1
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Zhang Y, Liu H, Sun B. High-precision luminescent covalent organic frameworks with sp 2-carbon connection for visual detecting of nereistoxin-related insecticide. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130866. [PMID: 36753911 DOI: 10.1016/j.jhazmat.2023.130866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/08/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
A new strategy for nereistoxin-related insecticide, cartap, detection in foodstuff and the environment is of great importance due to its poisoning of human beings through direct exposure or via biomagnification. Herein, a highly planar conjugated sp2 carbon-connected COF (F-Csp2-TT) was synthesized via Knoevenagel condensation reaction followed by the post-modification to develop a new platform for cartap visual detection in agricultural and food samples. The synergistic effect of highly planar conjugation and dense functional groups in the opened framework endowed F-Csp2-TT with a high-precision luminescence sensing performance. Meanwhile, the exquisitely designed F-Csp2-TT presented robust chemical stability, radiation stability, and good reproducibility. Benefiting from these advantages, high-precision luminescent F-Csp2-TT achieves a low detection limit of 0.51 μg/L to cartap over the range of 1-300 μg/L (R2=0.9938), and the recoveries percentage in food products was calculated as 95.90%- 119.3%. More significantly, the smartphone-based high-precision platform by F-Csp2-TT was established and successfully applied to portable monitoring of cartap and water content. Therefore, our work revealed the enormous potential of Csp2-connected COF, which opened a new situation for insecticide detection.
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Affiliation(s)
- Ying Zhang
- School of Food and Health, Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Huilin Liu
- School of Food and Health, Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China.
| | - Baoguo Sun
- School of Food and Health, Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
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2
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Shi Q, Wang T, Zheng Y, Guo Q, Wang B, Zhu S. Sensitive Colorimetric Determination of Cyromazine Using a Gold Nanoparticle (Au NP) Based Sensor with Smartphone Detection. ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2150202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Qiang Shi
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Ting Wang
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Ying Zheng
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Qian Guo
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Bing Wang
- Center for Disease Control and Prevention, Yangzhou, Jiangsu, China
| | - Sujuan Zhu
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China
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3
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Yang SH, Choi H. Simultaneous determination of nereistoxin insecticides in foods of animal origins by combining pH-dependent reversible partitioning with hydrophilic interaction chromatography-mass spectrometry. Sci Rep 2022; 12:10208. [PMID: 35715575 PMCID: PMC9205972 DOI: 10.1038/s41598-022-14520-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/08/2022] [Indexed: 11/09/2022] Open
Abstract
Although nereistoxin insecticides (NIs) are banned for animal husbandry operations, they are still used because of their high insecticidal activities. Therefore, a reliable residue analysis method for the simultaneous detection of cartap, bensultap, thiocyclam, and nereistoxin in foods of animal origins, including beef, pork, chicken, milk, and eggs, was developed using hydrophilic interaction liquid chromatography-mass spectrometry (HILIC-LC-MS/MS). The NIs were extracted with an acidic cysteine and formate buffer solution and hydrolyzed to nereistoxin. The molarity and pH of the buffer were optimized at 20 mM and 3, respectively, to keep the pH of the extracts at 4-5. pH-dependent acid-base partitioning coupled with salting-out-assisted liquid-liquid extraction using acetonitrile was performed for purification and for the direct introduction of the extracts to LC. The optimal pH values were 5 and 9 for the acid-base partitioning. Nereistoxin quantitation was achieved with consistent column retention (RSD < 0.6%) and a high degree of separation (N > 106). The matrix-dependent method limit of quantitation was 2 μg nereistoxin/kg, and the calibration curve showed good linearity (R2 > 0.998). The recovery efficiencies were in the range of 89.2-109.9% with relative standard deviations less than 10%, and matrix effects did not exceed ± 10%, which satisfied the criteria outlined in the European SANTE/12682/2019 guidelines.
