1
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Qin N, Liu J, Li F, Liu J. Recent Advances in Aptasensors for Rapid Pesticide Residues Detection. Crit Rev Anal Chem 2023:1-22. [PMID: 37708008 DOI: 10.1080/10408347.2023.2257795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Pesticides are applied widely to increase agricultural output and quality, however, this practice results in residual issues that not only harm the environment but also put people and animals' lives and health at risk. As a result, it is critical to find pesticide residues in a variety of sources, including crops, water supplies, and soil. Aptamers are more flexible in their synthesis and modification, have a high level of specificity, are inexpensive, and have good stability compared to conventional detection methods. They have therefore attracted a lot of interest in the industry. This study reviews the most recent aptasensor advancements in the detection of pesticide residues. Firstly, aptamers specifically binding to many pesticides are summarized. Secondly, the combination of aptasensors with colorimetric, fluorescent, surface enhanced Raman spectroscopy (SERS), resonance Light Scattering (RLS), chemiluminescence (CL), electrochemical, and electrochemiluminescence (ECL) technologies are systematically introduced, and their advantages and disadvantages are expounded. Importantly, the aptasensors for the detection of various pesticides (organochlorine, organophosphorus, neonicotinoids, carbamates, and pyrethroids) that have been developed so far are systematically analyzed and discussed. Finally, the furture prospects and challenges of the aptasensors are highlighted. It is expected to offer suggestions for the later creation of novel, highly effective and sensitive aptasensors for the detection of pesticide residues.
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Affiliation(s)
- Na Qin
- College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin, China
| | - Jinfeng Liu
- College of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Fengyun Li
- College of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jingbo Liu
- College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin, China
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2
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Guo J, Wu L, Ye YX, Zhu F, Xu J, Ouyang G. Two-Dimensional Conductive Metal-Organic Framework for Small-Molecule Sensing in Aqueous Solution. Anal Chem 2023; 95:13412-13416. [PMID: 37624146 DOI: 10.1021/acs.analchem.3c02417] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Two-dimensional (2D) conductive metal-organic frameworks (cMOFs) have emerged as powerful transducers for electrochemical sensing. However, electrochemical sensing in aqueous solutions remains at a very early stage for 2D cMOFs. Herein, the interfacial capacitances of a 2D cMOF are utilized for electrochemical sensing for the first time. Various redox-innocent compounds along with redox-active compounds in aqueous solutions are successfully detected based on the responses of two capacitance peaks at low voltages. The quantitative sensitivity to ascorbic acid is even an order of magnitude higher than the previous voltammetric method. Further investigation demonstrates that the responses are rooted in the pseudocapacitances of the 2D cMOF, i.e., the transitions among the multiple redox states of the ligands. The analytes are suggested to alert the d-p conjugation and exchange electrons with the 2D cMOF. These deep insights in response mechanisms represent an important step for promoting the application of 2D cMOFs in chemical sensing.
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Affiliation(s)
- Jing Guo
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Lihua Wu
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Yu-Xin Ye
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Fang Zhu
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Jianqiao Xu
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Gangfeng Ouyang
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
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3
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Aptamer-functionalized capacitive biosensors. Biosens Bioelectron 2023; 224:115014. [PMID: 36628826 DOI: 10.1016/j.bios.2022.115014] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/17/2022] [Accepted: 12/13/2022] [Indexed: 12/25/2022]
Abstract
The growing use of aptamers as target recognition elements in label-free biosensing necessitates corresponding transducers that can be used in relevant environments. While popular in many fields, capacitive sensors have seen relatively little, but growing use in conjunction with aptamers for sensing diverse targets. Few reports have shown physiologically relevant sensitivity in laboratory conditions and a cohesive picture on how target capture modifies the measured capacitance has been lacking. In this review, we assess the current state of the field in three areas: small molecule, protein, and cell sensing. We critically analyze the proposed hypotheses on how aptamer-target capture modifies the capacitance, as many mechanistic postulations appear to conflict between published works. As the field matures, we encourage future works to investigate individual aptamer-target interactions and to interrogate the physical mechanisms leading to measured changes in capacitance. To this point, we provide recommendations on best practices for developing aptasensors with a particular focus on considerations for biosensing in clinical settings.
