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Paneru S, Kumar D. A Novel Electrochemical Biosensor Based on Polyaniline-Embedded Copper Oxide Nanoparticles for High-Sensitive Paraoxon-Ethyl (PE) Detection. Appl Biochem Biotechnol 2023:10.1007/s12010-023-04350-y. [PMID: 36701097 DOI: 10.1007/s12010-023-04350-y] [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] [Accepted: 01/10/2023] [Indexed: 01/27/2023]
Abstract
This paper proposes a fabrication of a hyper-sensitive amperometric biosensor for paraoxon-ethyl (PE) detection. In this developed biosensor, polyaniline (PANI) and copper oxide (CuO)-based nanocomposite is used as a sensing platform. The homogeneous distribution of CuO onto the PANI matrix enhances the surface area and conductivity of the nanocomposite. Additionally, the PANI produces a compatible environment for enzyme immobilization, which further enhances the rate of electron transfer. For biosensor fabrication, the nanocomposite is deposited electrophoretically onto the ITO glass substrate and immobilization of acetylcholinesterase (AChE) enzyme is conducted onto the fabricated electrode surface. The results validate good reproducibility, good stability, and high selectivity of the fabricated biosensor (AChE/PANI@CuO/ITO). The inhibition rate of paraoxon-ethyl (PE) is recorded in the concentration range of 1-200 nM with a low limit of detection of 0.096 nM or 96 pM. The sensitivity of the developed biosensor is found to be 49.86 µA(nM)-1. The developed biosensor is further successfully accomplished for the detection of PE in real samples like rice and pulse.
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Affiliation(s)
- Saroj Paneru
- Department of Applied Chemistry, Delhi Technological University, Delhi, 110042, India
| | - Devendra Kumar
- Department of Applied Chemistry, Delhi Technological University, Delhi, 110042, India.
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Wang X, Lu D, Liu Y, Wang W, Ren R, Li M, Liu D, Liu Y, Liu Y, Pang G. Electrochemical Signal Amplification Strategies and Their Use in Olfactory and Taste Evaluation. BIOSENSORS 2022; 12:bios12080566. [PMID: 35892464 PMCID: PMC9394270 DOI: 10.3390/bios12080566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 07/20/2022] [Accepted: 07/24/2022] [Indexed: 05/07/2023]
Abstract
Biosensors are powerful analytical tools used to identify and detect target molecules. Electrochemical biosensors, which combine biosensing with electrochemical analysis techniques, are efficient analytical instruments that translate concentration signals into electrical signals, enabling the quantitative and qualitative analysis of target molecules. Electrochemical biosensors have been widely used in various fields of detection and analysis due to their high sensitivity, superior selectivity, quick reaction time, and inexpensive cost. However, the signal changes caused by interactions between a biological probe and a target molecule are very weak and difficult to capture directly by using detection instruments. Therefore, various signal amplification strategies have been proposed and developed to increase the accuracy and sensitivity of detection systems. This review serves as a reference for biosensor and detector research, as it introduces the research progress of electrochemical signal amplification strategies in olfactory and taste evaluation. It also discusses the latest signal amplification strategies currently being employed in electrochemical biosensors for nanomaterial development, enzyme labeling, and nucleic acid amplification techniques, and highlights the most recent work in using cell tissues as biosensitive elements.
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Affiliation(s)
- Xinqian Wang
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Dingqiang Lu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
- Correspondence: (D.L.); (G.P.)
| | - Yuan Liu
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (Y.L.); (W.W.)
| | - Wenli Wang
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (Y.L.); (W.W.)
| | - Ruijuan Ren
- Tianjin Institute for Food Safety Inspection Technology, Tianjin 300308, China;
| | - Ming Li
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Danyang Liu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Yujiao Liu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Yixuan Liu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Guangchang Pang
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
- Correspondence: (D.L.); (G.P.)