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Affiliation(s)
- Seung-Hyun Yang
- Department of Life and Environmental Sciences, Wonkwang University, Iksan, 54538, Republic of Korea.,Institute of Life Science and Natural Resources, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Hoon Choi
- Department of Life and Environmental Sciences, Wonkwang University, Iksan, 54538, Republic of Korea. .,Institute of Life Science and Natural Resources, Wonkwang University, Iksan, 54538, Republic of Korea.
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4
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Zhang Y, Xu Y, Liu H, Sun B. Ultrahigh sensitivity nitrogen-doping carbon nanotubes-based metamaterial-free flexible terahertz sensing platform for insecticides detection. Food Chem 2022; 394:133467. [PMID: 35717347 DOI: 10.1016/j.foodchem.2022.133467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 05/20/2022] [Accepted: 06/09/2022] [Indexed: 11/24/2022]
Abstract
With the rapid advances in terahertz (THz) spectroscopy, metamaterial-free THz sensors have been of importance due to efficient cost, high sensitivity and overcoming the limited tunability of the optical constants of metals. Here, a metamaterial-free and flexible THz sensor based on nitrogen-doping carbon nanotubes (N-CNTs) coupled with signal-enhancing Au NPs was proposed for detecting nereistoxin-related insecticides (NRIs). Sensitivity and selectivity for NRIs detection have been realized over the range of 3.3-100 μg/L with good linear fitting (R2 ≥ 0.9003) and LOD was 1.33 μg/L. Accuracy was validated by the recovery rates of 105.87-109.75% of NRI in spiked food-matrix sample. These results indicated the developed signal-enhancing THz method, validated by LC-MS/MS, exhibited high sensitivity and simplicity detection, which has noteworthy potential for applications in food safety and environment monitoring.
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Affiliation(s)
- Ying Zhang
- Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Yuqing Xu
- Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Huilin Liu
- Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China.
| | - Baoguo Sun
- Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
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5
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Recent developments on nanomaterial probes for detection of pesticide residues: A review. Anal Chim Acta 2022; 1215:339974. [DOI: 10.1016/j.aca.2022.339974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 05/20/2022] [Accepted: 05/20/2022] [Indexed: 11/20/2022]
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6
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Zhang J, Pan L, Jing J, Zhuang M, Xin J, Zhou Y, Feng X, Zhang H. Development, optimization, and validation of a method for detection of cartap, thiocyclam, thiosultap-monosodium, and thiosultap-disodium residues in plant foods by GC-ECD. Food Chem 2022; 371:131198. [PMID: 34600370 DOI: 10.1016/j.foodchem.2021.131198] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 08/23/2021] [Accepted: 09/17/2021] [Indexed: 11/16/2022]
Abstract
A method was developed for the simultaneous determination of four nereistoxin-related pesticides, viz. cartap, thiocyclam, thiosultap-monosodium, and thiosultap-disodium, in 20 plant foods. The samples were extracted using a hydrochloric acid solution containing cysteine hydrochloride, derivatized to nereistoxin under alkaline conditions, and analyzed by gas chromatography with electron capture detector. The average recoveries of the method were 72-108%, with relative standard deviations (RSDs) of 0.3-14.7% (n = 1200, p < 0.05). The intermediate precision and reproducibility experiments using established methods were also carried out. All the results passed the Cochrane and Grubbs tests (n = 2400, p < 0.05). The RSDs of intermediate precision and RSDs of reproducibility among laboratories were in the ranges 1.7-10.9% and 2.4-15.3% (n = 2400, p < 0.05), respectively, indicating that the accuracy and precision of the method are satisfactory. This method can be used to detect nereistoxin-related pesticides in plant foods.
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Affiliation(s)
- Jingcheng Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, PR China
| | - Lixiang Pan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, PR China
| | - Jing Jing
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, PR China
| | - Ming Zhuang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, PR China
| | - Jianing Xin
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, PR China
| | - Yang Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, PR China
| | - Xiaoxiao Feng
- College of Plant Protection, Hebei Agricultural University, Hebei 071000, PR China.
| | - Hongyan Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, PR China.