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4
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Han J, Yu Y, Wang G, Gao X, Geng L, Sun J, Zhang M, Meng X, Li F, Shi C, Sun X, Guo Y, Ahmed MBM. Ultrasensitive electrochemiluminescence aptasensor based on ABEI reduced silver nanoparticles for the detection of profenofos. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 844:157184. [PMID: 35803425 DOI: 10.1016/j.scitotenv.2022.157184] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/27/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
An ultrasensitive electrochemiluminescence (ECL) aptasensor for detection of profenofos was constructed by the reducibility and chemiluminescence property of N-(aminobutyl)-N-(ethylisoluminol) (ABEI). ABEI was used to reduce silver nitrate (AgNO3) to silver nanoparticles (AgNPs), which could be adsorbed on the lattice of graphene oxide (GO) to form ABEI-AgNPs-GO complex. This compound could achieve excellent luminescence. The aptamer (Apt) modified (5') by sulfhydryl groups could be immobilized on AgNPs to capture profenofos. When profenofos was present, the ECL signal of the aptasensor would be weakened. To further demonstrate the successful construction of the aptasensor, cyclic voltammetry tests were performed on an electrochemical workstation and an ECL analyzer, respectively. The standard curve and specificity experiment both showed that the sensor had the advantages of low limit of detection (LOD) and good specificity. Under the optimal conditions, the aptasensor had a good linear response for profenofos in the range of 1 × 10-1-1 × 104 ng/mL. It also had a LOD of 6.7 × 10-2 ng/mL and a correlation coefficient (R2) of 0.9991. The aptasensor had been successfully applied to the detection of profenofos in vegetables. The recovery range of the proposed ECL aptasensor was 98 % ~ 107.4 %.
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Affiliation(s)
- Jie Han
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Yanyang Yu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Guanjie Wang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Xiaolin Gao
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Lingjun Geng
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Jiashuai Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Mei Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Xiaoya Meng
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Falan Li
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Ce Shi
- Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Xia Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China.
| | - Yemin Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China.
| | - Mohamed Bedair Mohamed Ahmed
- Food Toxicology and Contaminants Dept., Division of Food Industries and Nutrition, National Research Centre, 33 El-Bohouth St., Dokki, Cairo 12622, Egypt
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5
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Ahmadi SF, Hojjatoleslamy M, Kiani H, Molavi H. Monitoring of Aflatoxin M1 in milk using a novel electrochemicalaptasensorbased on reduced graphene oxide and gold nanoparticles. Food Chem 2022; 373:131321. [PMID: 34742040 DOI: 10.1016/j.foodchem.2021.131321] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 09/04/2021] [Accepted: 10/01/2021] [Indexed: 11/18/2022]
Abstract
Accurate and rapid detection of Aflatoxins as one of the most hazardous compounds in foodstuffs is very important. In this study, a label-free electrochemical aptasensor was developed to identify aflatoxin M1 using a reduced graphene oxide (rGO) and gold nanoparticles (AuNPs)-based pencil graphite electrode (PGE). The morphological characteristics of the electrode surface were investigated using SEM and rGO functional groups were confirmed by FTIR. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques were used to characterize various stages of electrode modification. In order to optimize the impedimetric response of the aptasensor, aptamer immobilization time, aptamer concentration, and binding aflatoxin M1 with aptamer time were optimized. Under optimal conditions, the linear concentration range of 0.5-800 ng/L and limit of detection (LOD) of 0.3 ng/L were obtained for aflatoxin M1 by measuring the resistance charge transfer data. Finally, the fabricated aptasensor was successfully used to measure AFM1 compared to HPLC method.
