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Marzouk SAM, Alyammahi AR, Fanjul-Bolado P. Development and Characterization of Novel Flow Injection, Thin-Layer, and Batch Cells for Electroanalytical Applications Using Screen-Printed Electrodes. Anal Chem 2021; 93:16690-16699. [PMID: 34851103 DOI: 10.1021/acs.analchem.1c04337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the present paper, the design, fabrication, and analytical applications of three novel cells for flow injection, thin-layer, and batch electrochemical measurements using screen-printed electrode chips (SPECs) are described. Each cell consisted of an acrylic base and a transparent acrylic cover. The essential construction feature of each cell base was a cavity to accommodate the SPEC, whereas the construction features of the clear acrylic cover determined the cell shape and its function. The presented cells offered several common advantages, which include (i) convenient electrical connection of the SPEC to any potentiostat without the need for special cables, (ii) the SPEC was completely contained within the cell body, which eliminated the risk of its breakage, (iii) suitable for use with a large number of commercially available SPECs, and (iv) excellent SPEC sealing. The flow cell offered additional advantages of convenient customization of the cell dead volume and convenient visual inspection of the surface and the vicinity of SPEs. The presented thin-layer cell is the first report on a dedicated cell which realized a near-ideal thin-layer steady-state voltammetry using SPECs. The universal batch cell (UBC) offered extreme versatility and proved suitable for all batch applications in sample volumes ranging from 25 μL to 40 mL with an optional controlled temperature and atmosphere. Moreover, a novel way to achieve stirred-solution chronoamperometry and hydrodynamic voltammetry using SPECs (with superior signal-to-noise ratios) using the UBC is described. Electrochemical measurements to demonstrate the merits and the applicability of all cells are also presented.
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Affiliation(s)
- Sayed A M Marzouk
- Department of Chemistry, UAE University, P.O. Box 15551 Al Ain, United Arab Emirates
| | - Aisha R Alyammahi
- Department of Chemistry, UAE University, P.O. Box 15551 Al Ain, United Arab Emirates
| | - Pablo Fanjul-Bolado
- Metrohm DropSens S.L., Edificio CEEI-Parque Tecnológico de Asturias, 33428 Llanera, Spain
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2
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Barros Azeredo NF, Ferreira Santos MS, Sempionatto JR, Wang J, Angnes L. Screen-Printed Technologies Combined with Flow Analysis Techniques: Moving from Benchtop to Everywhere. Anal Chem 2021; 94:250-268. [PMID: 34851628 DOI: 10.1021/acs.analchem.1c02637] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Screen-printed electrodes (SPEs) coupled with flow systems have been reported in recent decades for an ever-growing number of applications in modern electroanalysis, aiming for portable methodologies. The information acquired through this combination can be attractive for future users with basic knowledge, especially due to the increased measurement throughput, reduction in reagent consumption and minimal waste generation. The trends and possibilities of this set rely on the synergistic behavior that maximizes both SPE and flow analyses characteristics, allowing mass production and automation. This overview addresses an in-depth update about the scope of samples, target analytes, and analytical throughput (injections per hour, limits of detection, linear range, etc.) obtained by coupling injection techniques (FIA, SIA, and BIA) with SPE-based electrochemical detection.