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7
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Zhang Y, Yuan X, Jiang W, Liu H. Determination of nereistoxin-related insecticide via quantum-dots-doped covalent organic frameworks in a molecularly imprinted network. Mikrochim Acta 2020; 187:464. [DOI: 10.1007/s00604-020-04435-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 07/07/2020] [Indexed: 12/24/2022]
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8
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Xie S, Tang C, Liu H, Zhang TE, Tang Y, Teng L, Zhang J. An electroanalytical platform for nereistoxin-related insecticide detection based on DNA conformational switching and exonuclease III assisted target recycling. Analyst 2020; 145:946-952. [PMID: 31825415 DOI: 10.1039/c9an02029b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, an electroanalytical platform for nereistoxin (NRT)-related insecticide detection is proposed on the basis of NRT induced DNA conformational switching and exonuclease III (Exo III) assisted target recycling. NRT-related insecticides were first hydrolyzed and converted into NRT with two thiol groups (-SH). Then, a cytosine-Ag+-cytosine (C-Ag+-C) mismatched base pair was adopted to induce a blunt-ended hairpin configuration of HP DNA. In the presence of converted NRT, it could take up Ag+ from HP DNA to change its conformation from a hairpin to single-stranded structure (HP ssDNA). Thereafter, the obtained HP ssDNA was further hybridized with an H1 hairpin probe on the electrode surface to trigger the Exo III cleavage process, releasing HP ssDNA for recycling leaving the G-quadruplex fragment of H1, which was used for hemin/G-quadruplex complex formation. The reversible redox reaction of Fe(iii)/Fe(ii) of hemin gave a remarkable electrochemical response for quantitative determination of the NRT-related insecticides. As an analytical model, a low detection limit of 3.9 ng L-1 and a wide linear range of 0.01-1500 μg L-1 with excellent selectivity were achieved for cartap detection. The proposed method also displayed great applicability for cartap detection in agricultural products.
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Affiliation(s)
- Shunbi Xie
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies, College of Chemistry & Environmental Engineering (Chongqing University of Arts and Sciences), Chongqing 402160, PR China.
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9
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Zhang Y, Zhang D, Liu J, Wang S, Liu H. A high photoluminescence sensor for selective detection of cartap based on functionalized VBimBF4B ionic liquid-strengthened sulfur-doped carbon nanodots. NEW J CHEM 2019. [DOI: 10.1039/c9nj00728h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photoluminescence sensor based on functionalized room temperature ionic liquid-strengthened sulfur-doped carbon nanodots is developed for real-time monitoring of cartap.
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Affiliation(s)
- Ying Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Beijing Engineering and Technology Research Center of Food Additives
- Beijing Technology and Business University
- Beijing
- China
| | - Dianwei Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Beijing Engineering and Technology Research Center of Food Additives
- Beijing Technology and Business University
- Beijing
- China
| | - Jingmin Liu
- Tianjin Key Laboratory of Food Science and Health
- School of Medicine
- Nankai University
- Tianjin
- China
| | - Shuo Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Beijing Engineering and Technology Research Center of Food Additives
- Beijing Technology and Business University
- Beijing
- China
| | - Huilin Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Beijing Engineering and Technology Research Center of Food Additives
- Beijing Technology and Business University
- Beijing
- China
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10
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Peng R, He H, Wang Q, Yan X, Yu Q, Qin H, Lei Y, Luo L, Feng Y. Cu(Ⅱ) triggering redox-regulated anti-aggregation of gold nanoparticles for ultrasensitive visual sensing of iodide. Anal Chim Acta 2018; 1036:147-152. [DOI: 10.1016/j.aca.2018.06.080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 06/13/2018] [Accepted: 06/29/2018] [Indexed: 12/17/2022]