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Affiliation(s)
- Seyedeh Fatemeh Ahmadi
- Department of Food Science and Technology, Shahrekord Branch, Islamic Azad University, Shahrekord 88137-33395, Iran
| | - Mohammad Hojjatoleslamy
- Department of Food Science and Technology, Shahrekord Branch, Islamic Azad University, Shahrekord 88137-33395, Iran
| | - Hossein Kiani
- Department of Food Science and Technology, Shahrekord Branch, Islamic Azad University, Shahrekord 88137-33395, Iran; Bioprocessing and Biodetection Lab, Department of Food Science and Technology, University of Tehran, Karaj, Iran
| | - Hooman Molavi
- Department of Food Science and Technology, Shahrekord Branch, Islamic Azad University, Shahrekord 88137-33395, Iran
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6
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Qi H, Hu Z, Yang Z, Zhang J, Wu JJ, Cheng C, Wang C, Zheng L. Capacitive Aptasensor Coupled with Microfluidic Enrichment for Real-Time Detection of Trace SARS-CoV-2 Nucleocapsid Protein. Anal Chem 2022; 94:2812-2819. [PMID: 34982528 PMCID: PMC8751652 DOI: 10.1021/acs.analchem.1c04296] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 12/21/2021] [Indexed: 12/13/2022]
Abstract
The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has lasted for almost 2 years. Stemming its spread has posed severe challenges for clinical virus detection. A long turnaround time, complicated operation, and low accuracy have become bottlenecks in developing detection techniques. Adopting a direct antigen detection strategy, we developed a fast-responding and quantitative capacitive aptasensor for ultratrace nucleocapsid protein detection based on a low-cost microelectrode array (MEA) chip. Employing the solid-liquid interface capacitance with a sensitivity of picofarad level, the tiny change on the MEA surface can be definitively detected. As a result, the limit of detection reaches an ultralow level of femtogram per milliliter in different matrices. Integrated with efficient microfluidic enrichment, the response time of this sensor from the sample to the result is shortened to 15 s, completely meeting the real-time detection demand. Moreover, the wide linear range of the sensor is from 10-5 to 10-2 ng/mL, and a high selectivity of 6369:1 is achieved. After application and evaluation in different environmental and body fluid matrices, this sensor and the detection method have proved to be a label-free, real-time, easy-to-operate, and specific strategy for SARS-CoV-2 screening and diagnosis.
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Affiliation(s)
- Haochen Qi
- College of Electrical and Electronic Engineering,
Wenzhou University, Wenzhou 325035,
China
| | - Zhiwen Hu
- School of Computer and Information Engineering,
Zhejiang Gongshang University, Hangzhou 310018,
China
| | - Zhongliang Yang
- Department of Electronic Engineering,
Tsinghua University, Beijing 100084,
China
| | - Jian Zhang
- College of Electrical and Electronic Engineering,
Wenzhou University, Wenzhou 325035,
China
- School of Food and Biological Engineering,
Hefei University of Technology, Hefei 230009,
China
| | - Jie Jayne Wu
- Department of Electrical Engineering and Computer
Science, The University of Tennessee, Knoxville, Tennessee
37996, United States
| | - Cheng Cheng
- Department of Engineering and Technology Management,
Morehead State University, Morehead, Kentucky 40351
United States
| | - Chunchang Wang
- Laboratory of Dielectric Functional Materials, School of
Materials Physics and Engineering, Anhui University, Hefei
230601, China
| | - Lei Zheng
- School of Food and Biological Engineering,
Hefei University of Technology, Hefei 230009,
China
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7
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Xie M, Zhao F, Zhang Y, Xiong Y, Han S. Recent advances in aptamer-based optical and electrochemical biosensors for detection of pesticides and veterinary drugs. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108399] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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A novel electrochemiluminescence aptasensor based on copper-gold bimetallic nanoparticles and its applications. Biosens Bioelectron 2021; 194:113601. [PMID: 34530372 DOI: 10.1016/j.bios.2021.113601] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/16/2021] [Accepted: 08/26/2021] [Indexed: 12/12/2022]
