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Li J, Zhang L, Zhu F, Song Y, Yu K, Zhao Y. Rapid qualitative detection of titanium dioxide adulteration in persimmon icing using portable Raman spectrometer and Machine learning. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122221. [PMID: 36549243 DOI: 10.1016/j.saa.2022.122221] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 12/02/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
Persimmon icing is the white crystalline powder that adheres to the surface of persimmon cakes when the sugar in the persimmon spills over during processing, which is considered the essence of persimmon. Titanium dioxide is a food additive that is commonly added to the surface of persimmon cakes to impersonate high-quality persimmon cakes. However, excessive titanium dioxide can be harmful to humans, so a quick method is needed to identify persimmon cakes as adulterated. Raman spectroscopy with distinctive advantages of water-insensitivity, real-time, field-deployable, label-free, and fingerprinting-identification has been rapidly developed and used in food quality assurance and safety monitoring. In this study, we investigated Raman spectroscopy integrated with machine learning to assess titanium dioxide adulteration in dried persimmon icing. The adaptive iterative reweighting partial least squares (air-PLS) algorithm as an effective algorithm was used to remove fluorescent background signals in raw Raman spectroscopy. Principal components analysis (PCA) was employed to analyze the spectral data and determine the class memberships, and results showed that 99.9% of information could be explained by PC-1 and PC-2. Compared with extreme learning machine (ELM), support vector machine (SVM), back propagation artificial neural network (BP-ANN), and random forest (RF) models, one-dimensional stack auto encoder convolutional neural network (1D-SAE-CNN) could provide the highest detection accuracy of 0.9825, precision of 0.9824, recall of 0.9825, and f1-score of 0.9824. This study shows that Raman spectroscopy coupled with 1D-SAE-CNN is a promising method to detect titanium dioxide adulteration in persimmon icing.
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Affiliation(s)
- Junmeng Li
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Liang Zhang
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Fengle Zhu
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Yuling Song
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Agricultural Internet of Things, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China; Shaanxi Key Laboratory of Agricultural Information Perception and Intelligent Service, Yangling, Shaanxi 712100, China
| | - Keqiang Yu
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Agricultural Internet of Things, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China; Shaanxi Key Laboratory of Agricultural Information Perception and Intelligent Service, Yangling, Shaanxi 712100, China
| | - Yanru Zhao
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Agricultural Internet of Things, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China; Shaanxi Key Laboratory of Agricultural Information Perception and Intelligent Service, Yangling, Shaanxi 712100, China.
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Hossain MK. Silver-Decorated Silicon Nanostructures: Fabrication and Characterization of Nanoscale Terraces as an Efficient SERS-Active Substrate. Int J Mol Sci 2022; 24:ijms24010106. [PMID: 36613545 PMCID: PMC9820282 DOI: 10.3390/ijms24010106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/08/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Rich and highly dense surface-enhanced Raman (SERS) hotspots available in the SERS-active platform are highly anticipated in SERS measurements. In this work, conventional silicon wafer was treated to have wide exposure to terraces available within the silicon nanostructures (Si-NSs). High-resolution field emission scanning electron microscopic (FESEM) investigations confirmed that the terraces were several microns wide and spread over different steps. These terraces were further decorated with silver nanoparticles (Ag-NPs) of different shapes and sizes to achieve SERS-active hotspots. Based on more than 150 events, a histogram of the size distribution of Ag-NPs indicated a relatively narrow size distribution, 29.64 ± 4.66 nm. The coverage density was estimated to be ~4 × 1010 cm-2. The SERS-activity of Ag-NPs -decorated Si-NSs was found to be enhanced with reference to those obtained in pristine Si-NSs. Finite difference time domain models were developed to support experimental observations in view of electromagnetic (EM) near-field distributions. Three archetype models; (i) dimer of same constituent Ag-NPs, (ii) dimer of different constituent Ag-NPs, and (iii) linear trimer of different constituent Ag-NPs were developed. EM near-field distributions were extracted at different incident polarizations. Si-NSs are well-known to facilitate light confinement, and such confinement can be cascaded within different Ag-NPs-decorated terraces of Si-NSs.
