Recent advances in nanofabrication techniques for SERS substrates and their applications in food safety analysis |
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| Authors: | Xiaohui Xie Hongbin Pu |
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| Affiliation: | 1. School of Food Science and Engineering, South China University of Technology, Guangzhou, China;2. Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, China;3. Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods |
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| Abstract: | ABSTRACTThe ability to analyze food safety and quality in a quick, sensitive, and reliable manner is of high importance in food industry. Surface-enhanced Raman scattering (SERS), which is popular for its significant enhancement, excellent sensitivity, and the fingerprinting ability to identify special molecules, has shown vast potential for rapid detection of chemical constitutes, chemical contaminants, and pathogens in food sample. For SERS, the enhancement of Raman signals is related to not only the SERS-active substrates, but also the interactions between sample and substrates. In the current review, colloidal and solid surface-based substrates are briefly described, fabrication techniques for SERS substrates are presented, and applications of SERS for food matrixes, correlation between substrates and food samples are also introduced. Finally, some outlook on further developments is presented. The current review is therefore intended to provide a comprehensive overview on the nanofabrication of SERS substrates, and the potential of applying SERS as an important food analysis platform. |
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| Keywords: | surface-enhanced Raman scattering food safety analysis platform nanostructure nanofabrication small molecules pathogens proteins |
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