Abstract
In this work, a novel electrochemiluminescence (ECL) aptasensor was structured for the detection of four organophosphorus pesticides (OPs). Firstly, multi-walled carbon nanotubes (MWCNTs) were used to create a favorable loading interface for the fixation of tris (2, 2'-bipyridyl) ruthenium (II) (Ru (bpy)32+). At the same time, copper (core)-gold (shell) bimetallic nanoparticles (Cu@Au NPs) were synthesized in the aqueous phase for the sensor construction. Gold nanoparticles (Au NPs) could promote the electrochemiluminescence intensity of Ru (bpy)32+ with high efficiency by catalyzing the oxidation process of tri-n-propylamine (TPrA). Compared with the Au NPs, Cu@Au NPs increased the solid loading of Au NPs by virtue of the large specific surface area of copper nanoparticles (Cu NPs), which could further improve the sensitivity of aptasensor. When OPs were added, the ECL intensity was significantly reduced, and the concentration of OPs could be detected through the ECL intensity. Under the optimum conditions, the aptasensor had a wider dynamic range and ultra-low detection limit for the detection of four pesticides: profenofos, isocarbophos, phorate, and omethoate, and their detection limits were 3 × 10-4 ng/mL, 3 × 10-4 ng/mL, 3 × 10-3 ng/mL, and 3 × 10-2 ng/mL respectively (S/N = 3). The aptasensor had the merits of good stability, reproducibility, and specificity, and had a favorable recovery rate in detecting OPs residues in vegetables. This work provided an effective method for the construction of a simple, rapid, and sensitive biosensor.
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Mirzajani H, Cheng C, Vafaie RH, Wu J, Chen J, Eda S, Aghdam EN, Ghavifekr HB. Optimization of ACEK-enhanced, PCB-based biosensor for highly sensitive and rapid detection of bisphenol a in low resource settings. Biosens Bioelectron 2021; 196:113745. [PMID: 34753078 DOI: 10.1016/j.bios.2021.113745] [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: 08/15/2021] [Revised: 10/18/2021] [Accepted: 10/28/2021] [Indexed: 11/02/2022]
Abstract
In this study, we developed a low-cost and easy-to-use capacitive biosensor employing printed-circuit-board (PCB)-based technique for electrode fabrication and a specific alternative current (AC) signal for AC Electrokinetics (ACEK) effect excitation. Fast, accurate, and highly sensitive detection and quantification of bisphenol A (BPA) was achieved. An easy characterization of the biofunctionalization process is introduced by measuring interfacial capacitance which is simple and superior to most of methods currently in use. The frequency and amplitude of the AC signal used for capacitive interrogation were optimized to achieve maximum interfacial capacitance and maximum sensitivity. To evaluate the performance of the developed biosensor, its operation was compared with in-house microfabricated and commercially available electrodes. The limit-of-detection (LOD) obtained using the PCB-based electrodes was found to be at least one order of magnitude lower than that obtained with the commercial and in-house microfabricated electrodes. The linear range for BPA detection was wide from 1 fM to 10 pM with an LOD of 109.5 aM and sample to result in 20s. The biosensor operation was validated by spike-and-recovery tests of BPA using commercial food samples. Thus, the platform has a potential as an on-site detection of bisphenol A in low-resource settings.
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Affiliation(s)
- Hadi Mirzajani
- The University of Tennessee, Knoxville, Department of Electrical Engineering and Computer Science, 1520 Middle Drive, Knoxville, TN, 37966, USA; Department of Mechanical Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, 34450 Istanbul, Turkey; Sahand University of Technology, Department of Electrical Engineering, Microelectronics Research Lab., Tabriz, Iran
| | - Cheng Cheng
- The University of Tennessee, Knoxville, Department of Electrical Engineering and Computer Science, 1520 Middle Drive, Knoxville, TN, 37966, USA; School of Engineering and Computer Science, Morehead State University, 150 University Blvd., Morehead, KY, 40351, USA
| | | | - Jayne Wu
- The University of Tennessee, Knoxville, Department of Electrical Engineering and Computer Science, 1520 Middle Drive, Knoxville, TN, 37966, USA.
