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Wu Y, Fan Q, Chen Y, Sun X, Shi G. Production and Selection of Antibody–Antigen Pairs for the Development of Immunoenzyme Assay and Lateral Flow Immunoassay Methods for Carbofuran and Its Analogues. BIOSENSORS 2022; 12:bios12080560. [PMID: 35892457 PMCID: PMC9332470 DOI: 10.3390/bios12080560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 11/16/2022]
Abstract
To produce a sensitive monoclonal antibody (mAb) for the simultaneous detection of carbofuran, benfuracarb, carbosulfan and 3-hydroxy-carbofuran, 2,3-dihydro-2,2-dimethyl-7-benzofuranmethanamine (DDB) was conjugated to bovine serum albumin (BSA) to prepare the immunogen DDB-BSA and mice were immunized. Coating antigens were prepared by conjugating DDB and 5-methoxy-2,3-dihydrobenzofuran-3-acetic acid (MDA) to BSA and ovalbumin (OVA), respectively. Furthermore, the effect of different antibody–antigen pairs on the sensitivity of ELISA and LFIA methods for the detection of carbofuran was investigated. After the immunization, a high-affinity mAb 13C8 was obtained. The ability of the coating antigen to compete with carbofuran for binding antibodies was found to be significantly different between ELISA and LFIA methods. With the antibody–antigen pair 13C8-MDA-OVA, the IC50 values of the ELISA and QD-LFIA methods for carbofuran were 0.18 ng/mL and 0.67 ng/mL, respectively. The cross-reactivity (CR) values of the two methods for benfuracarb, carbosulfan and 3-hydroxy-carbofuran ranged from 72.0% to 83.7%, while, for other carbamate pesticides, the CR values were less than 1%. The spiked recoveries of carbofuran in vegetables by the QD-LFIA method were 83–111%, with a coefficient of variation below 10%, and the test results of the actual samples were consistent with the HPLC-MS method. Overall, this study provides key materials for the development of immunoassays for carbofuran and its analogues, and the antibody–antigen pair selection strategy established in this study provides useful insights for the development of sensitive immunoassays for other compounds.
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Affiliation(s)
- Yuxiang Wu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China;
- Shandong Lvdu Biotechnology Co., Ltd., Binzhou 256600, China
| | - Qi Fan
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China; (Q.F.); (Y.C.)
| | - Yinuo Chen
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China; (Q.F.); (Y.C.)
| | - Xia Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China;
- Correspondence: (X.S.); (G.S.)
| | - Guoqing Shi
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China; (Q.F.); (Y.C.)
- Correspondence: (X.S.); (G.S.)
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2
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Lin Z, Liu X, Li Y, Li C, Yang L, Ma K, Zhang Z, Huang H. Electrochemical aptasensor based on Mo 2C/Mo 2N and gold nanoparticles for determination of chlorpyrifos. Mikrochim Acta 2021; 188:170. [PMID: 33891178 DOI: 10.1007/s00604-021-04830-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/12/2021] [Indexed: 11/29/2022]
Abstract
Two-dimensional Mo2C/Mo2N composites were synthesized by high temperature ball milling and used as support materials for fabricating a chlorpyrifos (CPF) aptasensor. Gold nanoparticles (Au NPs) were electrodeposited on the surface of a Mo2C/Mo2N-modified electrode to connect with the ferrocene (Fc) probe via Au-S bonds. The Fc probe can hybridize with the aptamer probe to form a double-stranded structure. The addition of CPF made the double strands melt and the Fc probe approached the surface of the electrode, thereby resulting in amplification of the electrochemical response. The current response of the aptasensor for detecting CPF in solutions linearly varied from 0 to 400 ng mL-1 (with a maximum at 0.98 V vs. Ag/AgCl). The Au NPs/Mo2C/Mo2N composites exhibited satisfactory electrochemical behavior due to their excellent electrical conductivity and large surface area. This ultrasensitive aptasensor showed a low limit of detection of 0.036 ng mL-1. It was applied to determine CPF in real samples with acceptable recoveries from 94.7 to 116.7%, and the relative standard deviation was from 2.57 to 7.08%.Graphical abstract Schematic diagram of the manufacturing process of the aptasensor. Electrochemical aptasensor based on Mo2C/Mo2N/Au NP composites show excellent performance in detecting CPF.
