Fluorescence intensity and fluorescence lifetime measurements of various carbon dots as a function of pH.

ABSTRACT: Measurement and monitoring of pH are essential in both the industry and academia. It is therefore important to continue developing novel, low-cost pH sensors that provide increased accuracy over long periods of time. Particularly promising are sensors based on materials that show pH-dependent fluorescence intensity (FI) and lifetime (FL). Carbon dots (CDs) are emerging as promising candidates because of their low cost, ease of manufacturing, low toxicity, and negligible photobleaching. However, little has been done to quantify the FI and FL values of CDs. Here we report the characterisation of the pH-dependent FI and FL of four novel solvothermal synthesised CDs. The fifth CD is used as a reference sample and was synthesised following a published synthesis. The precursors for the CDs inclu

SUBMITTER: Szapoczka WK 

PROVIDER: S-EPMC10313676 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature