g‐CDs have huge application prospects in analysis and detection due to their excellent optical properties, high biocompatibility, and low toxicity compared to other fluorescent materials. Based on the study of g‐CDs, the optical properties, synthesis methods, surface modification methods, and sensing mechanisms of g‐CDs are outlined, and the application in analysis and detection of environmental, food, biomolecules, and other organic small molecules are reviewed. At the same time, the challenges faced by g‐CDs are outlined. This review provides valuable references for further research and wider application of g‐CDs.

Comparison of carbon dots prepared from collagen peptides using conventional hydrothermal and microwave methods

“…It is well known that the quantum confinement effect (size dependence) is one of the important factors determining the quantum yield of CDs. 29,30 Thus, the larger size of quantum dots is an important reason contributing to the lower quantum yields of CDs-MW.…”

“…The difference is related to particle size, domain size, and surface state of the two CDs. 29,30 The photoluminescence spectra of the two CDs are shown in Fig. 1C and D.…”

Insight into the differences in carbon dots prepared from fish scales using conventional hydrothermal and microwave methods

“…The difference was related to the particle size, domain size, and surface states of the CDs. (Ma et al 2022, Pundi &Chang 2022) The illustrations are images of the two CD solutions visualized using a uorescent lamp and an ultraviolet lamp. The two CD solutions appeared transparent in visible light and were evenly dispersed without any aggregation or precipitation.…”