Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSH
Herein, we prepared the L-histidine- (His-) protected silver nanoclusters (Ag NCs) by the microwave synthesis method. The synthesis process was rapid, facile, and environmentally friendly. Under 356 nm excitation, the as-prepared Ag NCs exhibited the blue fluorescence, and the fluorescence emission...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2021/8829654 |
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| author | Yunpeng Shang Hui Gao Lei Li Chaoqun Ma Jiao Gu Chun Zhu Zichen Yang Chengwei Wang Ye Zhang Guoqing Chen |
| author_facet | Yunpeng Shang Hui Gao Lei Li Chaoqun Ma Jiao Gu Chun Zhu Zichen Yang Chengwei Wang Ye Zhang Guoqing Chen |
| author_sort | Yunpeng Shang |
| collection | DOAJ |
| description | Herein, we prepared the L-histidine- (His-) protected silver nanoclusters (Ag NCs) by the microwave synthesis method. The synthesis process was rapid, facile, and environmentally friendly. Under 356 nm excitation, the as-prepared Ag NCs exhibited the blue fluorescence, and the fluorescence emission peak was located at 440 nm. The Ag NCs could successfully detect trace copper (Cu2+) ions in the aqueous solution and the limit of detection (LOD) was as low as 0.6 pM. Interestingly, the Ag NCs showed a different pH-dependent selectivity for both Cu2+ and iron (Fe3+) ions with no responses to other heavy metal ions. Furthermore, the as-fabricated fluorescent sensing system was utilized to detect glutathione (GSH, the LOD was 0.8 nM) by using the “switch-on” fluorescence recovery of Ag NCs through adding glutathione (GSH) to the Cu2+-Ag NCs solution. |
| format | Article |
| id | doaj-art-2022177a6d9640978cdadaf3963c054e |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-2022177a6d9640978cdadaf3963c054e2025-02-03T06:46:16ZengWileyJournal of Spectroscopy2314-49202314-49392021-01-01202110.1155/2021/88296548829654Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSHYunpeng Shang0Hui Gao1Lei Li2Chaoqun Ma3Jiao Gu4Chun Zhu5Zichen Yang6Chengwei Wang7Ye Zhang8Guoqing Chen9School of Science, Jiangnan University, Wuxi, ChinaSchool of Science, Jiangnan University, Wuxi, ChinaSchool of Science, Jiangnan University, Wuxi, ChinaSchool of Science, Jiangnan University, Wuxi, ChinaSchool of Science, Jiangnan University, Wuxi, ChinaSchool of Science, Jiangnan University, Wuxi, ChinaSchool of Science, Jiangnan University, Wuxi, ChinaSchool of Science, Jiangnan University, Wuxi, ChinaSchool of Science, Jiangnan University, Wuxi, ChinaSchool of Science, Jiangnan University, Wuxi, ChinaHerein, we prepared the L-histidine- (His-) protected silver nanoclusters (Ag NCs) by the microwave synthesis method. The synthesis process was rapid, facile, and environmentally friendly. Under 356 nm excitation, the as-prepared Ag NCs exhibited the blue fluorescence, and the fluorescence emission peak was located at 440 nm. The Ag NCs could successfully detect trace copper (Cu2+) ions in the aqueous solution and the limit of detection (LOD) was as low as 0.6 pM. Interestingly, the Ag NCs showed a different pH-dependent selectivity for both Cu2+ and iron (Fe3+) ions with no responses to other heavy metal ions. Furthermore, the as-fabricated fluorescent sensing system was utilized to detect glutathione (GSH, the LOD was 0.8 nM) by using the “switch-on” fluorescence recovery of Ag NCs through adding glutathione (GSH) to the Cu2+-Ag NCs solution.http://dx.doi.org/10.1155/2021/8829654 |
| spellingShingle | Yunpeng Shang Hui Gao Lei Li Chaoqun Ma Jiao Gu Chun Zhu Zichen Yang Chengwei Wang Ye Zhang Guoqing Chen Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSH Journal of Spectroscopy |
| title | Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSH |
| title_full | Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSH |
| title_fullStr | Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSH |
| title_full_unstemmed | Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSH |
| title_short | Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSH |
| title_sort | green synthesis of fluorescent ag nanoclusters for detecting cu2 ions and its switch on sensing application for gsh |
| url | http://dx.doi.org/10.1155/2021/8829654 |
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