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Affiliation(s)
- Zhenfeng Lin
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Science, Northwest University, Xi'an, 710127, China
| | - Xin Liu
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Science, Northwest University, Xi'an, 710127, China
| | - Yangzi Li
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Science, Northwest University, Xi'an, 710127, China
| | - Changxiang Li
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Science, Northwest University, Xi'an, 710127, China
| | - Liu Yang
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Science, Northwest University, Xi'an, 710127, China
| | - Keke Ma
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Science, Northwest University, Xi'an, 710127, China
| | - Zhenwei Zhang
- Linyi Institute of Industrial Technology, Linyi, 276000, China
| | - Huayu Huang
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Science, Northwest University, Xi'an, 710127, China.
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Singh N, Bhuker A, Jeevanadam J. Effects of metal nanoparticle-mediated treatment on seed quality parameters of different crops. Naunyn Schmiedebergs Arch Pharmacol 2021; 394:1067-1089. [PMID: 33660031 DOI: 10.1007/s00210-021-02057-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 01/20/2021] [Indexed: 12/26/2022]
Abstract
The increasing population of the world requires novel techniques to feed everyone, which can replace or work along with traditional methods to increase production of agricultural crops. In recent times, nanotechnology is considered as a promising and emerging approach to be incorporated in agriculture to improve productivity of different crops by the administration of nanoparticles through seed treatment, foliar spray on plants, nano-fertilizers for balanced crop nutrition, nano-herbicides for effective weed control, nanoinsecticides for plant protection, early detection of plant diseases and nutrient deficiencies using diagnostics kits, and nano-pheromones for effective monitoring of pests. Further, distinct nanoparticles with unique physicochemical and biological properties are used in agriculture to increase the percentage of seed germination, which is the initial step to increase the crop yield. In the context of agricultural crops, nanoparticles have both positive effects on seed quality parameters, such as germination percentage, seedling length, seedling dry weight and vigor indices, as well as negative impacts of causing toxicity toward the environment. Thus, the aim of this review article is to provide a comprehensive overview on the effects of super-dispersive metal powders, such as zinc, silver, and titanium nanoparticles on the seed quality parameters of different crops. In addition, the drawback of conventional seed growth enhancers, impact of metal nanoparticles toward seeds, and mechanism of nanoparticles to increase seed germination were also discussed.
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Affiliation(s)
- Nirmal Singh
- Department of Seed Science and Technology, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, 125004, India
| | - Axay Bhuker
- Department of Seed Science and Technology, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, 125004, India.
| | - Jaison Jeevanadam
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal
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4
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Sun W, Liu L, Memon AG, Zhou X, Zhao H. Waveguide-Based Fluorescent Immunosensor for the Simultaneous Detection of Carbofuran and 3-Hydroxy-Carbofuran. BIOSENSORS 2020; 10:bios10120191. [PMID: 33260832 PMCID: PMC7761426 DOI: 10.3390/bios10120191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/14/2020] [Accepted: 11/21/2020] [Indexed: 06/12/2023]
Abstract
Carbofuran (CBF) is an efficient and broad-spectrum insecticide. As testing indicators for water quality and agricultural products, CBF and its metabolite 3-hydroxy-carbofuran (3-OH-CBF) are regulated by many countries. The detection of CBF and 3-OH-CBF is of great importance for the environment and human health. However, an immunosensor detection method for the simultaneous analysis of CBF and 3-OH-CBF remains unavailable. Herein, we report a waveguide-based fluorescent immunosensor for detecting CBF and 3-OH-CBF, synchronously. The immunosensor is based on a broad-spectrum monoclonal antibody with high binding affinity against CBF and 3-OH-CBF. The linear detection ranges for CBF and 3-OH-CBF are 0.29-2.69 and 0.12-4.59 μg/L, with limits of detection of 0.13 μg/L for CBF and 0.06 μg/L for 3-OH-CBF, respectively. The whole detection process for each cycle is approximately 30 min. The results show a good application prospect for the rapid detection of CBF and 3-OH-CBF in water or agricultural products.
