Hydrogen-Bonding Recognition-Induced Colorimetric Determination of Hydrazine Based on the Tryptophan Capped Gold Nanoparticles
A simple, cost-effective, and rapid colorimetric method for hydrazine detection using tryptophan-caped gold nanoparticles (Trp-AuNPs) has been developed. Tryptophan (Trp) is a protein with reducibility and amino group which can reduce chloroauric acid (HAuCl4) to AuNPs and modify the surface of AuNP...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2013/517613 |
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| author | Wenhua Gao Jing Xi Yunsheng Chen Song Xiao Xingqing Wang Jun Li Jincheng Xiao Yaowen Chen |
| author_facet | Wenhua Gao Jing Xi Yunsheng Chen Song Xiao Xingqing Wang Jun Li Jincheng Xiao Yaowen Chen |
| author_sort | Wenhua Gao |
| collection | DOAJ |
| description | A simple, cost-effective, and rapid colorimetric method for hydrazine detection using tryptophan-caped gold nanoparticles (Trp-AuNPs) has been developed. Tryptophan (Trp) is a protein with reducibility and amino group which can reduce chloroauric acid (HAuCl4) to AuNPs and modify the surface of AuNPs simultaneously. The Trp-AuNPs could be used to quantitatively detect hydrazine and showed different responses to vary concentration of hydrazine in an aqueous solution based on the aggregation-induced color change of Trp-AuNPs. The real water sample analysis verified the conclusion. The sensitivity of the detection system was influenced by the size of AuNPs which is determined by the pH of the detection system, the concentration of Trp, and the react time. We found that higher temperature contributed to more rapidly results. The detection system can detect as low as 1 μM hydrazine. We expect our approach to have wide-ranging applications in the developing region for monitoring water quality in some areas. |
| format | Article |
| id | doaj-art-d90660a814de4121a3ea79a86e94ea45 |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-d90660a814de4121a3ea79a86e94ea452025-02-03T07:23:35ZengWileyJournal of Spectroscopy2314-49202314-49392013-01-01201310.1155/2013/517613517613Hydrogen-Bonding Recognition-Induced Colorimetric Determination of Hydrazine Based on the Tryptophan Capped Gold NanoparticlesWenhua Gao0Jing Xi1Yunsheng Chen2Song Xiao3Xingqing Wang4Jun Li5Jincheng Xiao6Yaowen Chen7Department of Chemistry, Shantou University, Guangdong, Shantou 515063, ChinaDepartment of Chemistry, Shantou University, Guangdong, Shantou 515063, ChinaDepartment of Chemistry, Shantou University, Guangdong, Shantou 515063, ChinaDepartment of Chemistry, Medical College of Guiyang, Guizhou, Guiyang 550004, ChinaDepartment of Chemistry, Shantou University, Guangdong, Shantou 515063, ChinaDepartment of Chemistry, Shantou University, Guangdong, Shantou 515063, ChinaDepartment of Chemistry, Shantou University, Guangdong, Shantou 515063, ChinaAnalysis & Testing Center, Shantou University, Guangdong, Shantou 515063, ChinaA simple, cost-effective, and rapid colorimetric method for hydrazine detection using tryptophan-caped gold nanoparticles (Trp-AuNPs) has been developed. Tryptophan (Trp) is a protein with reducibility and amino group which can reduce chloroauric acid (HAuCl4) to AuNPs and modify the surface of AuNPs simultaneously. The Trp-AuNPs could be used to quantitatively detect hydrazine and showed different responses to vary concentration of hydrazine in an aqueous solution based on the aggregation-induced color change of Trp-AuNPs. The real water sample analysis verified the conclusion. The sensitivity of the detection system was influenced by the size of AuNPs which is determined by the pH of the detection system, the concentration of Trp, and the react time. We found that higher temperature contributed to more rapidly results. The detection system can detect as low as 1 μM hydrazine. We expect our approach to have wide-ranging applications in the developing region for monitoring water quality in some areas.http://dx.doi.org/10.1155/2013/517613 |
| spellingShingle | Wenhua Gao Jing Xi Yunsheng Chen Song Xiao Xingqing Wang Jun Li Jincheng Xiao Yaowen Chen Hydrogen-Bonding Recognition-Induced Colorimetric Determination of Hydrazine Based on the Tryptophan Capped Gold Nanoparticles Journal of Spectroscopy |
| title | Hydrogen-Bonding Recognition-Induced Colorimetric Determination of Hydrazine Based on the Tryptophan Capped Gold Nanoparticles |
| title_full | Hydrogen-Bonding Recognition-Induced Colorimetric Determination of Hydrazine Based on the Tryptophan Capped Gold Nanoparticles |
| title_fullStr | Hydrogen-Bonding Recognition-Induced Colorimetric Determination of Hydrazine Based on the Tryptophan Capped Gold Nanoparticles |
| title_full_unstemmed | Hydrogen-Bonding Recognition-Induced Colorimetric Determination of Hydrazine Based on the Tryptophan Capped Gold Nanoparticles |
| title_short | Hydrogen-Bonding Recognition-Induced Colorimetric Determination of Hydrazine Based on the Tryptophan Capped Gold Nanoparticles |
| title_sort | hydrogen bonding recognition induced colorimetric determination of hydrazine based on the tryptophan capped gold nanoparticles |
| url | http://dx.doi.org/10.1155/2013/517613 |
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