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Yao Y, Liu Y, Zhang H, Wang X. A highly sensitive and low-background fluorescence assay for pesticides residues based on hybridization chain reaction amplification assisted by magnetic separation. Methods Appl Fluoresc 2019; 7:035006. [PMID: 31042679 DOI: 10.1088/2050-6120/ab1e7a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Due to the concern over food safety, it is important to detect the pesticides residues in agricultural products. Here, a highly sensitive and low background fluorescent strategy for the detection of pesticides residues has been developed. The fluorescence intensity of N-methyl mesoporphyrin IX (NMM) binding G-quadruplex could be turn off because of inhibiting effect of the pesticides on the acetylcholinesterase (AChE) activity. For that, four single-stranded DNAs (named linker, trigger, H1 and H2, respectively) are rational designed and T-Hg-T mismatches duplex DNAs as a recognizer combined with the separation of magnetic beads. The design of hybridization chain reaction (HCR) amplification strategy assisted by magnetic separation has been adopted to improve the detection sensitivity. In the presence of pesticides, the amount of the thiol group generated by hydrolysis reaction of acetylcholine (ACh) is reduced, lead to release of less trigger DNA. Therefor subsequent HCR process is retarded with decreased fluorescence intensity. The reduced fluorescence intensity has a quantitative relationship with the pesticide concentration. The limit of detection of chlorpyrifos was estimated to be 2.0 ng ml-1. It has been applied to detect the pesticides residues in real samples.
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Affiliation(s)
- Yueyue Yao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People's Republic of China
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Wang P, Li H, Hassan MM, Guo Z, Zhang ZZ, Chen Q. Fabricating an Acetylcholinesterase Modulated UCNPs-Cu 2+ Fluorescence Biosensor for Ultrasensitive Detection of Organophosphorus Pesticides-Diazinon in Food. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4071-4079. [PMID: 30888170 DOI: 10.1021/acs.jafc.8b07201] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this study, a highly sensitive upconversion fluorescence (FL) biosensor was developed for the detection of organophosphorus pesticides (OPs) based on an acetylcholinesterase (AChE) modulated FL "off-on-off" strategy. The luminescence of synthesized UCNPs could be quenched strongly by Cu2+ due to an energy transfer effect. Upon addition of AChE and acetylthiocholine (ATCh), the enzymatic hydrolysate (thiocholine) could seize Cu2+ from UCNPs-Cu2+ mixture, resulting in the quenched FL triggered on. OPs could irreversibly impede the activity of AChE, which caused the formation of thiocholine to decrease, thus, reduced the recovery of FL. Under the optimum conditions, a linear detection range from 0.1 to 50 ng/mL was achieved for the representative OPs (diazinon) with LOD of 0.05 ng/mL. Furthermore, the ability of the biosensor to detect OPs was also confirmed in adulterated environmental and agricultural samples. In validation analysis, the proposed sensor showed satisfactory results ( p > 0.05) with GC-MS.
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Affiliation(s)
- Pingyue Wang
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Huanhuan Li
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Md Mehedi Hassan
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Zhiming Guo
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Zheng-Zhu Zhang
- State Key Laboratory of Tea Plant Biology and Utilization , Anhui Agricultural University , Hefei 230036 , China
| | - Quansheng Chen
- School of Food and Biological Engineering , Jiangsu University , Zhenjiang 212013 , China
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Shamagsumova RV, Yu. Efimova O, Gorbatchuk VV, Evtugyn VG, Stoikov II, Evtugyn GA. Electrochemical Acetylcholinesterase Biosensor Based on Polylactide–Nanosilver Composite for the Determination of Anti-dementia Drugs. ANAL LETT 2019. [DOI: 10.1080/00032719.2018.1557202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Rezeda V. Shamagsumova
- Chemistry Institute named after A.M. Butlerov of Kazan Federal University, Kazan, Russian Federation
| | - Olga Yu. Efimova
- Chemistry Institute named after A.M. Butlerov of Kazan Federal University, Kazan, Russian Federation
| | | | - Vladimir G. Evtugyn
- Interdisciplinary Center of Analytical Microscopy, Kazan Federal University, Kazan, Russian Federation
| | - Ivan I. Stoikov
- Chemistry Institute named after A.M. Butlerov of Kazan Federal University, Kazan, Russian Federation
| | - Gennady A. Evtugyn
- Chemistry Institute named after A.M. Butlerov of Kazan Federal University, Kazan, Russian Federation
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Palanivelu J, Chidambaram R. Acetylcholinesterase with mesoporous silica: Covalent immobilization, physiochemical characterization, and its application in food for pesticide detection. J Cell Biochem 2019; 120:10777-10786. [DOI: 10.1002/jcb.28369] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 12/06/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Jeyanthi Palanivelu
- Department of Industrial Biotechnology School of Bio‐Sciences and Technology, Vellore Institute of Technology Vellore India
| | - Ramalingam Chidambaram
- Department of Industrial Biotechnology School of Bio‐Sciences and Technology, Vellore Institute of Technology Vellore India