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Affiliation(s)
- Weiming Sun
- Key Laboratory of A & F Environmental Processes and Ecological Regulation of Hainan Province, College of Ecology and Environment, Hainan University, Haikou 570228, China;
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
- State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing 100084, China; (L.L.); (A.G.M.)
| | - Lanhua Liu
- State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing 100084, China; (L.L.); (A.G.M.)
| | - Abdul Ghaffar Memon
- State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing 100084, China; (L.L.); (A.G.M.)
- Department of Environmental Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan
| | - Xiaohong Zhou
- State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing 100084, China; (L.L.); (A.G.M.)
| | - Hongwei Zhao
- Key Laboratory of A & F Environmental Processes and Ecological Regulation of Hainan Province, College of Ecology and Environment, Hainan University, Haikou 570228, China;
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
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5
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Kumar V, Vaid K, Bansal SA, Kim KH. Nanomaterial-based immunosensors for ultrasensitive detection of pesticides/herbicides: Current status and perspectives. Biosens Bioelectron 2020; 165:112382. [PMID: 32729507 DOI: 10.1016/j.bios.2020.112382] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/27/2020] [Accepted: 06/08/2020] [Indexed: 01/22/2023]
Abstract
The increasing level of pesticides and herbicides in food and water sources is a growing threat to human health and the environment. The development of portable, sensitive, specific, simple, and cost-effective sensors is hence in high demand to avoid exposure or consumption of these chemicals through efficient monitoring of their levels in food as well as water samples. The use of nanomaterials (NMs) for the construction of an immunosensing system was demonstrated to be an efficient and effective option to realize selective sensing against pesticides/herbicides. The potential of such applications has hence been demonstrated for a variety of NMs including graphene, carbon nanotubes (CNTs), metal nanoparticles, and nano-polymers either in pristine or composite forms based on diverse sensing principles (e.g., electrochemical, optical, and quartz crystal microbalance (QCM)). This article evaluates the development, applicability, and performances of NM-based immunosensors for the measurement of pesticides and herbicides in water, food, and soil samples. The performance of all the surveyed sensors has been evaluated on the basis of key parameters, e.g., detection limit (DL), sensing range, and response time.
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Affiliation(s)
- Vanish Kumar
- National Agri-Food Biotechnology Institute (NABI), S.A.S. Nagar, Punjab, 140306, India.
| | - Kalyan Vaid
- National Agri-Food Biotechnology Institute (NABI), S.A.S. Nagar, Punjab, 140306, India; Centre for Nanoscience and Nanotechnology, Panjab University, Chandigarh, 160014, India
| | | | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul, 04763, South Korea.