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Affiliation(s)
- Mohammad Kamal Hossain
- Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS), Research Institute, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran 31261, Saudi Arabia
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3
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Fluorescent and colorimetric detection of Norfloxacin with a bifunctional ligand and enzymatic signal amplification system. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Briñas E, González VJ, Herrero MA, Zougagh M, Ríos Á, Vázquez E. SERS-Based Methodology for the Quantification of Ultratrace Graphene Oxide in Water Samples. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9527-9535. [PMID: 35700386 PMCID: PMC9261266 DOI: 10.1021/acs.est.2c00937] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The extensive use of graphene materials in real-world applications has increased their potential release into the environment. To evaluate their possible health and ecological risks, there is a need for analytical methods that can quantify these materials at very low concentrations in environmental media such as water. In this work, a simple, reproducible, and sensitive method to detect graphene oxide (GO) in water samples using the surface-enhanced Raman spectroscopy (SERS) technique is presented. The Raman signal of graphene is enhanced when deposited on a substrate of gold nanoparticles (AuNPs), thus enabling its determination at low concentrations with no need for any preconcentration step. The practical limit of quantification achieved with the proposed method was 0.1 ng mL-1, which is lower than the predicted concentrations for graphene in effluent water reported to date. The optimized procedure has been successively applied to the determination of ultratraces of GO in water samples.
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Affiliation(s)
- Elena Briñas
- Department
of Organic Chemistry, Regional Institute
of Applied Scientific Research (IRICA), 13071 Ciudad Real, Spain
| | - Viviana Jehová González
- Department
of Organic Chemistry, Regional Institute
of Applied Scientific Research (IRICA), 13071 Ciudad Real, Spain
| | - María Antonia Herrero
- Department
of Organic Chemistry, Regional Institute
of Applied Scientific Research (IRICA), 13071 Ciudad Real, Spain
- Department
of Organic Chemistry, Faculty of Science and Chemistry Technologies, University of Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
| | - Mohammed Zougagh
- Department
of Organic Chemistry, Regional Institute
of Applied Scientific Research (IRICA), 13071 Ciudad Real, Spain
- Department
of Analytical Chemistry and Food Technology, Faculty of Pharmacy, University of Castilla-La Mancha (UCLM), 02071 Albacete, Spain
| | - Ángel Ríos
- Department
of Analytical Chemistry and Food Technology, Faculty of Pharmacy, University of Castilla-La Mancha (UCLM), 02071 Albacete, Spain
- Department
of Analytical Chemistry and Food Technology, University of Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
| | - Ester Vázquez
- Department
of Organic Chemistry, Regional Institute
of Applied Scientific Research (IRICA), 13071 Ciudad Real, Spain
- Department
of Organic Chemistry, Faculty of Science and Chemistry Technologies, University of Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
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Xu L, Wu R, Geng X, Zhu X, Xiong Y, Chen T, Ai S. Rapid detection of sulfonamide antibiotics residues in swine urine by surface-enhanced Raman spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120570. [PMID: 34753705 DOI: 10.1016/j.saa.2021.120570] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 06/13/2023]
Abstract
Surface enhanced Raman spectroscopy (SERS) combined with rapid pretreatment technique was used to determine sulfonamide antibiotics (sulfadiazine and sulfathiazole) residue in swine urine. Au nanoparticles (AuNPs) were synthesized as Raman enhance substrate and the extraction of swine urine was purified with primary secondary amine (PSA), octadecyl silane (C18) and graphitized carbon (GCB) to eliminate the interference of the matrix and different dosages of adsorbents (PSA, C18, GCB) were investigated. The results showed that the treatment with C18 of 150 mg, GCB of 200 mg and PSA of 200 mg were an excellent approach for rapidly detecting sulfonamide antibiotics residue in swine urine. Combined with density functional theory calculation (DFT), Raman characteristic peaks of 819, 1102, 1173, 1588 cm-1 and 825, 1127 cm-1 were selected for qualitative and quantitative assessment of sulfadiazine and sulfathiazole in swine urine, respectively. Based on raman characteristic peak of 819 cm-1, a good linear relationship between sulfadiazine concentration and Raman intensity was developed with R2 = 0.9912, and based on raman characteristic peak of 825 cm-1, a good linear relationship between sulfathiazole concentration and Raman intensity was developed with R2 = 0.9941. And recoveries for five unknown concentration samples predicted were 98.47 ∼ 105.18% with relative standard deviation (RSD) of 1.53% ∼ 5.18%. This study demonstrated that SERS coupled with a quick, easy, cheap, effective, rugged, and safe (QuEChERS) method could be employed to rapidly examine the sulfonamide antibiotics residue in swine urine towards its quality and safety monitoring.
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Affiliation(s)
- Lulu Xu
- College of Software, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China; Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China; College of Engineering, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Ruimei Wu
- College of Engineering, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Xiang Geng
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Xiaoyu Zhu
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Yao Xiong
- College of Software, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China; Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Tao Chen
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Shirong Ai
- College of Software, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China.