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Affiliation(s)
- Nathália Florência Barros Azeredo
- Institute of Chemistry, University of São Paulo, São Paulo 05508-070, Brazil.,Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | | | - Juliane R Sempionatto
- Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | - Joseph Wang
- Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | - Lúcio Angnes
- Institute of Chemistry, University of São Paulo, São Paulo 05508-070, Brazil
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3
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Squissato AL, Munoz RAA, Banks CE, Richter EM. An Overview of Recent Electroanalytical Applications Utilizing Screen‐Printed Electrodes Within Flow Systems. ChemElectroChem 2020. [DOI: 10.1002/celc.202000175] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- André L. Squissato
- Institute of Chemistry Federal University of Uberlandia Av. João Naves de Ávila 2121 – Uberlandia, Minas Gerais Brazil
| | - Rodrigo A. A. Munoz
- Institute of Chemistry Federal University of Uberlandia Av. João Naves de Ávila 2121 – Uberlandia, Minas Gerais Brazil
| | - Craig E. Banks
- Faculty of Science and Engineering Manchester Metropolitan University Chester Street Manchester M1 5GD UK
| | - Eduardo M. Richter
- Institute of Chemistry Federal University of Uberlandia Av. João Naves de Ávila 2121 – Uberlandia, Minas Gerais Brazil
- Faculty of Science and Engineering Manchester Metropolitan University Chester Street Manchester M1 5GD UK
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Witczak A, Pohoryło A, Abdel-Gawad H, Cybulski J. Residues of some organophosphorus pesticides on and in fruits and vegetables available in Poland, an assessment based on the European union regulations and health assessment for human populations. PHOSPHORUS SULFUR 2018. [DOI: 10.1080/10426507.2018.1492921] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Agata Witczak
- Department of Toxicology, West Pomeranian University of Technology, Szczecin, Poland
| | - Anna Pohoryło
- Department of Toxicology, West Pomeranian University of Technology, Szczecin, Poland
| | - Hassan Abdel-Gawad
- Applied Organic Chemistry Department, Chemical Industries Research Division, National Research Centre, Dokki, Cairo, Egypt
| | - Jacek Cybulski
- Department of Toxicology, West Pomeranian University of Technology, Szczecin, Poland
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Umemura K, Sato S. Scanning Techniques for Nanobioconjugates of Carbon Nanotubes. SCANNING 2018; 2018:6254692. [PMID: 30008981 PMCID: PMC6020491 DOI: 10.1155/2018/6254692] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 04/29/2018] [Indexed: 05/17/2023]
Abstract
Nanobioconjugates using carbon nanotubes (CNTs) are attractive and promising hybrid materials. Various biological applications using the CNT nanobioconjugates, for example, drug delivery systems and nanobiosensors, have been proposed by many authors. Scanning techniques such as scanning electron microscopy (SEM) and scanning probe microscopy (SPM) have advantages to characterize the CNT nanobioconjugates under various conditions, for example, isolated conjugates, conjugates in thin films, and conjugates in living cells. In this review article, almost 300 papers are categorized based on types of CNT applications, and various scanning data are introduced to illuminate merits of scanning techniques.
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Affiliation(s)
- Kazuo Umemura
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 1628601, Japan
| | - Shizuma Sato
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 1628601, Japan
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Jiang B, Dong P, Zheng J. A novel amperometric biosensor based on covalently attached multilayer assemblies of gold nanoparticles, diazo-resins and acetylcholinesterase for the detection of organophosphorus pesticides. Talanta 2018; 183:114-121. [DOI: 10.1016/j.talanta.2018.02.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 01/30/2018] [Accepted: 02/06/2018] [Indexed: 01/21/2023]
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7
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Kim M, Kwon JE, Lee K, Koh WG. Signal-amplifying nanoparticle/hydrogel hybrid microarray biosensor for metal-enhanced fluorescence detection of organophosphorus compounds. Biofabrication 2018; 10:035002. [DOI: 10.1088/1758-5090/aab004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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Wang Y, Zeinhom MMA, Yang M, Sun R, Wang S, Smith JN, Timchalk C, Li L, Lin Y, Du D. A 3D-Printed, Portable, Optical-Sensing Platform for Smartphones Capable of Detecting the Herbicide 2,4-Dichlorophenoxyacetic Acid. Anal Chem 2017; 89:9339-9346. [DOI: 10.1021/acs.analchem.7b02139] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yijia Wang
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
- College
of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Mohamed M. A. Zeinhom
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
- Food
Hygiene Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62512, Egypt
| | - Mingming Yang
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Rongrong Sun
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Shengfu Wang
- College
of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Jordan N. Smith
- Health Impacts & Exposure Science, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Charles Timchalk
- Health Impacts & Exposure Science, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Lei Li
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Yuehe Lin
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Dan Du
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
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9
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Kaur N, Prabhakar N. Current scenario in organophosphates detection using electrochemical biosensors. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.04.012] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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10
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Zhang W, Guo Z, Chen Y, Cao Y. Nanomaterial Based Biosensors for Detection of Biomarkers of Exposure to OP Pesticides and Nerve Agents: A Review. ELECTROANAL 2017. [DOI: 10.1002/elan.201600748] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Weiying Zhang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Institute for Interdisciplinary Research; Jianghan University; Wuhan 430056 PR China
| | - Zhenzhong Guo
