High SERS performance of functionalized carbon dots in the detection of dye contaminants
Introduction: The long-term overuse of malachite green (MG) has potential carcinogenic, teratogenic, and mutagenic effects. The functional nanocomposite is novel and challenging to construct and implement through surface enhanced Raman scattering (SERS) strategy to reveal the contributions in applic...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Journal of Advanced Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090123224000663 |
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| author | Yanqiu Yang Lingru Kong Yong Ding Lixin Xia Shuo Cao Peng Song |
| author_facet | Yanqiu Yang Lingru Kong Yong Ding Lixin Xia Shuo Cao Peng Song |
| author_sort | Yanqiu Yang |
| collection | DOAJ |
| description | Introduction: The long-term overuse of malachite green (MG) has potential carcinogenic, teratogenic, and mutagenic effects. The functional nanocomposite is novel and challenging to construct and implement through surface enhanced Raman scattering (SERS) strategy to reveal the contributions in application. Objectives: The novel Ag-CDs (carbon dots)-PBA (phenyl boric acid) nanocomposite was constructed by a facile route to detect toxic MG molecule with high SERS sensitivity and good uniformity. Methods: The enhanced substrate used for the detection of MG has been successfully constructed using PBA modulated Ag-CDs on a structured surface with rich binding sites. Results: The fabricated Ag-CDs-PBA substrate can be used to analyze various probe molecules exhibiting high sensitivity, good signal reproducibility, and excellent stability. The mechanism between components has been proved by calculations originating from the plasmonic Ag and active electronic transmission among the bridging CDs and PBA via the close spatial π-π effect. In addition, the accelerated separation of electron-hole pairs was triggered to further improve the SERS activity of the hybrid via a bidirectional charge transfer (CT) process. Significantly, the Ag-CDs-PBA system shows distinctive selectivity, in which PBA can hinder the interference of other species without specific hydroxyl groups. Conclusion: Based on this deeper insight on plasmon-mediated mechanism, the SERS substrate was successfully practiced for quantitative determination in real water and fish samples. The strategy developed promises to be a new sensor technology and has great potential for environmental and food safety applications. |
| format | Article |
| id | doaj-art-ebc4c78ab3de4be98e5a9135cc53a2bc |
| institution | Kabale University |
| issn | 2090-1232 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Advanced Research |
| spelling | doaj-art-ebc4c78ab3de4be98e5a9135cc53a2bc2025-01-18T05:04:16ZengElsevierJournal of Advanced Research2090-12322025-02-01688998High SERS performance of functionalized carbon dots in the detection of dye contaminantsYanqiu Yang0Lingru Kong1Yong Ding2Lixin Xia3Shuo Cao4Peng Song5Department of Physics, Liaoning University, Shenyang 110036, ChinaDepartment of Physics, Liaoning University, Shenyang 110036, ChinaDepartment of Physics, Liaoning University, Shenyang 110036, ChinaCollege of Chemistry, Liaoning University, Shenyang 110036, China; Yingkou Institute of Technology, Yingkou 115014, ChinaDepartment of Physics, Liaoning University, Shenyang 110036, ChinaDepartment of Physics, Liaoning University, Shenyang 110036, China; Corresponding author.Introduction: The long-term overuse of malachite green (MG) has potential carcinogenic, teratogenic, and mutagenic effects. The functional nanocomposite is novel and challenging to construct and implement through surface enhanced Raman scattering (SERS) strategy to reveal the contributions in application. Objectives: The novel Ag-CDs (carbon dots)-PBA (phenyl boric acid) nanocomposite was constructed by a facile route to detect toxic MG molecule with high SERS sensitivity and good uniformity. Methods: The enhanced substrate used for the detection of MG has been successfully constructed using PBA modulated Ag-CDs on a structured surface with rich binding sites. Results: The fabricated Ag-CDs-PBA substrate can be used to analyze various probe molecules exhibiting high sensitivity, good signal reproducibility, and excellent stability. The mechanism between components has been proved by calculations originating from the plasmonic Ag and active electronic transmission among the bridging CDs and PBA via the close spatial π-π effect. In addition, the accelerated separation of electron-hole pairs was triggered to further improve the SERS activity of the hybrid via a bidirectional charge transfer (CT) process. Significantly, the Ag-CDs-PBA system shows distinctive selectivity, in which PBA can hinder the interference of other species without specific hydroxyl groups. Conclusion: Based on this deeper insight on plasmon-mediated mechanism, the SERS substrate was successfully practiced for quantitative determination in real water and fish samples. The strategy developed promises to be a new sensor technology and has great potential for environmental and food safety applications.http://www.sciencedirect.com/science/article/pii/S2090123224000663SERS enhancementCarbon dotsCharge transferMG detection |
| spellingShingle | Yanqiu Yang Lingru Kong Yong Ding Lixin Xia Shuo Cao Peng Song High SERS performance of functionalized carbon dots in the detection of dye contaminants Journal of Advanced Research SERS enhancement Carbon dots Charge transfer MG detection |
| title | High SERS performance of functionalized carbon dots in the detection of dye contaminants |
| title_full | High SERS performance of functionalized carbon dots in the detection of dye contaminants |
| title_fullStr | High SERS performance of functionalized carbon dots in the detection of dye contaminants |
| title_full_unstemmed | High SERS performance of functionalized carbon dots in the detection of dye contaminants |
| title_short | High SERS performance of functionalized carbon dots in the detection of dye contaminants |
| title_sort | high sers performance of functionalized carbon dots in the detection of dye contaminants |
| topic | SERS enhancement Carbon dots Charge transfer MG detection |
| url | http://www.sciencedirect.com/science/article/pii/S2090123224000663 |
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