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6
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From lab to field: Surface-enhanced Raman scattering-based sensing strategies for on-site analysis. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2021.116488] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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7
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Girmatsion M, Mahmud A, Abraha B, Xie Y, Cheng Y, Yu H, Yao W, Guo Y, Qian H. Rapid detection of antibiotic residues in animal products using surface-enhanced Raman Spectroscopy: A review. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108019] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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8
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Jafari S, Guercetti J, Geballa-Koukoula A, Tsagkaris AS, Nelis JLD, Marco MP, Salvador JP, Gerssen A, Hajslova J, Elliott C, Campbell K, Migliorelli D, Burr L, Generelli S, Nielen MWF, Sturla SJ. ASSURED Point-of-Need Food Safety Screening: A Critical Assessment of Portable Food Analyzers. Foods 2021; 10:1399. [PMID: 34204284 PMCID: PMC8235511 DOI: 10.3390/foods10061399] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/07/2021] [Accepted: 06/12/2021] [Indexed: 12/19/2022] Open
Abstract
Standard methods for chemical food safety testing in official laboratories rely largely on liquid or gas chromatography coupled with mass spectrometry. Although these methods are considered the gold standard for quantitative confirmatory analysis, they require sampling, transferring the samples to a central laboratory to be tested by highly trained personnel, and the use of expensive equipment. Therefore, there is an increasing demand for portable and handheld devices to provide rapid, efficient, and on-site screening of food contaminants. Recent technological advancements in the field include smartphone-based, microfluidic chip-based, and paper-based devices integrated with electrochemical and optical biosensing platforms. Furthermore, the potential application of portable mass spectrometers in food testing might bring the confirmatory analysis from the laboratory to the field in the future. Although such systems open new promising possibilities for portable food testing, few of these devices are commercially available. To understand why barriers remain, portable food analyzers reported in the literature over the last ten years were reviewed. To this end, the analytical performance of these devices and the extent they match the World Health Organization benchmark for diagnostic tests, i.e., the Affordable, Sensitive, Specific, User-friendly, Rapid and Robust, Equipment-free, and Deliverable to end-users (ASSURED) criteria, was evaluated critically. A five-star scoring system was used to assess their potential to be implemented as food safety testing systems. The main findings highlight the need for concentrated efforts towards combining the best features of different technologies, to bridge technological gaps and meet commercialization requirements.
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Affiliation(s)
- Safiye Jafari
- Department of Health Sciences and Technology, ETH Zürich, Schmelzbergstrasse 9, 8092 Zürich, Switzerland;
- CSEM SA, Center Landquart, Bahnhofstrasse 1, 7302 Landquart, Switzerland; (D.M.); (L.B.)
| | - Julian Guercetti
- Nanobiotechnology for Diagnostics (Nb4D), Institute for Advanced Chemistry of Catalonia (IQAC) of the Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; (J.G.); (M.-P.M.); (J.-P.S.)
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Ariadni Geballa-Koukoula
- Wageningen Food Safety Research, Wageningen University and Research, P.O. Box 230, 6700 AE Wageningen, The Netherlands; (A.G.-K.); (A.G.); (M.W.N.F.)
| | - Aristeidis S. Tsagkaris
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Technická 5, Dejvice, 166 28 Prague 6, Czech Republic; (A.S.T.); (J.H.)
| | - Joost L. D. Nelis
- Institute for Global Food Security, School of Biological Sciences, Queen’s University, 19 Chlorine Gardens, Belfast BT9 5DL, UK; (J.L.D.N.); (C.E.); (K.C.)
| | - M.-Pilar Marco
- Nanobiotechnology for Diagnostics (Nb4D), Institute for Advanced Chemistry of Catalonia (IQAC) of the Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; (J.G.); (M.-P.M.); (J.-P.S.)
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - J.-Pablo Salvador
- Nanobiotechnology for Diagnostics (Nb4D), Institute for Advanced Chemistry of Catalonia (IQAC) of the Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; (J.G.); (M.-P.M.); (J.-P.S.)