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical college; Wuhan University of Science and Technology; Wuhan 430065 P.R.China
| | - Yong Chen
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Institute for Interdisciplinary Research; Jianghan University; Wuhan 430056 PR China
- Ecole Normale Supérieure, CNRS-ENS-UPMC UMR 8640; 24 Rue Lhomond Paris 75005 France
| | - Yiping Cao
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Institute for Interdisciplinary Research; Jianghan University; Wuhan 430056 PR China
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11
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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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12
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Mehta J, Bhardwaj N, Bhardwaj SK, Kim KH, Deep A. Recent advances in enzyme immobilization techniques: Metal-organic frameworks as novel substrates. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.05.007] [Citation(s) in RCA: 296] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Graphene modified screen printed immunosensor for highly sensitive detection of parathion. Biosens Bioelectron 2016; 83:339-46. [DOI: 10.1016/j.bios.2016.04.058] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 04/18/2016] [Accepted: 04/19/2016] [Indexed: 11/20/2022]
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14
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Yasmin J, Ahmed MR, Cho BK. Biosensors and their Applications in Food Safety: A Review. ACTA ACUST UNITED AC 2016. [DOI: 10.5307/jbe.2016.41.3.240] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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A selective and sensitive sensor based on highly dispersed cobalt porphyrin-Co3O4-graphene oxide nanocomposites for the detection of methyl parathion. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-3079-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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16
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Long Y, Wang Y, Du X, Cheng L, Wu P, Jiang Y. The Different Sensitive Behaviors of a Hydrogen-Bond Acidic Polymer-Coated SAW Sensor for Chemical Warfare Agents and Their Simulants. SENSORS 2015. [PMID: 26225975 PMCID: PMC4570322 DOI: 10.3390/s150818302] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A linear hydrogen-bond acidic (HBA) linear functionalized polymer (PLF), was deposited onto a bare surface acoustic wave (SAW) device to fabricate a chemical sensor. Real-time responses of the sensor to a series of compounds including sarin (GB), dimethyl methylphosphonate (DMMP), mustard gas (HD), chloroethyl ethyl sulphide (2-CEES), 1,5-dichloropentane (DCP) and some organic solvents were studied. The results show that the sensor is highly sensitive to GB and DMMP, and has low sensitivity to HD and DCP, as expected. However, the sensor possesses an unexpected high sensitivity toward 2-CEES. This good sensing performance can’t be solely or mainly attributed to the dipole-dipole interaction since the sensor is not sensitive to some high polarity solvents. We believe the lone pair electrons around the sulphur atom of 2-CEES provide an electron-rich site, which facilitates the formation of hydrogen bonding between PLF and 2-CEES. On the contrary, the electron cloud on the sulphur atom of the HD molecule is offset or depleted by its two neighbouring strong electron-withdrawing groups, hence, hydrogen bonding can hardly be formed.
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Affiliation(s)
- Yin Long
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
| | - Yang Wang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
| | - Xiaosong Du
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
| | - Luhua Cheng
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
| | - Penglin Wu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
| | - Yadong Jiang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
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17
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Amine A, Arduini F, Moscone D, Palleschi G. Recent advances in biosensors based on enzyme inhibition. Biosens Bioelectron 2015; 76:180-94. [PMID: 26227311 DOI: 10.1016/j.bios.2015.07.010] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 06/28/2015] [Accepted: 07/05/2015] [Indexed: 02/07/2023]
Abstract
Enzyme inhibitors like drugs and pollutants are closely correlated to human and environmental health, thus their monitoring is of paramount importance in analytical chemistry. Enzymatic biosensors represent cost-effective, miniaturized and easy to use devices; particularly biosensors based on enzyme inhibition are useful analytical tools for fast screening and monitoring of inhibitors. The present review will highlight the research carried out in the last 9 years (2006-2014) on biosensors based on enzyme inhibition. We underpin the recent advances focused on the investigation in new theoretical approachs and in the evaluation of biosensor performances for reversible and irreversible inhibitors. The use of nanomaterials and microfluidic systems as well as the applications of the various biosensors in real samples is critically reviewed, demonstrating that such biosensors allow the development of useful devices for a fast and reliable alarm system.
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Affiliation(s)
- A Amine
- Faculty of Sciences and Techniques, University Hassan II of Casablanca, Morocco.
| | - F Arduini
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy; Consorzio Interuniversitario Biostrutture e Biosistemi "INBB", Viale Medaglie d'Oro 305, 00136 Rome, Italy
| | - D Moscone
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy; Consorzio Interuniversitario Biostrutture e Biosistemi "INBB", Viale Medaglie d'Oro 305, 00136 Rome, Italy
| | - G Palleschi
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy; Consorzio Interuniversitario Biostrutture e Biosistemi "INBB", Viale Medaglie d'Oro 305, 00136 Rome, Italy
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18
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Li S, Xing M, Wang H, Zhang L, Zhong Y, Chen L. Determination of tryptophan and tyrosine by chemiluminescence based on a luminol–N-bromosuccinimide–ZnS quantum dots system. RSC Adv 2015. [DOI: 10.1039/c5ra07233f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
ZnS QDs as a catalyst can catalyze luminol–NBS system CL, based on Trp and Tyr can inhibit this system CL intensity, we were designed a rapid and sensitive sensor for determination of Trp and Tyr.