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Casanova A, Iniesta J, Gomis-Berenguer A. Recent progress in the development of porous carbon-based electrodes for sensing applications. Analyst 2022; 147:767-783. [PMID: 35107446 DOI: 10.1039/d1an01978c] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Electrochemical (bio)sensors are considered clean and powerful analytical tools capable of converting an electrochemical reaction between analytes and electrodes into a quantitative signal. They are an important part of our daily lives integrated in various fields such as healthcare, food and environmental monitoring. Several strategies including the incorporation of porous carbon materials in its configuration have been applied to improve their sensitivity and selectivity in the last decade. The porosity, surface area, graphitic structure as well as chemical composition of materials greatly influence the electrochemical performance of the sensors. In this review, activated carbons, ordered mesoporous carbons, graphene-based materials, and MOF-derived carbons, which are used to date as crucial elements of electrochemical devices, are described, starting from their textural and chemical compositions to their role in the outcome of electrochemical sensors. Several relevant and meaningful examples about material synthesis, sensor fabrication and applications are illustrated and described. The closer perspectives of these fascinating materials forecast a promising future for the electrochemical sensing field.
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Affiliation(s)
- Ana Casanova
- Department of Chemistry, School of Engineering Science in Chemistry, Biochemistry and Health, Royal Institute of Technology, KTH, SE-100 44 Stockholm, Sweden
| | - Jesus Iniesta
- Department of Physical Chemistry, University of Alicante, 03080 Alicante, Spain
- Institute of Electrochemistry, University of Alicante, 03080 Alicante, Spain.
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Recent advances of enzyme biosensors for pesticide detection in foods. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-01032-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Yu H, Wang M, Cao J, She Y, Zhu Y, Ye J, Wang J, Lao S, Abd El-Aty AM. Determination of Dichlorvos in Pears by Surface-Enhanced Raman Scattering (SERS) with Catalysis by Platinum Coated Gold Nanoparticles. ANAL LETT 2021. [DOI: 10.1080/00032719.2021.1938104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- He Yu
- Institute of Quality Standard & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, Beijing, China
| | - Miao Wang
- Institute of Quality Standard & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, Beijing, China
| | - Jing Cao
- Institute of Quality Standard & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, Beijing, China
| | - Yongxin She
- Institute of Quality Standard & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, Beijing, China
| | - Yongan Zhu
- Institute of Quality Standard & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, Beijing, China
| | - Jiaming Ye
- Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China
| | - Jing Wang
- Institute of Quality Standard & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, Beijing, China
- Agro-products Quality Safety and Testing Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Shuibing Lao
- Agro-products Quality Safety and Testing Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - A. M. Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, Turkey
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Chatterjee B, Kalyani N, Anand A, Khan E, Das S, Bansal V, Kumar A, Sharma TK. GOLD SELEX: a novel SELEX approach for the development of high-affinity aptamers against small molecules without residual activity. Mikrochim Acta 2020; 187:618. [PMID: 33074441 DOI: 10.1007/s00604-020-04577-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 09/29/2020] [Indexed: 12/17/2022]
Abstract
GOLD SELEX, a novel SELEX approach has been developed that obviates the need for target immobilization for aptamer development. The approach purely relies on the affinity of the aptamers towards its target, to get detached from the gold nanoparticle (GNP) surface (weak attraction) after binding with its target. Thus, only the completely detached aptamers are selected for the next round of SELEX. This, in-process, also addresses the issue of residual binding and thus improves the sensitivity of the developed aptamers. As a proof of concept for establishing the utility of the approach for small molecules, we have developed aptamers against dichlorvos (DV), a pesticide in just 8 rounds. Using these aptamer candidates, we have developed an aptamer-NanoZyme (GNP having peroxidase mimic activity) based colorimetric assay. The developed aptamer displayed high affinity (Kd in sub micromolar range) and selectivity for DV. The developed assay could detect as low as 15 μM DV. The best-performing aptamer was also able to work in real samples like river water and commercial apple juice. The GOLD SELEX approach developed in this study, we believe, can act as a template for future SELEX strategy development and can replace the conventional SELEX strategy.