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11
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Lv L, Jin Y, Kang X, Zhao Y, Cui C, Guo Z. PVP-coated gold nanoparticles for the selective determination of ochratoxin A via quenching fluorescence of the free aptamer. Food Chem 2018; 249:45-50. [PMID: 29407930 DOI: 10.1016/j.foodchem.2017.12.087] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 12/14/2017] [Accepted: 12/27/2017] [Indexed: 01/19/2023]
Abstract
This paper describes an aptamer/gold nanoparticle-based assay for ochratoxin A (OTA) detection. This assay is based on the use of an aptamer labeled with carboxyfluorescein (FAM) at its 5'-end and gold nanoparticles (AuNPs) that act as quenchers of fluorescence. When OTA is absent in the system, the fluorescently labeled aptamers are adsorbed on the surface of AuNPs. The fluorescence signal of the fluorescein-labeled OTA aptamer generated is quenched by the fluorescence resonance energy transfer effect of AuNPs. When OTA is present in the system, the fluorescently labeled aptamer binds to OTA and forms a folded structure, which can resist the adsorption of AuNPs. Thus, the fluorescent signal can be retained. The detection limit of this sensing platform is 5 nM, and the linear detection range is 10-1000 nM (R2 = 0.994). The procedure was validated by the quantitation of OTA in spiked ginger powder samples and were found to be free of interference by the sample matrix. The recoveries and the relative standard deviation varied from 89.0% to 117.8% and from 1.9% to 6.3%, respectively.
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Affiliation(s)
- Lei Lv
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Yanbian University, Ministry of Education, Yanji 133002, China
| | - Yongdong Jin
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xiaojiao Kang
- School of Electrical Engineering and Intelligentization, Dongguan University of Technology, Dongguan 523808, China
| | - Yangyang Zhao
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Chengbi Cui
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Yanbian University, Ministry of Education, Yanji 133002, China
| | - Zhijun Guo
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Yanbian University, Ministry of Education, Yanji 133002, China.
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12
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Visual and Colorimetric Sensing of Metsulfuron-Methyl by Exploiting Hydrogen Bond-Induced Anti-Aggregation of Gold Nanoparticles in the Presence of Melamine. SENSORS 2018; 18:s18051595. [PMID: 29772778 PMCID: PMC5982417 DOI: 10.3390/s18051595] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 05/11/2018] [Accepted: 05/15/2018] [Indexed: 11/17/2022]
Abstract
Various highly sensitive and selective analytical methods have been used to monitor metsulfuron-methyl residue in the environment. However, these methods involve costly instruments and complex, time-consuming operations performed in laboratories. Here, a rapid, convenient, and sensitive colorimetric sensor based on anti-aggregation of gold nanoparticles (AuNPs) is demonstrated for the rapid detection of metsulfuron-methyl in agricultural irrigation water. The AuNPs could be induced to aggregate in the presence of melamine and exhibited a distinct color change from wine-red to blue. The aggregation was suppressed by a strong hydrogen-bonding interaction between metsulfuron-methyl and melamine. The differences of the absorbance at 523 nm (ΔA523) and the color change was linearly related to metsulfuron-methyl concentration over the range 0.1⁻100 mg/L, as observed visually and by UV-vis (Ultraviolet-visible) spectrometry. The detection limit of the sensor was as low as 0.05 mg/L (signal/noise = 3), and was used to determine metsulfuron-methyl in spiked water and in agricultural irrigation water samples. Recoveries were in the range of 71.2⁻100.4%, suggesting that the colorimetric sensor was suitable for the determination of metsulfuron-methyl in agricultural water samples.