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Lan J, Wang M, Ding S, Fan Y, Diao X, Li QX, Zhao H. Simultaneous detection of carbofuran and 3-hydroxy-carbofuran in vegetables and fruits by broad-specific monoclonal antibody-based ELISA. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1664997] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Jianqiang Lan
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests of Ministry of Education, Hainan University, Haikou, People’s Republic of China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, People’s Republic of China
| | - Mifang Wang
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, People’s Republic of China
| | - Shang Ding
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, People’s Republic of China
| | - Yongmei Fan
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests of Ministry of Education, Hainan University, Haikou, People’s Republic of China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, People’s Republic of China
| | - Xiaoping Diao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
| | - Qing X. Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, USA
| | - Hongwei Zhao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, People’s Republic of China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests of Ministry of Education, Hainan University, Haikou, People’s Republic of China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, People’s Republic of China
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7
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Selective amperometric flow-injection analysis of carbofuran using a molecularly-imprinted polymer and gold-coated-magnetite modified carbon nanotube-paste electrode. Talanta 2018; 179:700-709. [DOI: 10.1016/j.talanta.2017.11.064] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/21/2017] [Accepted: 11/28/2017] [Indexed: 01/28/2023]
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8
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Zhou Q, Liu C, Zhang H, Zhao C, Wang Y. Development and Applications of Quantum Dot-based Molecularly Imprinted Polymer Composites for Optosensing of Carbofuran in Water. ANAL SCI 2018; 33:957-962. [PMID: 28794334 DOI: 10.2116/analsci.33.957] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this paper, quantum dot (QD)-based molecularly imprinted polymer (MIP) was fabricated and successfully utilized as a fluorescent probe for highly selective and sensitive detection of carbofuran in water samples. The MIPs were synthesized followed by a multi-step swelling and polymerization method, and then labeled with CdSe/ZnS QDs via gradual solvent evaporation. Then the prepared QDs-MIP microspheres were introduced to flow cytometry by virtue of their good dispersibility in water, and fast adsorption and desorption. Under optimized conditions, the fluorescence intensity of QDs-MIP decreased linearly with the increasing of carbofuran in the concentration range of 1 - 20 μg L-1 (R2 > 0.99) and it can detect down to 0.2 μg L-1 of carbofuran. This method was simple, selective and applied successfully to the optosensing of trace carbofuran in water samples with good recoveries ranging from 94.1 ± 3.7 to 98.4 ± 4.5%.
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Affiliation(s)
- Qiang Zhou
- Institute of Applied Ecology, Chinese Academy of Sciences.,Ministry of Agriculture Laboratory of Risk Assessment of Environment Factors for Quality and Safety of Agro-Products
| | | | - Hong Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences.,Ministry of Agriculture Laboratory of Risk Assessment of Environment Factors for Quality and Safety of Agro-Products
| | - Chunjie Zhao
- School of Pharmacy, Shenyang Pharmaceutical University
| | - Yanhong Wang
- Institute of Applied Ecology, Chinese Academy of Sciences.,Ministry of Agriculture Laboratory of Risk Assessment of Environment Factors for Quality and Safety of Agro-Products
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9
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Highly sensitive microcantilever-based immunosensor for the detection of carbofuran in soil and vegetable samples. Food Chem 2017; 229:432-438. [DOI: 10.1016/j.foodchem.2017.02.093] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 12/08/2016] [Accepted: 02/17/2017] [Indexed: 11/22/2022]
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10
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Farka Z, Juřík T, Kovář D, Trnková L, Skládal P. Nanoparticle-Based Immunochemical Biosensors and Assays: Recent Advances and Challenges. Chem Rev 2017; 117:9973-10042. [DOI: 10.1021/acs.chemrev.7b00037] [Citation(s) in RCA: 414] [Impact Index Per Article: 59.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zdeněk Farka
- Central
European Institute of Technology (CEITEC), ‡Department of Biochemistry, Faculty
of Science, and §Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Tomáš Juřík
- Central
European Institute of Technology (CEITEC), ‡Department of Biochemistry, Faculty
of Science, and §Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - David Kovář
- Central
European Institute of Technology (CEITEC), ‡Department of Biochemistry, Faculty
of Science, and §Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Libuše Trnková
- Central
European Institute of Technology (CEITEC), ‡Department of Biochemistry, Faculty
of Science, and §Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Petr Skládal
- Central
European Institute of Technology (CEITEC), ‡Department of Biochemistry, Faculty
of Science, and §Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
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11
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12
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Liu N, Nie D, Tan Y, Zhao Z, Liao Y, Wang H, Sun C, Wu A. An ultrasensitive amperometric immunosensor for zearalenones based on oriented antibody immobilization on a glassy carbon electrode modified with MWCNTs and AuPt nanoparticles. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1996-z] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Li S, Wu X, Liu C, Yin G, Luo J, Xu Z. Application of DNA aptamers as sensing layers for detection of carbofuran by electrogenerated chemiluminescence energy transfer. Anal Chim Acta 2016; 941:94-100. [PMID: 27692383 DOI: 10.1016/j.aca.2016.08.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 08/20/2016] [Accepted: 08/24/2016] [Indexed: 11/19/2022]
Abstract
In this study, an electrogenerated chemiluminescence (ECL) sensing platform for carbofuran detection was constructed based on ECL energy transfer (ECRET) and carbon dot (C-dot)-tagged aptamers as the recognition element. Fullerene (C60)-loaded gold nanoparticles (C60-Au) were used as the energy donor, modified on a glassy carbon electrode. C-dot-tagged DNA aptamers were used as the receptor, and ECRET then occurred between C60-Au and C-dots. After accepting the energy, the C-dots acted as a signal indicator and showed decreased signal intensity in the presence of targets, which competitively bound to DNA aptamers and blocked energy transfer. Using this robust, straight-forward strategy, the sensor showed a linear ECL response to carbofuran at concentrations from 2.0 × 10-11 mol L-1 to 8.0 × 10-9 mol L-1. The detection limit of this assay was shown to be 8.8 × 10-13 mol L-1. Thus, the sensing approach described in this study could be adapted for use in the detection of various pesticide residue targets.