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Arjen Gerssen
- Wageningen Food Safety Research, Wageningen University and Research, P.O. Box 230, 6700 AE Wageningen, The Netherlands; (A.G.-K.); (A.G.); (M.W.N.F.)
| | - Jana Hajslova
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Technická 5, Dejvice, 166 28 Prague 6, Czech Republic; (A.S.T.); (J.H.)
| | - Chris Elliott
- Institute for Global Food Security, School of Biological Sciences, Queen’s University, 19 Chlorine Gardens, Belfast BT9 5DL, UK; (J.L.D.N.); (C.E.); (K.C.)
| | - Katrina Campbell
- Institute for Global Food Security, School of Biological Sciences, Queen’s University, 19 Chlorine Gardens, Belfast BT9 5DL, UK; (J.L.D.N.); (C.E.); (K.C.)
| | - Davide Migliorelli
- CSEM SA, Center Landquart, Bahnhofstrasse 1, 7302 Landquart, Switzerland; (D.M.); (L.B.)
| | - Loïc Burr
- CSEM SA, Center Landquart, Bahnhofstrasse 1, 7302 Landquart, Switzerland; (D.M.); (L.B.)
| | - Silvia Generelli
- CSEM SA, Center Landquart, Bahnhofstrasse 1, 7302 Landquart, Switzerland; (D.M.); (L.B.)
| | - Michel W. F. Nielen
- Wageningen Food Safety Research, Wageningen University and Research, P.O. Box 230, 6700 AE Wageningen, The Netherlands; (A.G.-K.); (A.G.); (M.W.N.F.)
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Shana J. Sturla
- Department of Health Sciences and Technology, ETH Zürich, Schmelzbergstrasse 9, 8092 Zürich, Switzerland;
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Jiang L, Hassan MM, Ali S, Li H, Sheng R, Chen Q. Evolving trends in SERS-based techniques for food quality and safety: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.04.006] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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10
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He J, Xie T, Luo T, Xu Q, Ye F, An J, Yang J, Wang J. Enhanced peroxymonosulfate activation over heterogeneous catalyst Cu 0.76Co 2.24O 4/SBA-15 for efficient degradation of sulfapyridine antibiotic. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 216:112189. [PMID: 33819782 DOI: 10.1016/j.ecoenv.2021.112189] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/11/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
The largest source of resistant bacteria or viruses is the overuse and misuse of antibiotics in humans and animals. These resistant bacteria or viruses may evolve into superbacteria or superviruses, which causes global plague. Therefore, it is significant to find a highly efficiency and low-cost method to eliminate antibiotics in water environment from inappropriate discharge. Here, a highly active and highly stable heterogeneous catalyst, Cu0.76Co2.24O4/SBA-15 (CCS) was prepared for peroxymonosulfate (PMS) activation in aim of decomposing persistent sulfapyridine (SPD). The reaction mechanism was thoroughly investigated via in situ quenching test and in situ electron paramagnetic resonance. Four reactive species, SO4·-, O2·-, 1O2 and ·OH were generated in Cu0.76Co2.24O4/SBA-15/PMS (CCSP) system. The SO4·- and O2·- were dominant active species responsible for SPD degradation. Co(Ⅱ)↔Co(Ⅲ)↔Co(Ⅱ) redox reaction cycle was constructed due to the different redox potential of Co(Ⅱ)/Co(Ⅲ), HSO5-/SO4∙-, and HSO5-/SO5∙-. Interestingly, Cu(Ⅰ) could urge the redox reaction cycle for PMS activation to be more thermodynamically feasible. Therefore, CCS possessed a highly catalytic activity and excellent stability. Meanwhile, the anions interference test indicated Cl-, NO3-, HCO3-, and H2PO4- had almost no inhibitory effect on SPD degradation over this catalytic system. We sincerely expected that this catalyst system would be applied extensively into antibiotics degradation in real water bodies.
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Affiliation(s)
- Jiahong He
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China
| | - Taiping Xie
- School of Materials Science and Engineering, Yangtze Normal University, Chongqing 408100, China; School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China.
| | - Tianhong Luo
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China
| | - Qiang Xu
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China
| | - Feng Ye
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China
| | - Jibin An
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China
| | - Jun Yang
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China
| | - Jiankang Wang
- School of Materials Science and Engineering, Yangtze Normal University, Chongqing 408100, China.
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12
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Erythrosine B – coated gold nanoparticles as an analytical sensing tool for the proper determination of both compounds based on surface-enhanced Raman spectroscopy. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104937] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Zhang ZY, Yao AY, Yue TT, Niu MQ, Wang HY. Bayesian Discriminant Analysis of Yogurt Products Based on Raman Spectroscopy. J AOAC Int 2020; 103:1435-1439. [DOI: 10.1093/jaoacint/qsaa039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/20/2020] [Accepted: 03/11/2020] [Indexed: 12/24/2022]
Abstract
Abstract
Background
The quality discrimination of dairy products is an important basis on which to achieve quality assurance.
Objective
Taking the discriminant analysis of brand yogurt products as an example, a new rapid discriminant method can be constructed.
