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. 2012 Jun 25;51(26):6432-5.
doi: 10.1002/anie.201202533. Epub 2012 May 29.

A tunable ratiometric pH sensor based on carbon nanodots for the quantitative measurement of the intracellular pH of whole cells

Wen Shi  1 , Xiaohua Li, Huimin Ma
Affiliations

A tunable ratiometric pH sensor based on carbon nanodots for the quantitative measurement of the intracellular pH of whole cells

Wen Shi et al. Angew Chem Int Ed Engl. .

Abstract

The whole picture: Carbon nanodots labeled with two fluorescent dyes have been developed as a tunable ratiometric pH sensor to measure intracellular pH. The nanosensor shows good biocompatibility and cellular dispersibility. Quantitative determinations on intact HeLa cells and pH fluctuations associated with oxidative stress were performed.

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