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Affiliation(s)
- Shuhuai Li
- Analysis and Test Center of Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Laboratory of Quality & Safety Risk Assessment for Tropical Products (Haikou) Ministry of Agriculture, Haikou, 571101, China.
| | - Xuejin Wu
- Analysis and Test Center of Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Laboratory of Quality & Safety Risk Assessment for Tropical Products (Haikou) Ministry of Agriculture, Haikou, 571101, China
| | - Chunhua Liu
- Analysis and Test Center of Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Laboratory of Quality & Safety Risk Assessment for Tropical Products (Haikou) Ministry of Agriculture, Haikou, 571101, China
| | - Guihao Yin
- Analysis and Test Center of Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Laboratory of Quality & Safety Risk Assessment for Tropical Products (Haikou) Ministry of Agriculture, Haikou, 571101, China
| | - Jinhui Luo
- Analysis and Test Center of Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Laboratory of Quality & Safety Risk Assessment for Tropical Products (Haikou) Ministry of Agriculture, Haikou, 571101, China
| | - Zhi Xu
- Analysis and Test Center of Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Laboratory of Quality & Safety Risk Assessment for Tropical Products (Haikou) Ministry of Agriculture, Haikou, 571101, China.
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14
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Arduini F, Cinti S, Scognamiglio V, Moscone D. Nanomaterials in electrochemical biosensors for pesticide detection: advances and challenges in food analysis. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1858-8] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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15
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Construction of an impedimetric immunosensor for label-free detecting carbofuran residual in agricultural and environmental samples. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.01.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Gao YS, Zhu XF, Yang TT, Xu JK, Lu LM, Zhang KX. Sensitive electrochemical determination of α-fetoprotein using a glassy carbon electrode modified with in-situ grown gold nanoparticles, graphene oxide and MWCNTs acting as signal amplifiers. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1537-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Liu Y, Wei M. Development of acetylcholinesterase biosensor based on platinum–carbon aerogels composite for determination of organophosphorus pesticides. Food Control 2014. [DOI: 10.1016/j.foodcont.2013.08.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Amperometric immunosensor for carbofuran detection based on MWCNTs/GS-PEI-Au and AuNPs-antibody conjugate. SENSORS 2013; 13:5286-301. [PMID: 23604029 PMCID: PMC3673137 DOI: 10.3390/s130405286] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 04/11/2013] [Accepted: 04/12/2013] [Indexed: 12/05/2022]
Abstract
In this paper, an amperometric immunosensor for the detection of carbofuran was developed. Firstly, multiwall carbon nanotubes (MWCNTs) and graphene sheets-ethyleneimine polymer-Au (GS-PEI-Au) nanocomposites were modified onto the surface of a glass carbon electrode (GCE) via self-assembly. The nanocomposites can increase the surface area of the GCE to capture a large amount of antibody, as well as produce a synergistic effect in the electrochemical performance. Then the modified electrode was coated with gold nanoparticles-antibody conjugate (AuNPs-Ab) and blocked with BSA. The monoclonal antibody against carbofuran was covalently immobilized on the AuNPs with glutathione as a spacer arm. The morphologies of the GS-PEI-Au nanocomposites and the fabrication process of the immunosensor were characterized by X-ray diffraction (XRD), ultraviolet and visible absorption spectroscopy (UV-vis) and scanning electron microscopy (SEM), respectively. Under optimal conditions, the immunosensor showed a wide linear range, from 0.5 to 500 ng/mL, with a detection limit of 0.03 ng/mL (S/N = 3). The as-constructed immunosensor exhibited notable performance features such as high specificity, good reproducibility, acceptable stability and regeneration performance. The results are mainly due to the excellent properties of MWCNTs, GS-PEI-Au nanocomposites and the covalent immobilization of Ab with free hapten binding sites for further immunoreaction. It provides a new avenue for amperometric immunosensor fabrication.