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Affiliation(s)
- Shifeng Li
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000
| | - Min Xing
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000
| | - Haiyan Wang
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000
| | - Li Zhang
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000
| | - Yiman Zhong
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000
| | - Lei Chen
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000
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19
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Zhang W, Asiri AM, Liu D, Du D, Lin Y. Nanomaterial-based biosensors for environmental and biological monitoring of organophosphorus pesticides and nerve agents. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2013.10.007] [Citation(s) in RCA: 209] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Anandhakumar S, Dhanalakshmi K, Mathiyarasu J. Non-enzymatic organophosphorus pesticide detection using gold atomic cluster modified electrode. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2013.10.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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21
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Si Y, Zhang N, Sun Z, Li S, Zhao L, Li R, Wang H. A phosphorylation-sensitive tyrosine-tailored magnetic particle for electrochemically probing free organophosphates in blood. Analyst 2014; 139:5466-71. [DOI: 10.1039/c4an01074d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phosphorylation-sensitive tyrosine was coated onto Fe3O4 particles, resulting in a “lab-on-a-particle”-based electrochemical detection protocol for probing free organophosphates in blood.
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Affiliation(s)
- Yanmei Si
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City, P. R. China
| | - Ning Zhang
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City, P. R. China
| | - Zongzhao Sun
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City, P. R. China
| | - Shuai Li
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City, P. R. China
| | - Liyang Zhao
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City, P. R. China
| | - Rui Li
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City, P. R. China
| | - Hua Wang
- Shandong Province Key Laboratory of Life-Organic Analysis
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu City, P. R. China
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22
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Wu B, Hou L, Du M, Zhang T, Wang Z, Xue Z, Lu X. A molecularly imprinted electrochemical enzymeless sensor based on functionalized gold nanoparticle decorated carbon nanotubes for methyl-parathion detection. RSC Adv 2014. [DOI: 10.1039/c4ra06210h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic of MP MIP sensor and the possible mechanism.
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Affiliation(s)
- Bowan Wu
- LONGDONG UNIVERSITY-FLUOBON Surfactant Engineering Technology Center
- College of Chemistry & Chemical Engineering
- Cooperative Innovation Center of Industrial Surfactant
- Longdong University
- Qingyang, China
| | - Lijie Hou
- LONGDONG UNIVERSITY-FLUOBON Surfactant Engineering Technology Center
- College of Chemistry & Chemical Engineering
- Cooperative Innovation Center of Industrial Surfactant
- Longdong University
- Qingyang, China
| | - Miao Du
- LONGDONG UNIVERSITY-FLUOBON Surfactant Engineering Technology Center
- College of Chemistry & Chemical Engineering
- Cooperative Innovation Center of Industrial Surfactant
- Longdong University
- Qingyang, China
| | - Tiantian Zhang
- LONGDONG UNIVERSITY-FLUOBON Surfactant Engineering Technology Center
- College of Chemistry & Chemical Engineering
- Cooperative Innovation Center of Industrial Surfactant
- Longdong University
- Qingyang, China
| | - Zhihua Wang
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province
- College of Chemistry & Chemical Engineering
- Northwest Normal University
- Lanzhou, China
| | - Zhonghua Xue
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province
- College of Chemistry & Chemical Engineering
- Northwest Normal University
- Lanzhou, China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province
- College of Chemistry & Chemical Engineering
- Northwest Normal University
- Lanzhou, China
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23
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Construction of graphene oxide magnetic nanocomposites-based on-chip enzymatic microreactor for ultrasensitive pesticide detection. J Chromatogr A 2013; 1315:28-35. [DOI: 10.1016/j.chroma.2013.09.046] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 09/12/2013] [Accepted: 09/12/2013] [Indexed: 11/22/2022]
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24
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Ge X, Tao Y, Zhang A, Lin Y, Du D. Electrochemical detection of dual exposure biomarkers of organophosphorus agents based on reactivation of inhibited cholinesterase. Anal Chem 2013; 85:9686-91. [PMID: 24020883 DOI: 10.1021/ac402022p] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Considering inter- or intra-individual variation in the normal levels of acetylcholinesterase (AChE), real-time measurement of AChE via the reactivation from a postexposure sample was used, and thus a baseline-free and reliable approach was proposed for detecting/screening low-dose organophosphorus pesticides (OPs) poisons. The principle of this technology is on the basis of parallel measurements of AChE activity before and after reactivation from a postexposure to simultaneously provide the content of dual biomarkers of both enzyme inhibition and enzyme adducts. It is more accurate and reliable compared with only one biomarker (inhibition or adduct). Reactivation from a postexposure sample is a better individual enzyme baseline compared to pre-exposure from the population average level in currently available approaches. AChE activity was measured with an electrochemical method. Greatly enhanced sensitivity was achieved by using Fe3O4/Au nanocomposites to enrich thiocholine, the hydrolysis product of active AChE, followed by electrochemical oxidative desorption of the adsorbed thiocholine. The validation of this method for measurement of OP exposures was further explored with in vitro paraoxon inhibited human red blood cells (RBCs) samples and demonstrated its practicability.
