title: A rapid Raman detection of deoxynivalenol in agricultural products.
abstract: Mycotoxin results in financial damage and considerable safety risks. In this paper, the possibility of portable Raman system-based surface-enhanced Raman scattering (SERS) for a rapid detection of deoxynivalenol (DON) a mycotoxin in cereals was investigated. Under an optimized condition, SERS analysis for pure DON solution has a wide dynamic concentration range from 10-7M to 10-2M with the limit of detection (LOD) down to 100nM. Density functional theory (DFT) analysis at the level of B3LYP/6-311++G(d, p) was also preformed for vibrational assignment. For practical application, the LOD of the proposed Raman method for both DON-contaminated corns and kidney beans were validated as 10-6M and the LOD for DON-contaminated oats was 10-4M. As a perspective, the SERS-based technology could be developed into an alternatively promising assay for on-field detection of DON residues at various cereals due to it high sensitivity and selectivity.
authors.affiliation: Department of Biology, Shanghai Normal University, Shanghai 200234, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Yuan
authors.affiliation: Department of Biology, Shanghai Normal University, Shanghai 200234, PR China. Electronic address: willin@shnu.edu.cn.
authors.forename: Chuanwen
authors.initials: C
authors.lastname: Sun
authors.affiliation: The Education Ministry Key Lab of Resource Chemistry, International Joint Laboratory on Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China.
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Guo
authors.affiliation: The Education Ministry Key Lab of Resource Chemistry, International Joint Laboratory on Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China.
authors.forename: Tianxi
authors.initials: T
authors.lastname: Yang
authors.affiliation: The Education Ministry Key Lab of Resource Chemistry, International Joint Laboratory on Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China.
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.affiliation: The Education Ministry Key Lab of Resource Chemistry, International Joint Laboratory on Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China.
authors.forename: Shuyue
authors.initials: S
authors.lastname: Fu
authors.affiliation: The Education Ministry Key Lab of Resource Chemistry, International Joint Laboratory on Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China.
authors.forename: Chuanchuan
authors.initials: C
authors.lastname: Li
authors.affiliation: The Education Ministry Key Lab of Resource Chemistry, International Joint Laboratory on Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China. Electronic address: hfyang@shnu.edu.cn.
authors.forename: Haifeng
authors.initials: H
authors.lastname: Yang
mesh_terms: D018556:Crops, Agricultural / Q000737:chemistry / Q000382:microbiology*; D002523:Edible Grain / Q000737:chemistry / Q000382:microbiology; D005506:Food Contamination / Q000032:analysis*; D005516:Food Microbiology; D057230:Limit of Detection; D053768:Metal Nanoparticles; D012834:Silver / Q000737:chemistry; D013059:Spectrum Analysis, Raman; D014255:Trichothecenes / Q000032:analysis*
chemical_list: D014255:Trichothecenes; D012834:Silver; C007262:deoxynivalenol
keywords: AgNPs; Deoxynivalenol; Surface enhanced Raman scattering (SERS)