期刊
ACS APPLIED MATERIALS & INTERFACES
卷 8, 期 6, 页码 3644-3650出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b08089
关键词
fluorescent probe; Si-CDs@DA; carbon-based dots; intracellular Ag+ sensing; cell imaging
资金
- National Natural Science Foundation of China [21175069, 21475062, 21505077]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
A novel nanocomposite, silicon-carbon-based dots@dopamine (Si-CDs@DA) was prepared using (3-aminopropyl) triethoxysilane, glycerol, and dopamine as raw materials via a rapid microwave-assisted irradiation. This type of Si-CDs@DA exhibited ultrabright fluorescence emission (quantum yield of 12.4%) and could response to Ag selectively and sensitively. Moreover, the obtained Si-CDs@DA can be further applied in sensing intracellular Ag+ and cell imaging, because of its photostability, salt stability, and low cytotoxicity. This study provides a simple and efficient approach for preparing novel Ag+ fluorescent probes, which could expand the application of carbon nanomaterials in designing related biosensors.
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