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Affiliation(s)
- Xiaoxiao Ge
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University , Wuhan, Hubei 430079, People's Republic of China
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Zhang W, Tang Y, Du D, Smith J, Timchalk C, Liu D, Lin Y. Direct analysis of trichloropyridinol in human saliva using an Au nanoparticles-based immunochromatographic test strip for biomonitoring of exposure to chlorpyrifos. Talanta 2013; 114:261-7. [DOI: 10.1016/j.talanta.2013.06.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 05/31/2013] [Accepted: 06/10/2013] [Indexed: 11/25/2022]
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26
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Zhang X, Wang H, Yang C, Du D, Lin Y. Preparation, characterization of Fe3O4 at TiO2 magnetic nanoparticles and their application for immunoassay of biomarker of exposure to organophosphorus pesticides. Biosens Bioelectron 2013; 41:669-74. [DOI: 10.1016/j.bios.2012.09.047] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 09/20/2012] [Accepted: 09/22/2012] [Indexed: 10/27/2022]
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27
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Black RM, Read RW. Biological markers of exposure to organophosphorus nerve agents. Arch Toxicol 2013; 87:421-37. [DOI: 10.1007/s00204-012-1005-1] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 12/18/2012] [Indexed: 11/28/2022]
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28
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Arduini F, Amine A. Biosensors based on enzyme inhibition. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2013; 140:299-326. [PMID: 23934362 DOI: 10.1007/10_2013_224] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The present chapter describes the use of biosensors based on enzyme inhibition as analytical tools. The parameters that affect biosensor sensitivity, such as the amount of immobilized enzyme, incubation time, and immobilization type, were critically evaluated, highlighting how the knowledge of enzymatic kinetics can help researchers optimize the biosensor in an easy and fast manner. The applications of these biosensors demonstrating their wide application have been reported. The objective of this survey is to give a critical description of biosensors based on enzyme inhibition, of their assembly, and their application in the environmental, food, and pharmaceutical fields.
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Affiliation(s)
- Fabiana Arduini
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy,
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30
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Pike DJ, Kapur N, Millner PA, Stewart DI. Flow cell design for effective biosensing. SENSORS (BASEL, SWITZERLAND) 2012; 13:58-70. [PMID: 23344373 PMCID: PMC3574664 DOI: 10.3390/s130100058] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 12/11/2012] [Accepted: 12/12/2012] [Indexed: 11/16/2022]
Abstract
The efficiency of three different biosensor flow cells is reported. All three flow cells featured a central channel that expands in the vicinity of the sensing element to provide the same diameter active region, but the rate of channel expansion and contraction varied between the designs. For each cell the rate at which the analyte concentration in the sensor chamber responds to a change in the influent analyte concentration was determined numerically using a finite element model and experimentally using a flow-fluorescence technique. Reduced flow cell efficiency with increasing flow rates was observed for all three designs and was related to the increased importance of diffusion relative to advection, with efficiency being limited by the development of regions of recirculating flow (eddies). However, the onset of eddy development occurred at higher flow rates for the design with the most gradual channel expansion, producing a considerably more efficient flow cell across the range of flow rates considered in this study. It is recommended that biosensor flow cells be designed to minimize the tendency towards, and be operated under conditions that prevent the development of flow recirculation.
