期刊
ANALYTICAL METHODS
卷 14, 期 6, 页码 672-677出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ay02042k
关键词
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资金
- National Natural Science Foundation of China [21103209, 21273256]
This study successfully estimated the critical micelle concentration (CMC) of surfactants using environmentally friendly amphiphilic carbon dots (Cdots) as ratiometric fluorescent probes. This provides a new strategy for designing green ratiometric fluorescent probes and expanding the application of Cdots in the colloidal field.
The sensitive determination of the critical micelle concentration (CMC) of surfactants is very important for their practical application. Due to their good sensitivity and simple operation, pyrene and its derivatives have been widely used as fluorescent probes to detect the CMC. However, their virulent and poor water-soluble nature has limited their wide employment. In the present work, environmentally friendly amphiphilic carbon dots (Cdots) with dual-color emission and absolute quantum yield (PLQY) values higher than 50% have been fabricated through a solvothermal process, which could successfully serve as self-calibrative, ratiometric fluorescent probes to estimate the CMC of both non-ionic and ionic surfactants. This work not only provides a new strategy to design green ratiometric fluorescent probes for the CMC measurement of surfactants but also expands the application of Cdots in the colloidal field.
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