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Affiliation(s)
- Bandhan Chatterjee
- Aptamer Technology and Diagnostics Laboratory, Multidisciplinary Clinical and Translational Research Group, Translational Health Science and Technology Institute (THSTI), Faridabad, Haryana, 121001, India
| | - Neeti Kalyani
- Aptamer Technology and Diagnostics Laboratory, Multidisciplinary Clinical and Translational Research Group, Translational Health Science and Technology Institute (THSTI), Faridabad, Haryana, 121001, India
| | - Anjali Anand
- Aptamer Technology and Diagnostics Laboratory, Multidisciplinary Clinical and Translational Research Group, Translational Health Science and Technology Institute (THSTI), Faridabad, Haryana, 121001, India
| | - Eshan Khan
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Soonjyoti Das
- Aptamer Technology and Diagnostics Laboratory, Multidisciplinary Clinical and Translational Research Group, Translational Health Science and Technology Institute (THSTI), Faridabad, Haryana, 121001, India
| | - Vipul Bansal
- Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Lab (NBRL), School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria, 3001, Australia
| | - Amit Kumar
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Tarun Kumar Sharma
- Aptamer Technology and Diagnostics Laboratory, Multidisciplinary Clinical and Translational Research Group, Translational Health Science and Technology Institute (THSTI), Faridabad, Haryana, 121001, India.
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Cao J, Wang M, Yu H, She Y, Cao Z, Ye J, Abd El-Aty AM, Hacımüftüoğlu A, Wang J, Lao S. An Overview on the Mechanisms and Applications of Enzyme Inhibition-Based Methods for Determination of Organophosphate and Carbamate Pesticides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7298-7315. [PMID: 32551623 DOI: 10.1021/acs.jafc.0c01962] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Acetylcholinesterase inactivating compounds, such as organophosphate (OP) and carbamate (CM) pesticides, are widely used in agriculture to ensure sustainable production of food and feed. As a consequence of their applications, they would result in neurotoxicity, even death. In this essence, the development of enzyme inhibition methods still shows great significance as rapid detection techniques for on-site large-scale screening of OPs and CMs. Initially, mechanisms and applications of various enzyme-inhibition-based methods and devices, including optical colorimetric assay, fluorometric assays, electrochemical biosensors, rapid test card, and microfluidic device, are highlighted in the present overview. Further, to enhance the enzyme sensitivity for detection; alternative enzyme sources or high yield enrichment methods (such as abzyme, artificial enzyme, and recombinant enzyme), as well as enzyme reactivation and identification, are also addressed in this comprehensive overview.
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Affiliation(s)
- Jing Cao
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100081, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, 100193, Beijing, China
| | - Miao Wang
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100081, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, 100193, Beijing, China
| | - He Yu
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100081, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, 100193, Beijing, China
| | - Yongxin She
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100081, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, 100193, Beijing, China
| | - Zhen Cao
- Institute of Quality Standardization & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, 100081, Beijing, China
- Key Laboratory of Agrofood Safety and Quality (Beijing), Ministry of Agriculture, 100193, Beijing, China
| | - Jiaming Ye
- Yangtze Delta Region Institute of Tsinghua University, 314006, Jiaxing, China
| | - A M Abd El-Aty
- State Key Laboratory of Biobased Material and Green Papermaking, College of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Science, Jinan 250353, China
- 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, 100081, 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
| | - Shuibing Lao
- Agro-products Quality Safety and Testing Technology Research Institute, Guangxi Academy of Agricultural Sciences, 53003, Nanning, China
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Hu H, Wang B, Li Y, Wang P, Yang L. Acetylcholinesterase Sensor with Patterned Structure for Detecting Organophosphorus Pesticides Based on Titanium Dioxide Sol‐gel Carrier. ELECTROANAL 2020. [DOI: 10.1002/elan.202060027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Huaying Hu
- Key Laboratory of Advanced Display and System Applications, Ministry of EducationShanghai University Yanchang Road 149 Shanghai 200072 China
| | - Bo Wang
- Key Laboratory of Advanced Display and System Applications, Ministry of EducationShanghai University Yanchang Road 149 Shanghai 200072 China
| | - Yiru Li