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Affiliation(s)
- Douglas J. Pike
- Pathogen Control Engineering (PaCE) Institute, School of Civil Engineering, University of Leeds, Leeds, West Yorkshire, LS2 9JT, UK; E-Mail:
| | - Nikil Kapur
- Institute of Engineering Thermofluids, Surfaces & Interfaces (iETSI), School of Mechanical Engineering, University of Leeds, Leeds, West Yorkshire, LS2 9JT, UK; E-Mail:
| | - Paul A. Millner
- Institute of Membrane and Systems Biology, Faculty of Biological Sciences, University of Leeds, Leeds, West Yorkshire, LS2 9JT, UK; E-Mail:
| | - Douglas I. Stewart
- Pathogen Control Engineering (PaCE) Institute, School of Civil Engineering, University of Leeds, Leeds, West Yorkshire, LS2 9JT, UK; E-Mail:
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31
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Enantioselective inhibition of immobilized acetylcholinesterase in biosensor determination of pesticides. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0101-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractChiral effects for the inhibition of acetylcholinesterase by organophosphorus pesticides were investigated for insecticide malathion and malaoxon, which is a metabolic product of malathion in living organisms. Studies were carried out using a bienzymatic biosensor with immobilized acetylcholinesterase, choline oxidase, and with Prussian Blue used as a mediator. In both cases the R enantiomers accelerate acetylocholinesterase inhibition. The chiral effect in inhibition was much more pronounced in fast flow measurements than in batch measurements.
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32
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Tan SN, Ge L, Tan HY, Loke WK, Gao J, Wang W. Paper-Based Enzyme Immobilization for Flow Injection Electrochemical Biosensor Integrated with Reagent-Loaded Cartridge toward Portable Modular Device. Anal Chem 2012; 84:10071-6. [DOI: 10.1021/ac302537r] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Swee Ngin Tan
- Natural Sciences and Science
Education Academic Group, Nanyang Technological University, 1 Nanyang Walk, 637616, Singapore
| | - Liya Ge
- Natural Sciences and Science
Education Academic Group, Nanyang Technological University, 1 Nanyang Walk, 637616, Singapore
| | - Hsih Yin Tan
- DSO National Laboratories, 20 Science
Park Drive, 118230, Singapore
| | - Weng Keong Loke
- DSO National Laboratories, 20 Science
Park Drive, 118230, Singapore
| | - Jinrong Gao
- School of Chemical and Biological Engineering, Yancheng Institute of Technology, 9 Yingbin Road, Yancheng, 224051,
China
| | - Wei Wang
- School of Chemical and Biological Engineering, Yancheng Institute of Technology, 9 Yingbin Road, Yancheng, 224051,
China
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33
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Liu S, Zheng Z, Li X. Advances in pesticide biosensors: current status, challenges, and future perspectives. Anal Bioanal Chem 2012; 405:63-90. [DOI: 10.1007/s00216-012-6299-6] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 07/12/2012] [Accepted: 07/24/2012] [Indexed: 01/17/2023]
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34
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Smith JN, Wang J, Lin Y, Klohe EM, Timchalk C. Pharmacokinetics and Pharmacodynamics of Chlorpyrifos and 3,5,6-Trichloro-2-pyridinol in Rat Saliva After Chlorpyrifos Administration. Toxicol Sci 2012; 130:245-56. [DOI: 10.1093/toxsci/kfs251] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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35
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Anu Prathap MU, Chaurasia AK, Sawant SN, Apte SK. Polyaniline-Based Highly Sensitive Microbial Biosensor for Selective Detection of Lindane. Anal Chem 2012; 84:6672-8. [DOI: 10.1021/ac301077d] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- M. U. Anu Prathap
- Chemistry
Division, and ‡Molecular Biology Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - Akhilesh Kumar Chaurasia
- Chemistry
Division, and ‡Molecular Biology Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - Shilpa N. Sawant
- Chemistry
Division, and ‡Molecular Biology Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - S. K. Apte
- Chemistry
Division, and ‡Molecular Biology Division, Bhabha Atomic Research Centre, Mumbai-400085, India
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36
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Schopfer LM, Lockridge O. Analytical approaches for monitoring exposure to organophosphorus and carbamate agents through analysis of protein adducts. Drug Test Anal 2012; 4:246-61. [DOI: 10.1002/dta.1325] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2011] [Revised: 09/29/2011] [Accepted: 10/02/2011] [Indexed: 12/16/2022]
Affiliation(s)
| | - Oksana Lockridge
- Eppley Institute; University of Nebraska Medical Center; Omaha; NE
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37
