Carbon-dot-based dual-emission silica nanoparticles as a ratiometric fluorescent probe for Bisphenol A
| Autor: | Lijun He, Pan-Pan Wang, Yin Xia, Guoqiang Xiang, Wenjie Mao, Deng-Hui Yang, Chao Fan, Si-Yu Guo, Yue Ren, Xiuming Jiang |
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| Rok vydání: | 2016 |
| Předmět: |
Detection limit
Bisphenol A 010401 analytical chemistry Inorganic chemistry chemistry.chemical_element Hydrochloric acid 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Fluorescence Atomic and Molecular Physics and Optics 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound chemistry Linear range Nanosensor 0210 nano-technology Potassium bromate Instrumentation Carbon Spectroscopy |
| Zdroj: | Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 177 |
| ISSN: | 1873-3557 |
| Popis: | A simple and effective strategy for designing a ratiometric fluorescent nanosensor is described in this work. A carbon dots (CDs) based dual-emission nanosensor for Bisphenol A (BPA) was prepared by coating CDs on the surface of dye-doped silica nanoparticles. The fluorescence of dual-emission silica nanoparticles was quenched in hydrochloric acid by potassium bromate (KBrO3) oxidation; BPA inhibited KBrO3 oxidation, resulting in the ratiometric fluorescence response of dual-emission silica nanoparticles. Several important parameters affecting the performance of the nanosensor were investigated and optimized. The detection limit of this nanosensor was 0.80 ng mL− 1 with a linear range from 10 to 500 ng mL− 1. This was applied successfully to determine BPA in the leached solution of different plastic products with satisfactory results. |
| Databáze: | OpenAIRE |
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