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A xylan assisted surface-enhanced Raman scattering substrate for rapid food safety detection.
- Source :
-
Frontiers in bioengineering and biotechnology [Front Bioeng Biotechnol] 2022 Sep 30; Vol. 10, pp. 1031152. Date of Electronic Publication: 2022 Sep 30 (Print Publication: 2022). - Publication Year :
- 2022
-
Abstract
- Cellulose fiber/paper-based surface-enhanced Raman scattering (SERS) is considered as a promising food safety detection technology due to its non-toxicity, low cost, flexibility, and hygroscopicity for possible rapid on-site agricultural product contaminant detection. However, it faces the problems of poor noble metal adhesion and toxic noble metal reducing agent. In this study, a natural macromolecule-xylan was used as both a reducing agent and a stabilizing agent to prepare stable Au-Ag bimetal nanoparticles, which were anchored on the paper surface by xylans in order to fabricate a paper-based Au-Ag bimetallic SERS substrate. The results show that the SERS substrate has a high Raman enhancement performance and reproductively. The substrate can effectively detect trace pesticide, i.e., thiram, and the limit of detection is as low as 1 × 10 <superscript>-6</superscript>  mol/L (0.24 ppm). In addition, the paper-based SERS substrate can be used for direct detection of pesticide residues on the surface of fruit. The paper-based SERS substrate developed in this study has great potential in applications for rapid food safety detection.<br />Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.<br /> (Copyright © 2022 Xiang, He, Li, Bobokalonov, Dzhonmurodov and Ji.)
Details
- Language :
- English
- ISSN :
- 2296-4185
- Volume :
- 10
- Database :
- MEDLINE
- Journal :
- Frontiers in bioengineering and biotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 36246389
- Full Text :
- https://doi.org/10.3389/fbioe.2022.1031152