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Chen A, Du D, Lin Y. Highly sensitive and selective immuno-capture/electrochemical assay of acetylcholinesterase activity in red blood cells: a biomarker of exposure to organophosphorus pesticides and nerve agents. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:1828-1833. [PMID: 22208309 DOI: 10.1021/es202689u] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Acetylcholinesterase (AChE) enzyme activity in red blood cells (RBCs) is a useful biomarker for biomonitoring of exposures to organophosphorus (OP) pesticides and chemical nerve agents. In this paper, we reported a new method for AChE activity assay based on selective immuno-capture of AChE from biological samples followed by enzyme activity assay of captured AChE using a disposable electrochemical sensor. The electrochemical sensor is based on multiwalled carbon nanotubes-gold (MWCNTs-Au) nanocomposites modified screen printed carbon electrode (SPCE), which is used for the immobilization of AChE specific antibody. Upon the completion of immunoreaction, the target AChE (including active and inhibited) is captured onto the electrode surface and followed by an electrochemical detection of enzymatic activity in the presence of acetylthiocholine. A linear response is obtained over standard AChE concentration range from 0.1 to 10 nM. To demonstrate the capability of this new biomonitoring method, AChE solutions dosed with different concentrations of paraoxon were used to validate the new AChE assay method. AChE inhibition in OP dosed solutions was proportional to OP concentration from 0.2 to 50 nM. The new AChE activity assay method for biomonitoring of OP exposure was further validated with in vitro paraoxon-dosed RBC samples. The established electrochemical sensing platform for AChE activity assay not only avoids the problem of overlapping substrate specificity with esterases by using selective antibody, but also eliminates potential interference from other electroactive species in biological samples. It offers a new approach for sensitive, selective, and rapid AChE activity assay for biomonitoring of exposure to OPs.
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Affiliation(s)
- Aiqiong Chen
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China
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38
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Rapid and sensitive detection of methyl-parathion pesticide with an electropolymerized, molecularly imprinted polymer capacitive sensor. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.12.035] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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39
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Du D, Wang J, Wang L, Lu D, Lin Y. Integrated Lateral Flow Test Strip with Electrochemical Sensor for Quantification of Phosphorylated Cholinesterase: Biomarker of Exposure to Organophosphorus Agents. Anal Chem 2012; 84:1380-5. [DOI: 10.1021/ac202391w] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dan Du
- Key Laboratory of Pesticide
and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China
- Pacific Northwest National Laboratory, Richland, Washington 99352, United
States
| | - Jun Wang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United
States
| | - Limin Wang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United
States
| | - Donglai Lu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United
States
| | - Yuehe Lin
- Pacific Northwest National Laboratory, Richland, Washington 99352, United
States
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40
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Yang Y, Tu H, Zhang A, Du D, Lin Y. Preparation and characterization of Au–ZrO2–SiO2 nanocomposite spheres and their application in enrichment and detection of organophosphorus agents. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15129d] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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ZHOU H, GAN N, HOU J, LI T, CAO Y. Enhanced Electrochemiluminescence Employed for the Selective Detection of Methyl Parathion Based on a Zirconia Nanoparticle Film Modified Electrode. ANAL SCI 2012; 28:267-73. [DOI: 10.2116/analsci.28.267] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Hankun ZHOU
- The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Material Science and Chemical Engineering of Ningbo University
| | - Ning GAN
- The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Material Science and Chemical Engineering of Ningbo University
| | - Jianguo HOU
- The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Material Science and Chemical Engineering of Ningbo University
| | - Tianhua LI
- The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Material Science and Chemical Engineering of Ningbo University
| | - Yuting CAO
- The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Material Science and Chemical Engineering of Ningbo University
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42
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Wu S, Lan X, Zhao W, Li Y, Zhang L, Wang H, Han M, Tao S. Controlled immobilization of acetylcholinesterase on improved hydrophobic gold nanoparticle/Prussian blue modified surface for ultra-trace organophosphate pesticide detection. Biosens Bioelectron 2011; 27:82-7. [DOI: 10.1016/j.bios.2011.06.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2011] [Revised: 06/15/2011] [Accepted: 06/16/2011] [Indexed: 10/18/2022]
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43
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Bajgar J, Hajek P, Kassa J, Slizova D, Krs O, Karasova JZ, Fusek J, Capek L, Voicu VA. Combined approach to demonstrate acetylcholinesterase activity changes in the rat brain following tabun intoxication and its treatment. Toxicol Mech Methods 2011; 22:60-6. [DOI: 10.3109/15376516.2011.596231] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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44