| | - Jiangang Chen
- The University of Tennessee, Department of Public Health, 1914 Andy Holt Avenue, Knoxville, TN, 37996, USA
| | - Shigotoshi Eda
- University of Tennessee Institute of Agriculture, Department of Forestry, Wildlife and Fisheries, 2505 E. J. Chapman Drive, Knoxville, TN, 37996, USA
| | - Esmaeil Najafi Aghdam
- Sahand University of Technology, Department of Electrical Engineering, Microelectronics Research Lab., Tabriz, Iran
| | - Habib Badri Ghavifekr
- Sahand University of Technology, Department of Electrical Engineering, Microelectronics Research Lab., Tabriz, Iran
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10
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Qi H, Huang X, Wu J, Zhang J, Wang F, Qu H, Zheng L. A disposable aptasensor based on a gold-plated coplanar electrode array for on-site and real-time determination of Cu 2. Anal Chim Acta 2021; 1183:338991. [PMID: 34627507 DOI: 10.1016/j.aca.2021.338991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 11/25/2022]
Abstract
Copper ion (Cu2+) is an important cofactor for many enzymes in human body. Either excessive or deficient Cu2+ in the body may cause serious dysfunctions and diseases. So sensitive determination of Cu2+ in environmental samples is of more significance for evaluation and control of Cu2+ intake. Based on a low-cost gold-plated coplanar electrode array, a disposable aptasensor is developed with an ultra-sensitive indicator of interfacial capacitance. Modified with a specially isolated DNA aptamer for Cu2+, this sensor achieves a high selectivity of 1207: 1 against non-target ions. To realize real-time response, alternating-current electrothermal effect is integrated into the capacitance measuring process to efficiently enrich the trace Cu2+. This sensor reaches a limit of detection of 2.97 fM, with a linear range from 5.0 fM to 50 pM. The response time is only 15 s, which can meet the real-time detection requirement. On-site test of practical samples is also realized using the disposable sensor combined with a handheld inductance/capacitance/resistance meter. This sensor with its portable test system provides a cost-efficient solution for on-site, real-time and sensitive detection of Cu2+, showing great application value in environment monitoring.
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Affiliation(s)
- Haochen Qi
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, China; School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China
| | - Xiaofan Huang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, 37996, USA.
| | - Jian Zhang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, China; School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China.
| | - Fei Wang
- Beijing Smartchip Microelectronics Technology Company Limited, Beijing, 102200, China
| | - Hao Qu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Lei Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
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11
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Chen S, Huang M, Huang M, Feng L. Fluorometric determination of ziram using CsPbBr 3 quantum dots. Mikrochim Acta 2021; 188:390. [PMID: 34677687 DOI: 10.1007/s00604-021-05045-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 10/02/2021] [Indexed: 11/24/2022]
Abstract
A strategy based on CsPbBr3 quantum dots (QDs) is described for the determination of ziram pesticide. A facile and inert gas-free method was used for the synthesis of CsPbBr3 QDs. The obtained CsPbBr3 QDs displayed turn-off fluorescence behavior for ziram. The fluorescence intensity of the CsPbBr3 QDs (Ex/Em = 365/516 nm) was inversely proportional to the concentration of ziram (0.10 to 50.0 ppm) with a detection limit of 0.086 ppm. Notably, satisfactory recoveries (100 ± 0.25 to 107 ± 5.72%) were obtained in spiked fruit samples, which demonstrated that this method is capable of detecting ziram in real samples. In addition, the mechanism for the detection of ziram was investigated in detail. According to the results, this mechanism can be tentatively explained by fluorescence quenching originating from the increased surface defects and the structural changes of the CsPbBr3 QDs. The detection ability of this strategy shows promising applicability in food safety.
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Affiliation(s)
- Shuqin Chen
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, People's Republic of China.
| | - Mengna Huang
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, People's Republic of China
| | - Mianli Huang
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, People's Republic of China
| | - Liang Feng
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, People's Republic of China.
