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18 March 2024 A flexible SERS sensor of PANI/GO/Ag film for detecting pesticide residue of glyphosate
Xishun Peng, Yiheng Yuan, Li Yang, Xinghua Li, Qixin Chen, Cheng Zuo, Zhangyu Zhou, Zhongchen Bai
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Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 1310431 (2024) https://doi.org/10.1117/12.3023290
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China
Abstract
Glyphosate is widely used as a common pesticide. However, glyphosate residues in food is harmful to human health. In this paper, we proposed a flexible SERS sensor of PANI/GO/Ag film for detecting the pesticide residue of glyphosate. The Raman peak at 1045cm-1 of glyphosate was selected as the object to evaluate the SERS ability. To study the Raman enhancement ability of the flexible SERS sensor on glyphosate, the PANI/GO/Ag film was soaked in different concentrations of glyphosate solution to test the characteristic peak value. The results showed that the EF of glyphosate molecules was 1.1×106 and the LOD was 2.34 nM. After 15 days of storage at room temperature, the SERS enhanced performance of the sensor was up 92% of the initial strength. The PANI/GO/Ag flexible SERS sensor proposed in this paper has the advantages of high efficiency, rapid and specific recognition, which can be widely applied to the current agriculture, biomedicine, food industry, and other fields.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Xishun Peng, Yiheng Yuan, Li Yang, Xinghua Li, Qixin Chen, Cheng Zuo, Zhangyu Zhou, and Zhongchen Bai "A flexible SERS sensor of PANI/GO/Ag film for detecting pesticide residue of glyphosate", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 1310431 (18 March 2024); https://doi.org/10.1117/12.3023290
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KEYWORDS
Sensors
Molecules
Surface enhanced Raman spectroscopy
Pesticides
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