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Wang M, Su K, Cao J, She Y, Abd El-Aty AM, Hacımüftüoğlu A, Wang J, Yan M, Hong S, Lao S, Wang Y. "Off-On" non-enzymatic sensor for malathion detection based on fluorescence resonance energy transfer between β-cyclodextrin@Ag and fluorescent probe. Talanta 2018; 192:295-300. [PMID: 30348392 DOI: 10.1016/j.talanta.2018.09.060] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 09/08/2018] [Accepted: 09/18/2018] [Indexed: 01/01/2023]
Abstract
Here, we developed a novel non-enzymatic rapid testing method for determination of organophosphate pesticide (malathion) in water. In principle, target molecule can block the Fluorescence resonance energy transfer (FRET) between chemical fluorescent probe (energy donor) and β-cyclodextrin-coated silver nanoparticles (@AgNP) (receptor). The effects of malathion on the dynamics of fluorescent probe and β-cyclodextrin@AgNP were evaluated and their properties were further characterized. The current methodology showed a good sensitivity of 0.01 μg/mL represented as a limit of detection (LOD) and the calibration curve was linear over the concentration range of 0.1-25 μg/mL. Recovery rate from water samples spiked at 3 different concentration levels (0.3, 0.4, and 0.6 μg/mL) showed satisfactory range between 83% and 101%.
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Affiliation(s)
- Miao Wang
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100193 Beijing, China; Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, 100193 Beijing, China
| | - Kun Su
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100193 Beijing, China; Baotou Medical College, 014040 Baotou, China
| | - Jing Cao
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100193 Beijing, China
| | - Yongxin She
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100193 Beijing, China; Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, 100193 Beijing, China.
| | - A M Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt; Department of Medical Pharmacology, Medical Faculty, Ataturk University, 25240 Erzurum, Turkey
| | - Ahmet Hacımüftüoğlu
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, 25240 Erzurum, Turkey
| | - Jing Wang
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100193 Beijing, China; Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, 100193 Beijing, China; Agro-products Quality Safety and Testing Technology Research Institute, Guangxi Academy of Agricultural Sciences, 53003 Nanning, China.
| | - Mengmeng Yan
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100193 Beijing, China; Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, 100193 Beijing, China
| | - Sihui Hong
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100193 Beijing, China; Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, 100193 Beijing, China
| | - Shuibing Lao
- Agro-products Quality Safety and Testing Technology Research Institute, Guangxi Academy of Agricultural Sciences, 53003 Nanning, China
| | - Yanli Wang
- Agro-products Quality Safety and Testing Technology Research Institute, Guangxi Academy of Agricultural Sciences, 53003 Nanning, China
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Immobilization of acetylcholinesterase on functionalized SBA-15 mesoporous molecular sieve for detection of organophosphorus and carbamate pesticide. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.10.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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de Castro AA, Assis LC, Silva DR, Corrêa S, Assis TM, Gajo GC, Soares FV, Ramalho TC. Computational enzymology for degradation of chemical warfare agents: promising technologies for remediation processes. AIMS Microbiol 2017; 3:108-135. [PMID: 31294152 PMCID: PMC6604975 DOI: 10.3934/microbiol.2017.1.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 02/14/2017] [Indexed: 11/18/2022] Open
Abstract
Chemical weapons are a major worldwide problem, since they are inexpensive, easy to produce on a large scale and difficult to detect and control. Among the chemical warfare agents, we can highlight the organophosphorus compounds (OP), which contain the phosphorus element and that have a large number of applications. They affect the central nervous system and can lead to death, so there are a lot of works in order to design new effective antidotes for the intoxication caused by them. The standard treatment includes the use of an anticholinergic combined to a central nervous system depressor and an oxime. Oximes are compounds that reactivate Acetylcholinesterase (AChE), a regulatory enzyme responsible for the transmission of nerve impulses, which is one of the molecular targets most vulnerable to neurotoxic agents. Increasingly, enzymatic treatment becomes a promising alternative; therefore, other enzymes have been studied for the OP degradation function, such as phosphotriesterase (PTE) from bacteria, human serum paraoxonase 1 (HssPON1) and diisopropyl fluorophosphatase (DFPase) that showed significant performances in OP detoxification. The understanding of mechanisms by which enzymes act is of extreme importance for the projection of antidotes for warfare agents, and computational chemistry comes to aid and reduce the time and costs of the process. Molecular Docking, Molecular Dynamics and QM/MM (quantum-mechanics/molecular-mechanics) are techniques used to investigate the molecular interactions between ligands and proteins.