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12
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Song M, Lin X, Peng Z, Zhang M, Wu J. Enhancing affinity-based electroanalytical biosensors by integrated AC electrokinetic enrichment-A mini review. Electrophoresis 2021; 43:201-211. [PMID: 34453857 DOI: 10.1002/elps.202100168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/03/2021] [Accepted: 08/20/2021] [Indexed: 11/09/2022]
Abstract
Biosensors play a central role in moving diagnostics to being on-site or decentralized. Affinity biosensor, an important category of biosensors, has important applications in clinical diagnosis, pharmaceuticals, immunology, and other fields. Affinity biosensors rely on specific binding between target analytes and biological ligands such as antibodies, nucleic acids, or other receptors to generate measurable signals. Oftentimes the target analytes in practical samples are of low abundance in a complex matrix. Traditional affinity biosensors mainly rely on random diffusion of analytes in solution to conjugate with biorecognition elements on the sensor surface of electrodes. The process may take hours or even days, which is not conducive to rapid and sensitive detection of biosensors. Therefore, it is strongly desired to incorporate an enrichment mechanism for target analytes into biosensor-based detection. AC electrokinetic (ACEK) effect can realize rapid enrichment of analytes by application of AC electric fields, which holds great promise for achieving high sensitivity, low detection limit, and rapid turnaround. This article reviews the studies of affinity biosensors integrated with ACEK enrichment in the past decade, and summarizes the latest detection methods, detection devices and applications, hoping to provide some insights and references for researchers in related fields.
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Affiliation(s)
- Min Song
- Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education of China, Chongqing University, Chongqing, P. R. China
| | - Xiaogang Lin
- Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education of China, Chongqing University, Chongqing, P. R. China
| | - Zhijia Peng
- Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education of China, Chongqing University, Chongqing, P. R. China
| | - Maoxiao Zhang
- Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education of China, Chongqing University, Chongqing, P. R. China
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, Tennessee, USA
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13
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Cheng C, Wu JJ, Chen J. A Sensitive and Specific Genomic RNA Sensor for Point-of-Care Screening of Zika Virus from Serum. Anal Chem 2021; 93:11379-11387. [PMID: 34378378 DOI: 10.1021/acs.analchem.0c05415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This work presents a sensitive and specific single-step RNA sensor for Zika virus (ZIKV) in serum. Using AC electrokinetics (ACEK)-enhanced capacitive sensing technology, ZIKV genomic RNA (gRNA) can be directly detected from serum. The sensors are interdigitated electrodes modified with oligonucleotide probes complementary to the conserved regions of ZIKV gRNA. The ACEK capacitive sensing applies an optimized AC excitation signal over the sensor, which induces ACEK microfluidic enrichment of analytes and also simultaneously performs real-time monitoring of hybridization of ZIKV gRNA on the sensor surface. Hence, the sensing procedures are simple with rapid turn-around time and good specificity and sensitivity. A series of experiments are conducted to optimize the sensor performance. The performance of the sensor is investigated for three different probes, two functionalization buffers, and different hybridization buffers. With the optimized sensing protocol, this method can detect spiked ZIKV gRNA from human serum within 30 s and reach a limit of detection of 78.8 copies/μL in analytical samples and as low as 287.5 copies/μL in neat serum. The sensors can successfully differentiate between the RNAs of the ZIKV and dengue virus, two viruses with similar transmission paths and symptoms. The sensor is simple to use and requires no labeling or sophisticated process typically involved in a polymerase chain reaction, hybridization chain reaction, or nucleic acid sequence-based amplification.
