Fluorescent Carbon Dots (CDs) as a pH Sensor

作者: Feng Lin , Wei Na He , Xiang Qun Guo

DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.415-417.1319

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摘要: The pH-dependent properties of carbon dots (CDs), decorated with surface carboxylic acid functional groups, are described. Absorption, fluorescence emission measurements were used to study the reversible spectral response. emissions CDs demonstrate a strong dependence on excitation wavelengths and make as-prepared good ratiometric pH-sensor candidate. This green material CDs-based probe shows promising potential for probing pH in real sample vivo intracellular imaging.

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