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19
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An amperometric immunosensor based on multi-walled carbon nanotubes-thionine-chitosan nanocomposite film for chlorpyrifos detection. SENSORS 2012; 12:17247-61. [PMID: 23443396 PMCID: PMC3571836 DOI: 10.3390/s121217247] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 12/10/2012] [Accepted: 12/11/2012] [Indexed: 11/16/2022]
Abstract
In this work, a novel amperometric immunosensor based on multi-walled carbon nanotubes-thionine-chitosan (MWCNTs-THI-CHIT) nanocomposite film as electrode modified material was developed for the detection of chlorpyrifos residues. The nanocomposite film was dropped onto a glassy carbon electrode (GCE), and then the anti-chlorpyrifos monoclonal antibody was covalently immobilized onto the surface of MWCNTs-THI-CHIT/GCE using the crosslinking agent glutaraldehyde (GA). The modification procedure was characterized by using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Under the optimized conditions, a linear relationship between the relative change in peak current of different pulse voltammetry (DPV) and the logarithm of chlorpyrifos solution concentration was obtained in the range from 0.1 to 1.0 × 105 ng/mL with a detection limit of 0.046 ng/mL. The proposed chlorpyrifos immunosensor exhibited high reproducibility, stability, and good selectivity and regeneration, making it a potential alternative tool for ultrasensitive detection of chlorpyrifos residues in vegetables and fruits.
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Pei X, Zhang B, Tang J, Liu B, Lai W, Tang D. Sandwich-type immunosensors and immunoassays exploiting nanostructure labels: A review. Anal Chim Acta 2012; 758:1-18. [PMID: 23245891 DOI: 10.1016/j.aca.2012.10.060] [Citation(s) in RCA: 295] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 10/25/2012] [Accepted: 10/30/2012] [Indexed: 12/17/2022]
Abstract
Methods based on sandwich-type immunosensors and immunoassays have been developed for detection of multivalent antigens/analytes with more than one eptiope due to the use of two matched antibodies. High-affinity antibodies and appropriate labels are usually employed for the amplification of detectable signal. Recent research has looked to develop innovative and powerful novel nanoparticle labels, controlling and tailoring their properties in a very predictable manner to meet the requirements of specific applications. This articles reviews recent advances, exploiting nanoparticle labels, in the sandwich-type immunosensors and immunoassays. Routine approaches involve noble metal nanoparticles, carbon nanomaterials, semiconductor nanoparticles, metal oxide nanostructures, and hybrid nanostructures. The enormous signal enhancement associated with the use of nanoparticle labels and with the formation of nanoparticle-antibody-antigen assemblies provides the basis for sensitive detection of disease-related proteins or biomolecules. Techniques commonly rely on the use of biofunctionalized nanoparticles, inorganic-biological hybrid nanoparticles, and signal tag-doped nanoparticles. Rather than being exhaustive, this review focuses on selected examples to illustrate novel concepts and promising applications. Approaches described include the biofunctionalized nanoparticles, inorganic-biological hybrid nanoparticles, and signal tage-doped nanoparticles. Further, promising application in electrochemical, mass-sensitive, optical and multianalyte detection are discussed in detail.
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Affiliation(s)
- Xiaomei Pei
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
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