- Key Laboratory of Advanced Display and System Applications, Ministry of EducationShanghai University Yanchang Road 149 Shanghai 200072 China
| | - Pengchang Wang
- Key Laboratory of Advanced Display and System Applications, Ministry of EducationShanghai University Yanchang Road 149 Shanghai 200072 China
| | - Lianqiao Yang
- Key Laboratory of Advanced Display and System Applications, Ministry of EducationShanghai University Yanchang Road 149 Shanghai 200072 China
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9
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Wang D, Wang P, Liu D, Zhou Z. Fluorometric atrazine assay based on the use of nitrogen-doped graphene quantum dots and on inhibition of the activity of tyrosinase. Mikrochim Acta 2019; 186:527. [DOI: 10.1007/s00604-019-3648-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 06/27/2019] [Indexed: 10/26/2022]
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10
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zahirifar F, Rahimnejad M, Abdulkareem RA, Najafpour G. Determination of Diazinon in fruit samples using electrochemical sensor based on carbon nanotubes modified carbon paste electrode. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101245] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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11
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A glassy carbon electrode modified with a monolayer of zirconium(IV) phosphonate for sensing of methyl-parathion by square wave voltammetry. Mikrochim Acta 2019; 186:433. [PMID: 31197482 DOI: 10.1007/s00604-019-3493-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 05/12/2019] [Indexed: 01/28/2023]
Abstract
A glassy carbon electrode (GCE) was consecutively modified with amino groups and phosphate groups, and then loaded with Zr(IV) ions. Fourier transform infrared spectrophotometry, field-emission scanning electron microscopy, energy dispersive X-ray spectroscopy and cyclic voltammetry were used to characterize the morphologies and electrochemical properties. The sensor was used to detect p-nitrophenyl-substituted organophosphorus pesticides, with methyl-parathion (MP) as the model analyte. Under optimized conditions, the oxidation current of square wave voltammetry (typically measured at around -0.28 V vs. saturated calomel electrode) increases linearly in the 1.0 to 100 ng mL-1 MP concentration range, and the detection limit is 0.25 ng mL-1 (at a signal to noise ratio of 3). Average recoveries from (spiked) real water samples are 99.9-102.2%, with relative standard deviations of 0.3-2.6% (n = 3) at three levels. The reliability and accuracy of the method was validated by HPLC. Graphical abstract Zr(IV) modified GCE is prepared via three steps. The electrode shows high specificity and selectivity towards methyl-parathion. And the linear range is 1.0 - 100.0 ng mL-1 with the detection limit as low as 0.25 ng mL-1 with SWV.
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Huang X, Cui B, Ma Y, Yan X, Xia L, Zhou N, Wang M, He L, Zhang Z. Three-dimensional nitrogen-doped mesoporous carbon nanomaterials derived from plant biomass: Cost-effective construction of label-free electrochemical aptasensor for sensitively detecting alpha-fetoprotein. Anal Chim Acta 2019; 1078:125-134. [PMID: 31358210 DOI: 10.1016/j.aca.2019.06.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 04/28/2019] [Accepted: 06/03/2019] [Indexed: 11/26/2022]
Abstract
We synthesized three kinds of nitrogen-doped nanoporous carbon nanomaterials (represented by N-mC) through a cost-effective method, that is, pyrolysis of plant biomasses (grass, flower, and peanut shells). We further explored their potential as sensitive bioplatforms for electrochemical label-free aptasensors to facilitate the early detection of alpha-fetoprotein (AFP). Chemical structure characterizations revealed that rich functional groups coexisted in as-synthesized N-mC nanomaterials, such as C-C, C-O, C=O, C-N, and COOH. Among the three kinds of N-mC nanomaterials, the one derived from grass (N-mCg) exhibited the lowest carbon defect degree, the highest ID/IG ratio in the Raman spectra, and the largest specific surface area (186.2 m2 g-1). Consequently, N-mCg displayed excellent electrochemical activity and strong affinity toward aptamer strands, further endowing the corresponding aptasensor with sensitive detection ability for AFP. Electrochemical impedance spectroscopy (EIS) and differential pulse voltammetry (DPV) were used to investigate the whole detection procedure for AFP. The EIS and DPV results showed that the fabricated N-mCg-based aptasensor possessed an extremely low limit of detection of 60.8 and 61.8 fg·mL-1 (s/n = 3), respectively, for detecting AFP within a wide linear range from 0.1 pg mL-1 to 100 ng mL-1. Moreover, the aptasensor displayed acceptable selectivity and applicability, high reproducibility, and excellent stability in serum samples of cancer patients. Therefore, the proposed cost-effective and label-free strategy based on the nitrogen-doped nanoporous carbon derived from plant biomass is a promising approach for the early detection of various tumor markers.