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Wu S, Lan X, Cui L, Zhang L, Tao S, Wang H, Han M, Liu Z, Meng C. Application of graphene for preconcentration and highly sensitive stripping voltammetric analysis of organophosphate pesticide. Anal Chim Acta 2011; 699:170-6. [DOI: 10.1016/j.aca.2011.05.032] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 05/15/2011] [Accepted: 05/17/2011] [Indexed: 10/18/2022]
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45
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Du D, Wang J, Wang L, Lu D, Smith JN, Timchalk C, Lin Y. Magnetic Electrochemical Sensing Platform for Biomonitoring of Exposure to Organophosphorus Pesticides and Nerve Agents Based on Simultaneous Measurement of Total Enzyme Amount and Enzyme Activity. Anal Chem 2011; 83:3770-7. [DOI: 10.1021/ac200217d] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dan Du
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Jun Wang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Limin Wang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Donglai Lu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Jordan N. Smith
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Charles Timchalk
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Yuehe Lin
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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46
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Wang K, Wang L, Jiang W, Hu J. A sensitive enzymatic method for paraoxon detection based on enzyme inhibition and fluorescence quenching. Talanta 2011; 84:400-5. [DOI: 10.1016/j.talanta.2011.01.056] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2010] [Revised: 01/06/2011] [Accepted: 01/16/2011] [Indexed: 10/18/2022]
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47
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Cui Z, Han C, Li H. Dual-signal fenamithion probe by combining fluorescence with colorimetry based on Rhodamine B modified silver nanoparticles. Analyst 2011; 136:1351-6. [PMID: 21305084 DOI: 10.1039/c0an00617c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A versatile yet simple strategy for the fabrication of a highly selective and sensitive fenamithion probe based on Rhodamine B (RB) modified silver nanoparticles (RB-Ag NPs) was developed. The advantage of our system over classical assays is that it combined fluorescence with colorimetry which can realize the prompt on-site and real-time detection of fenamithion with high sensitivity (0.1 nM) in aqueous solution. Moreover, the detection system presents excellent anti-disturbance ability when exposed to a series of interfering ionic/pesticides mixtures and can be applied to the determination of fenamithion in real vegetables and different water samples with the limit of detection (LOD) as low as 10 nM (0.0026 mg L(-1)), which is in accord with the maximum contamination level of 0.001∼0.25 mg L(-1) for organophosphorus pesticides as defined by the U.S. Environmental Protection Agency (EPA). Advantage is taken of the fact that RB would be displaced from the surface of the Ag NPs because of the stronger coordination ability of Ag NPs with fenamithion, an amino-containing organophosphorus pesticide, accompanying the clustered Ag NPs (9 nm) dissipating into smaller individual particles (7 nm). Based on this phenomenon, a novel analyte-induced etching mechanism was proposed.
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Affiliation(s)
- Zhimin Cui
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China
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48
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Lu D, Shao G, Du D, Wang J, Wang L, Wang W, Lin Y. Enzyme entrapped nanoporous scaffolds formed through flow-induced gelation in a microfluidic filter device for sensitive biosensing of organophosphorus compounds. LAB ON A CHIP 2011; 11:381-384. [PMID: 21152493 DOI: 10.1039/c0lc00337a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A novel and versatile processing method was developed for the formation of gel scaffolds with in situ AChE-AuNPs immobilization for biosensing of organophosphorus compounds. The biosensor designed by our new approach shows high sensitivity, selectivity and reactivation efficiency. This flow-induced immobilization technique opens up new pathways for designing a simple, fast, biocompatible, and cost-effective process for enhanced sensor performance and on-site monitoring of a variety of toxic organophosphorus compounds.
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Affiliation(s)
- Donglai Lu
- Pacific Northwest National Laboratory, Richland, WA 99352, USA
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49
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Ebrahimi B, Shojaosadati SA, Daneshgar P, Norouzi P, Mousavi SM. Performance evaluation of fast Fourier-transform continuous cyclic-voltammetry pesticide biosensor. Anal Chim Acta 2011; 687:168-76. [DOI: 10.1016/j.aca.2010.12.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 11/30/2010] [Accepted: 12/04/2010] [Indexed: 11/24/2022]
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50
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Nourmohammadian F, Wu T, Branda NR. A ‘chemically-gated’ photoresponsive compound as a visible detector for organophosphorus nerve agents. Chem Commun (Camb) 2011; 47:10954-6. [DOI: 10.1039/c1cc13685b] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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