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13
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Ivrigh ZJN, Fahimi-Kashani N, Hormozi-Nezhad MR. Aggregation-based colorimetric sensor for determination of prothioconazole fungicide using colloidal silver nanoparticles (AgNPs). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 187:143-148. [PMID: 28683369 DOI: 10.1016/j.saa.2017.06.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/17/2017] [Accepted: 06/25/2017] [Indexed: 06/07/2023]
Abstract
There is a growing interest in developing high-performance sensors monitoring fungicides, due to their broadly usage and their adverse effects on humans and wildlife. In the present study, a colorimetric probe has been proposed for detection of prothioconazole based on aggregation of unmodified silver nanoparticles (AgNPs). Under optimized condition, linear relationships between the concentration of prothioconazole and the absorbance ratio of A500/A395 were found over the range of 0.01μg·mL-1 to 0.4μg·mL-1 with quantification limit as low as 1.7ng·mL-1. Furthermore, AgNPs color change from yellow to pink-orange in presence of prothioconazole, indicates highly sensitive naked-eye colorimetric assay for quantifying prothioconazole in real applications. The proposed approach was successfully used for the determination of prothioconazole in wheat flour and paddy water sample.
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Affiliation(s)
| | | | - M Reza Hormozi-Nezhad
- Department of Chemistry, Sharif University of Technology, Tehran 11155-9516, Iran; Institute of Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran.
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14
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Shimada H, Noguchi S, Yamamoto M, Nishiyama K, Kitamura Y, Ihara T. Electrochemical Sensing of Neurotoxic Agents Based on Their Electron Transfer Promotion Effect on an Au Electrode. Anal Chem 2017; 89:5742-5747. [DOI: 10.1021/acs.analchem.6b04229] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hiroshi Shimada
- Division
of Materials Science, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku,
Kumamoto 860-8555, Japan
- Forensic
Science Laboratory, Nagasaki Prefectural Police H.Q., 4-8 Manzai-machi, Nagasaki 850-8548, Japan
| | - Shiori Noguchi
- Division
of Materials Science, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku,
Kumamoto 860-8555, Japan
| | - Masahiro Yamamoto
- Department
of Chemistry, Konan University, 8-9-1 Okamoto, Higashi-Nada, Kobe, Hyogo 658-8501, Japan
| | - Katsuhiko Nishiyama
- Division
of Materials Science, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku,
Kumamoto 860-8555, Japan
| | - Yusuke Kitamura
- Division
of Materials Science, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku,
Kumamoto 860-8555, Japan
| | - Toshihiro Ihara
- Division
of Materials Science, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku,
Kumamoto 860-8555, Japan
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15
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Shen L, Wang C, Chen J. Photometric determination of the activity of cellulase and xylanase via measurement of formation of gold nanoparticles. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1979-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Ultrasensitive photometric and visual determination of organophosphorus pesticides based on the inhibition of enzyme-triggered formation of core-shell gold-silver nanoparticles. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1939-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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17
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Simultaneous photometric microplate assay for free and total thiamine using gold nanoparticles and alkaline phosphatase. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1767-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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NISHIYAMA K, TSURUTA K, IKEDA M, YOSHIMOTO S, SHIMADA H, KITAMURA Y, IHARA T. Sensitive Electrochemical Detection of Nereistoxin by Reductive Desorption from Au(111) and Au(100). ELECTROCHEMISTRY 2016. [DOI: 10.5796/electrochemistry.84.349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Katsuhiko NISHIYAMA
- Graduate School of Science and Technology, Kumamoto University
- Kumamoto Institute for Photo-electro Organics (Phoenics)
| | - Keisuke TSURUTA
- Graduate School of Science and Technology, Kumamoto University
| | - Mizuki IKEDA
- Graduate School of Science and Technology, Kumamoto University
| | - Soichiro YOSHIMOTO
- Priority Organization for Innovation and Excellence, Kumamoto University
- Kumamoto Institute for Photo-electro Organics (Phoenics)
| | - Hiroshi SHIMADA
- Graduate School of Science and Technology, Kumamoto University
- Forensic Science Laboratory, Nagasaki Prefectural Police Headquarters
| | - Yusuke KITAMURA
- Graduate School of Science and Technology, Kumamoto University
| | - Toshihiro IHARA
- Graduate School of Science and Technology, Kumamoto University
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