Ultrasensitive visual detection of Hg2+ ions via the Tyndall effect of gold nanoparticles
| Autor: | Yun Zhang, Yali Yuan, Zihao Deng, Ziheng Huang, Wenying Jin, Jianmei Zou, Qiaobo Yin, Jinfang Nie, Haiyan Fu, Jinkun Huang |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Tyndall effect Metals and Alloys Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis Light scattering 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ion Visual detection Colloidal gold Materials Chemistry Ceramics and Composites Surface plasmon resonance 0210 nano-technology |
| Zdroj: | Chemical Communications. 57:2613-2616 |
| ISSN: | 1364-548X 1359-7345 |
| DOI: | 10.1039/d0cc08003a |
| Popis: | This work reports a new methodology for naked-eye nanosensing of Hg2+ where the Tyndall effect of gold nanoparticles (GNPs) acts as a light scattering signalling readout. Its utility is demonstrated with ultrasensitive detection of the target with a limit down to 0.13 nM (∼5461-fold sensitivity improvement over conventional GNP-based methods with surface plasmon resonance signalling). |
| Databáze: | OpenAIRE |
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