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Affiliation(s)
| | - Letícia C. Assis
- Department of Chemistry, Federal University of Lavras, 37200-000, Lavras, Brazil
| | - Daniela R. Silva
- Department of Chemistry, Federal University of Lavras, 37200-000, Lavras, Brazil
| | - Silviana Corrêa
- Department of Chemistry, Federal University of Lavras, 37200-000, Lavras, Brazil
| | - Tamiris M. Assis
- Department of Chemistry, Federal University of Lavras, 37200-000, Lavras, Brazil
| | - Giovanna C. Gajo
- Department of Chemistry, Federal University of Lavras, 37200-000, Lavras, Brazil
| | - Flávia V. Soares
- Department of Chemistry, Federal University of Lavras, 37200-000, Lavras, Brazil
| | - Teodorico C. Ramalho
- Department of Chemistry, Federal University of Lavras, 37200-000, Lavras, Brazil
- Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, Rokitanskeho 62, 50003, Czech Republic
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Colorimetric biosensor for the assay of paraoxon in environmental water samples based on the iodine-starch color reaction. Anal Chim Acta 2017; 967:59-63. [PMID: 28390486 DOI: 10.1016/j.aca.2017.02.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 02/24/2017] [Accepted: 02/25/2017] [Indexed: 01/08/2023]
Abstract
In this work, a new colorimetric biosensor for the assay of paraoxon was developed via the conventional iodine-starch color reaction and multi-enzyme cascade catalytic reactions. In the presence of acetylcholine chloride, acetylcholinesterase (AChE) and choline oxidase (ChO) catalyzed the formation of H2O2, which then activated horseradish peroxidase (HRP) to catalyze the oxidation of KI to produce an iodine-starch color reaction. Upon exposure to paraoxon, the catalytic activity of AChE was inhibited and less H2O2 generated, resulting in a decrease in the production of I2 and a drop in the intensity of solution color. This colorimetric biosensor showed high sensitivity for the assay of paraoxon with a limit of detection 4.7 ppb and was applied for the assay of paraoxon in spiked real samples. By employing the conventional iodine-starch color reaction, this biosensor has the potential of on-site assay of OPs residues in environmental samples.
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A. de Castro A, C. Assis L, R. Silva D, Corrêa S, M. Assis T, C. Gajo G, V. Soares F, C. Ramalho T. Computational enzymology for degradation of chemical warfare agents: promising technologies for remediation processes. AIMS Microbiol 2017. [DOI: 10.3934/microbiol.2017.2.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Colorimetric sensing of malathion using palladium-gold bimetallic nanozyme. Biosens Bioelectron 2016; 92:280-286. [PMID: 27840040 DOI: 10.1016/j.bios.2016.11.011] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 11/03/2016] [Accepted: 11/04/2016] [Indexed: 11/23/2022]
Abstract
In this work, a simple, sensitive and selective label free colorimetric assay using palladium-gold nanorod as nanozyme is reported for malathion detection. Study investigates the peroxidase potential of the nanozyme on colorimetric substrates and explores the effect of selected organophosphates on their enzyme mimetic activity. Palladium-gold nanozyme shows excellent peroxidase mimetic activity with O-phenylenediamine in the presence of hydrogen peroxide. Its Kinetic parameters Km and kcat are better than horseradish peroxidase which makes it a superior enzyme. Nanozyme is stable over a broad temperature range (4-70°C) and shows high peroxidase activity from 2 to 6pH. The peroxidase activity of nanozyme is selectively quenched with increasing concentration of malathion and is the principle of developed assay. Assay has a lowest detection limit of 60ng/ml and shows no cross-reaction with other analogous organophosphates or metal salts. Validation on tap water samples spiked with different concentrations of malathion shows good recovery in the range of 80-106%. Assay also displays good intra and inter-assay precision which lie in the range of 2.7-6.1% and 3.2-5.9% respectively. This study demonstrated the catalytic potential of palladium-gold nanorods, which can be employed as nanozyme for developing highly sensitive detection methods.
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