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Affiliation(s)
- Cheng Cheng
- School of Engineering and Computer Science, Morehead State University, 150 University Blvd., Morehead, Kentucky 40351, United States.,Department of Electrical Engineering and Computer Science, The University of Tennessee, 1520 Middle Drive, Knoxville, Tennessee 37996, United States
| | - Jie Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, 1520 Middle Drive, Knoxville, Tennessee 37996, United States
| | - Jiangang Chen
- Department of Public Health, The University of Tennessee, 1914 Andy Holt Avenue, Knoxville, Tennessee 37996, United States
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14
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Zeng Z, Tang J, Zhang M, Pu S, Tang D. Ultrasensitive zero-background photoelectrochemical biosensor for analysis of organophosphorus pesticide based on in situ formation of DNA-templated Ag 2S photoactive materials. Anal Bioanal Chem 2021; 413:6279-6288. [PMID: 34373932 DOI: 10.1007/s00216-021-03582-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/24/2021] [Accepted: 07/27/2021] [Indexed: 01/09/2023]
Abstract
Herein, a novel signal-on photoelectrochemical (PEC) biosensor with nearly zero background noise (ZBN) was first fabricated to determine the presence of organophosphorus pesticide based on in situ formation of DNA-templated Ag2S photoactive materials, accompanied by hybridization chain reaction (HCR) signal amplification. The capture probe (S1) on the gold nanoparticle-modified electrode can hybridize with the aptamer molecule to generate a simple PEC biosensor. In the presence of a target molecule, the aptamer molecule is released on the double-stranded DNA (dsDNA)-modified PEC biosensor. Meanwhile, the capture probe remains on the electrode and can open the DNA hairpins (H1, H2) which are rich in cytosine, to trigger the HCR reaction. The rich "C" strands are uncovered after formation of a long dsDNA polymer strand, which can assemble multiple silver ions (Ag+) by means of by C-Ag+-C chelation. Then, a large number of Ag2S can be generated by challenging with S2- solution, producing a satisfactory photocurrent signal. The photoactive material is formed in situ, which eliminates the laborious operation. Moreover, the signal can be highly amplified with nearly zero background noise and HCR signal amplification. Under optimal conditions, the ZBN aptasensor exhibited high sensitivity and selectivity, with a low detection limit of 2 pg mL-1 for malathion. Importantly, the sensing platform can also be applied to determine the presence of malathion in real samples. In this assay, a novel signal-on photoelectrochemical biosensor with nearly zero background noise was first fabricated to determine the presence of organophosphorus pesticide based on in situ formation of DNA-templated Ag2S photoactive materials, accompanied by hybridization chain reaction signal amplification.
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Affiliation(s)
- Zhiyao Zeng
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang, 330022, Jiangxi, People's Republic of China
| | - Juan Tang
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang, 330022, Jiangxi, People's Republic of China. .,Jiangxi Key Laboratory of Organic Chemistry, Nanchang, 330013, Jiangxi, People's Republic of China.
| | - Ming Zhang
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang, 330022, Jiangxi, People's Republic of China
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry, Nanchang, 330013, Jiangxi, People's Republic of China
| | - Dianping Tang
- Key Laboratory of Analysis and Detection for Food Safety (Ministry of Education of China and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou, 350108, Fujian, People's Republic of China
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15
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Biosensors for the detection of organophosphate exposure by a new diethyl thiophosphate-specific aptamer. Biotechnol Lett 2021; 43:1869-1881. [PMID: 34231090 DOI: 10.1007/s10529-021-03158-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 06/23/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE An aptamer specifically binding to diethyl thiophosphate (DETP) was constructed and incorporated in an optical sensor and electrochemical techniques to enable the specific measurement of DETP as a metabolite and a biomarker of organophosphate exposure. RESULTS A DETP-bound aptamer was selected from the library using capillary electrophoresis-systematic evolution of ligands by exponential enrichment (CE-SELEX). A colorimetric method revealed that the aptamer had the highest affinity for DETP, with a mean Kd value (± SD) of 0.103 ± 0.014 µM. The docking results and changes in resistance showed that the selectivity of the aptamer for DETP was higher than that for the similar structures of dithiophosphate (DEDTP) and diethyl phosphate (DEP). The altered amplitude of cyclic voltammetry showed a linear range of DETP detection covering 0.0001-10 µg/ml with a limit of detection of 0.007 µg/ml. The recovery value of a real sample of pH 7 was 97.2%. CONCLUSIONS The current method showed great promise in using the DETP-specific aptamer to detect the exposure history to organophosphates by measuring their metabolites, although degradation of organophosphate parent compounds might occur.