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Affiliation(s)
- Xiaoyu Huang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052, PR China
| | - Bingbing Cui
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 136, Science Avenue, Zhengzhou, 450001, PR China
| | - Yashen Ma
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 136, Science Avenue, Zhengzhou, 450001, PR China
| | - Xu Yan
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052, PR China
| | - Lei Xia
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052, PR China
| | - Nan Zhou
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052, PR China.
| | - Minghua Wang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 136, Science Avenue, Zhengzhou, 450001, PR China
| | - Linghao He
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 136, Science Avenue, Zhengzhou, 450001, PR China
| | - Zhihong Zhang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 136, Science Avenue, Zhengzhou, 450001, PR China.
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Zhang P, Sun T, Rong S, Zeng D, Yu H, Zhang Z, Chang D, Pan H. A sensitive amperometric AChE-biosensor for organophosphate pesticides detection based on conjugated polymer and Ag-rGO-NH2 nanocomposite. Bioelectrochemistry 2019; 127:163-170. [DOI: 10.1016/j.bioelechem.2019.02.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 02/04/2019] [Accepted: 02/04/2019] [Indexed: 01/28/2023]
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Zou B, Chu Y, Xia J. Monocrotophos detection with a bienzyme biosensor based on ionic-liquid-modified carbon nanotubes. Anal Bioanal Chem 2019; 411:2905-2914. [PMID: 31011780 DOI: 10.1007/s00216-019-01743-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 02/01/2019] [Accepted: 02/28/2019] [Indexed: 11/29/2022]
Abstract
Acetylcholinesterase (AChE) biosensor technology is widely applied in the detection of organophosphate pesticides in agricultural production via the inhibition of AChE activity by organophosphates. However, the AChE electrode has some drawbacks, such as low stability and high overpotential. Combining the advantages of multiwalled carbon nanotubes (MWCNTs) and ionic liquids, we constructed a novel bienzyme electrode [Cl/iron porphyrin (FePP)-modified MWCNTs/AChE/glassy carbon electrode], which included AChE and mimetic oxidase FePP. In this electrode, FePP is covalently bound to the AChE carrier via ionic liquid for increased electrode sensitivity and stability. Under optimal conditions, this novel biosensor has a monocrotophos detection limit of 3.2 × 10-11 mol/L and good recovery of 89-104%. After 5 weeks of storage at 4 °C, the oxidation current was 97.8% of its original value. The biosensor has high stability and sensitivity for monocrotophos detection and is a promising device for monitoring food safety. Graphical abstract The complete synthesis process of Cl/FePP-MWCNTs/AChE/GCE.
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Affiliation(s)
- Bin Zou
- Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China.
| | - Yanhong Chu
- Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China
| | - Jiaojiao Xia
- Jiangsu University, No.301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China.
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Visual detection of mixed organophosphorous pesticide using QD-AChE aerogel based microfluidic arrays sensor. Biosens Bioelectron 2019; 136:112-117. [PMID: 31054518 DOI: 10.1016/j.bios.2019.04.036] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/26/2019] [Accepted: 04/18/2019] [Indexed: 02/08/2023]
Abstract
In this paper, we present a simple strategy to fabricate a sensitive fluorescence microfluidic sensor based on quantum dots (QDs) aerogel and acetylcholinesterase enzyme (AChE) for organophosphate pesticides (OPs) detection The detection is based on the change of fluorescence intensity of QDs aerogel, which will be partly quenched as a consequence of the hydrolytic reaction of acetylthiocholine (ATCh) catalyzed by the AChE, and then the fluorescence of QDs aerogel is recovered due to decreasing of the enzymatic activity in the presence of OPs. The QDs-AChE aerogel based microfluidic arrays sensor provided good sensitivity for rapid detection of OPs with a detection limit of 0.38 pM, while the detection range is from 10-5 to 10-12 M. Due to the result of random orientations of AChE in the 3D porous aerogel nano-structure, the sensor presents similar calibration curves to difference pesticides, which promises the ability of the sensor to monitor total OPs of mixture. This determination sensor shows a low detection limit, wide linear range, and highly accurate determination of total OPs and carbamate content. Finally, we show the proposed sensor can be used to monitor of simple OPs and mixture in spiked fruit samples. This novel QDs-AChE aerogel sensor has an extremely high sensitivity and large detection range, it is a promising tool for accurate, rapid and cost-effective detection of various OP residues on agricultural products.
