Nanostructure-Based Surface-Enhanced Raman Spectroscopy Techniques for Pesticide and Veterinary Drug Residues Screening
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Nanostructure‑Based Surface‑Enhanced Raman Spectroscopy Techniques for Pesticide and Veterinary Drug Residues Screening Mingtao Li1 · Xiang Zhang1,2 Received: 3 March 2020 / Accepted: 7 September 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Pesticide and veterinary drug residues in food and environment pose a threat to human health, and a rapid, super-sensitive, accurate and cost-effective analysis technique is therefore highly required to overcome the disadvantages of conventional techniques based on mass spectrometry. Recently, the surface-enhanced Raman spectroscopy (SERS) technique emerges as a potential promising analytical tool for rapid, sensitive and selective detections of environmental pollutants, mostly owing to its possible simplified sample pretreatment, gigantic detectable signal amplification and quick target analyte identification via finger-printing SERS spectra. So theoretically the SERS detection technology has inherent advantages over other competitors especially in complex environmental matrices. The progress in nanostructure SERS substrates and portable Raman appliances will promote this novel detection technology to play an important role in future rapid on-site assay. This paper reviews the advances in nanostructure-based SERS substrates, sensors and relevant portable integrated systems for environmental analysis, highlights the potential applications in the detections of synthetic chemicals such as pesticide and veterinary drug residues, and also discusses the challenges of SERS detection technique for actual environmental monitoring in the future. Keywords Surface-enhanced Raman spectroscopy (SERS) · Nanostructure · Detection · Pesticide · Veterinary drug
Introduction Pesticides and veterinary drugs are an integral part of modern farming and animal husbandry, which make prominent contributions to elevate food production and quality. Unfortunately, the increased use leads to ineluctable pollution in agriculture ecosystem and toxin residues in foods (Bennett et al. 2005; Bhandari et al. 2019). Furthermore, the contaminated environment will cause chemical residues in agricultural products for a long period. Uptake of the excess harmful residues from daily diet could produce human health concerns (Bempah et al. 2016; Baynes et al. 2016; Fisher et al. 2018; Kumari and John 2019). Hence various techniques such as liquid chromatography-tandem * Mingtao Li [email protected] 1
Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
University of Science and Technology of China, Hefei 230026, China
2
mass spectrometry (Stubbings and Bigwood 2009; Jia et al. 2014), enzyme-linked immunosorbent assay (Taheri et al. 2016; Liu et al. 2018) and optical spectroscopy (Zhou et al. 2016b; Wang et al. 2020) have been employed in the inspection of hazardous chemical residues in environment and foods. Nowadays, the convent
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