A sensitive and selective sensor for the detection of chloroform using biosurfactant ethoxylated phytosterol-capped gold nanoparticles
| Autor: | Yilei Song, Yanguang Zhu, Jibin An, Ning Zhao, Hongyan Wu, Hongtao Zhou, Xu Leng, Pan Huang, Han Jia |
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| Rok vydání: | 2017 |
| Předmět: |
Chloroform
Chromatography Aqueous solution Small volume Phytosterol Mechanism based 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Colloidal gold General Materials Science Naked eye 0210 nano-technology Selectivity |
| Zdroj: | Materials Chemistry and Physics. 202:285-288 |
| ISSN: | 0254-0584 |
| DOI: | 10.1016/j.matchemphys.2017.09.056 |
| Popis: | A facile, sensitive, and selective sensor was developed to detect chloroform using biosurfactant ethoxylated phytosterol-capped gold nanoparticles (BPS-GNPs). The BPS-GNPs were induced to aggregate rapidly with the addition of chloroform. Detection of additional chloroform of relatively small volume can be easily realized by monitoring the color fading of BPS-GNP aqueous solution by the naked eye. The presence of the chloroform with extremely small volume can be monitored by UV–vis spectra. A possible detection mechanism based on “double interface competitive adsorption’’ was proposed. Other common organic substances were used to further verify the selectivity of the detection. |
| Databáze: | OpenAIRE |
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