Method
The first three principal components were selected as the pattern vectors of the samples. Then, at random, 75% of the samples were collected as a training set, and their mean values and covariance matrices were calculated to construct a Gauss Bayesian discriminant model. The remaining 25% of samples were employed as a test set, and the pattern vectors of each sample were input into the above model. Next, the posterior probability of each sample in relation to each category could be obtained. Results: The category corresponding to the maximum posterior probability as the brand classification of each sample was defined.
Conclusions
We constructed a Gauss Bayesian discriminant model to discriminate these different yogurt products after the principal component feature extraction of Raman properties. The results indicate the rationality and wide application prospects of this approach.
Highlights
A fast dairy product discriminant method based on Gauss Bayesian model and Raman spectroscopy was established.
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Affiliation(s)
- Zheng-Yong Zhang
- Nanjing University of Finance and Economics, School of Management Science and Engineering, Nanjing, Jiangsu 210023, The People’s Republic of China
- Hunan University, State Key Laboratory of Chemo/Biosensing and Chemometrics, Changsha, Hunan 410082, The People’s Republic of China
| | - An-Yang Yao
- Nanjing University of Finance and Economics, School of Management Science and Engineering, Nanjing, Jiangsu 210023, The People’s Republic of China
| | - Tong-Tong Yue
- Nanjing University of Finance and Economics, School of Management Science and Engineering, Nanjing, Jiangsu 210023, The People’s Republic of China
| | - Min-Qiu Niu
- Nanjing University of Finance and Economics, School of Management Science and Engineering, Nanjing, Jiangsu 210023, The People’s Republic of China
| | - Hai-Yan Wang
- Zhejiang Gongshang University, School of Management and E-Business, Hangzhou, Zhejiang 310018, The People’s Republic of China
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14
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Huang Y, Wang X, Lai K, Fan Y, Rasco BA. Trace analysis of organic compounds in foods with surface‐enhanced Raman spectroscopy: Methodology, progress, and challenges. Compr Rev Food Sci Food Saf 2020; 19:622-642. [DOI: 10.1111/1541-4337.12531] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 11/22/2019] [Accepted: 12/12/2019] [Indexed: 01/17/2023]
Affiliation(s)
- Yiqun Huang
- School of Chemistry and Food EngineeringChangsha University of Science and Technology Changsha Hunan China
| | - Xiaohui Wang
- College of Food Science and TechnologyShanghai Ocean University Shanghai China
| | - Keqiang Lai
- College of Food Science and TechnologyShanghai Ocean University Shanghai China
| | - Yuxia Fan
- Department of Food Science and Technology, School of Agricultural and BiologyShanghai Jiao Tong University Shanghai China
| | - Barbara A. Rasco
- College of Agriculture and Natural ResourcesUniversity of Wyoming Laramie Wyoming
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15
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Zhai Y, Zheng Y, Ma Z, Cai Y, Wang F, Guo X, Wen Y, Yang H. Synergistic Enhancement Effect for Boosting Raman Detection Sensitivity of Antibiotics. ACS Sens 2019; 4:2958-2965. [PMID: 31533426 DOI: 10.1021/acssensors.9b01436] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this paper, a two-step method is used to prepare a regenerative three-dimensional (3D) ZnO/Ag@Au substrate for developing a superior sensitive surface enhanced Raman scattering (SERS) method for detecting antibiotics. A great electromagnetic enhancement is observed from the as-prepared composite substrate, which is triggered by tuning the electron distribution of metals and semiconductor metal oxide. The strong interaction between target sample and the huge surface area of ZnO/Ag@Au composite promotes the charge transfer to produce promising chemical enhancement. The synergistic physical and chemical enhancement mechanisms are validated by density functional theory and finite difference time domain simulation. Additionally, the presence of light "echo effect" in the 3D structure of ZnO support could also amplify the efficiency of light excitation for Raman scattering. The above-stated merits benefit to boost the Raman scattering detection sensitivity for real samples. The ZnO/Ag@Au-based SERS substrate could detect rhodamine 6G molecules with an enhancement factor of up to 1.48 × 109 and the lowest detectable concentration of 10-10 M. As a real application, antibiotics sulfapyridine in milk is determined by using the proposed SERS protocol, and the limit of detection at 1 × 10-9 M could be reached. As a prospective, the ZnO/Ag@Au-based SERS method would be extended for food safety and biomedicine analysis.
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Affiliation(s)
- Yan Zhai
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Yunshan Zheng
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Zhiyuan Ma
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Yanzheng Cai
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Feng Wang
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Xiaoyu Guo
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Ying Wen
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Haifeng Yang
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
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