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Mutharani B, Ranganathan P, Chen SM, Karuppiah C. Enzyme-free electrochemical detection of nanomolar levels of the organophosphorus pesticide paraoxon-ethyl by using a poly(N-isopropyl acrylamide)-chitosan microgel decorated with palladium nanoparticles. Mikrochim Acta 2019; 186:167. [PMID: 30739232 DOI: 10.1007/s00604-018-3206-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/23/2018] [Indexed: 11/25/2022]
Abstract
A rapid voltammetric method is described for the determination of the organophosphorus pesticide paraoxon-ethyl (PEL). A glassy carbon electrode (GCE) was modified with a composite consisting of a poly(N-isopropylacrylamide)-chitosan microgel with incorporated palladium nanoparticles. The microgel was characterized by FE-SEM, EDX, XPS, FTIR, XRD, and EIS. The modified GCE is shown to enable direct electro-reductive determination of PEL by using differential pulse voltammetry. The method works in pH 7 solution and in the 0.01 μM to 1.3 mM PEL concentration range. At a typical working potential of -0.66 V (vs. Ag/AgCl) (at 50 mV/s), the detection limit is as low as 0.7 nM, and the electrochemical sensitivity is 1.60 μA μM-1 cm-2. Intriguingly, the modified GCE displays good recovery when applied to bok choy and water samples. Graphical abstract Schematic of an electrochemical method for determination of paraoxon ethyl (PEL) in bok choy extract and water by using poly(N-isopropyl acrylamide)-chitosan microgel decorated with palladium nanoparticle-modified glassy carbon electrodes (PdNPs/PNIPAM-CT microgel/GCE).
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Affiliation(s)
- Bhuvanenthiran Mutharani
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, Republic of China
| | - Palraj Ranganathan
- Institute of Organic and Polymeric Materials, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, Republic of China
- Institute of Organic and Polymeric Materials, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, Republic of China
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, Republic of China.
| | - Chelladurai Karuppiah
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, 243, Taiwan, Republic of China
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Aptasensors for pesticide detection. Biosens Bioelectron 2019; 130:174-184. [PMID: 30738246 DOI: 10.1016/j.bios.2019.01.006] [Citation(s) in RCA: 162] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/05/2019] [Accepted: 01/12/2019] [Indexed: 12/16/2022]
Abstract
Pesticide contamination has become one of the most serious problems of public health in the world, due to their wide application in agriculture industry to guarantee the crop yield and quality. The detection of pesticide residues plays an important role in food safety management and environment protection. However, the conventional detection methodologies cannot realize highly sensitive, selective and on-site detection, which limits their applications. Aptamers are short single-stranded oligonucleotides (RNA or DNA) selected by SELEX method, which can selectively bind to their targets with high affinity. Compared with the commonly used antibodies or enzymes in designing biosensors, aptamers exhibit better stability, low molecular weight, easy modification and low cost, and were regarded as excellent candidates for developing aptasensors for pesticide detection. In this review, application of aptamers for pesticide detection was reviewed. Firstly, aptamers specifically bind to various pesticides were first summarized. Secondly, the progresses and highlights of developing aptasensors for highly-sensitive and selective detection of pesticide residues were systematically provided. Finally, the present challenges and future perspectives for developing novel highly-effective aptasensor for the detection of pesticide residues were discussed.
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An electrochemical biosensor for sensitive detection of nicotine-induced dopamine secreted by PC12 cells. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.10.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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