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Rapid and Sensitive Detection of miRNA Based on AC Electrokinetic Capacitive Sensing for Point-of-Care Applications. SENSORS 2021; 21:s21123985. [PMID: 34207808 PMCID: PMC8226656 DOI: 10.3390/s21123985] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/25/2021] [Accepted: 06/03/2021] [Indexed: 12/13/2022]
Abstract
A sensitive and efficient method for microRNAs (miRNAs) detection is strongly desired by clinicians and, in recent years, the search for such a method has drawn much attention. There has been significant interest in using miRNA as biomarkers for multiple diseases and conditions in clinical diagnostics. Presently, most miRNA detection methods suffer from drawbacks, e.g., low sensitivity, long assay time, expensive equipment, trained personnel, or unsuitability for point-of-care. New methodologies are needed to overcome these limitations to allow rapid, sensitive, low-cost, easy-to-use, and portable methods for miRNA detection at the point of care. In this work, to overcome these shortcomings, we integrated capacitive sensing and alternating current electrokinetic effects to detect specific miRNA-16b molecules, as a model, with the limit of detection reaching 1.0 femto molar (fM) levels. The specificity of the sensor was verified by testing miRNA-25, which has the same length as miRNA-16b. The sensor we developed demonstrated significant improvements in sensitivity, response time and cost over other miRNA detection methods, and has application potential at point-of-care.
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17
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Shi X, Yang F, Liu H, Zhang M, Sun X, Guo Y. Supersensitive Electrochemiluminescence Aptasensor for Malathion Residues Based on ATO@TiO2 and AgNPs. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-02066-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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18
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Zhang J, Fang X, Mao Y, Qi H, Wu J, Liu X, You F, Zhao W, Chen Y, Zheng L. Real-time, selective, and low-cost detection of trace level SARS-CoV-2 spike-protein for cold-chain food quarantine. NPJ Sci Food 2021; 5:12. [PMID: 34075052 PMCID: PMC8357935 DOI: 10.1038/s41538-021-00094-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/06/2021] [Indexed: 02/08/2023] Open
Abstract
Due to the friendly temperature for virus survival, SARS-CoV-2 is frequently found in cold-chain foods, posing a serious threat to public health. Utilizing an interdigitated microelectrode chip modified with an antibody probe and integrating dielectrophoresis enrichment with interfacial capacitance sensing, a strategy is presented for the detection of trace level spike-protein from SARS-CoV-2. It achieves a limit of detection as low as 2.29 × 10-6 ng/mL in 20 s, with a wide linear range of 10-5-10-1 ng/mL and a selectivity of 234:1. The cost for a single test can be controlled to ~1 dollar. This strategy provides a competitive solution for real-time, sensitive, selective, and large-scale application in cold-chain food quarantine.
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Affiliation(s)
- Jian Zhang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China.,School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Xin Fang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China
| | - Yu Mao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Haochen Qi
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China.
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, USA.
| | - Xiaoru Liu
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China
| | - Fangshuo You
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China
| | - Wenci Zhao
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China
| | - Ying Chen
- Agro-product Safety Research Centre, Chinese Academy of Inspection and Quarantine, Beijing, China
| | - Lei Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.
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19
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Mahmoudpour M, Karimzadeh Z, Ebrahimi G, Hasanzadeh M, Ezzati Nazhad Dolatabadi J. Synergizing Functional Nanomaterials with Aptamers Based on Electrochemical Strategies for Pesticide Detection: Current Status and Perspectives. Crit Rev Anal Chem 2021; 52:1818-1845. [PMID: 33980072 DOI: 10.1080/10408347.2021.1919987] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Owing to the high toxicity and large-scale use of pesticides, it is imperative to develop selective, sensitive, portable, and convenient sensors for rapid monitoring of pesticide. Therefore, the electrochemical detection platform offers a promising analytical approach since it is easy to operate, economical, efficient, and user-friendly. Meanwhile, with advances in functional nanomaterials and aptamer selection technologies, numerous sensitivity-enhancement techniques alongside a widespread range of smart nanomaterials have been merged to construct novel aptamer probes to use in the biosensing field. Hence, this study intends to highlight recent development and promising applications on the functional nanomaterials with aptamers for pesticides detection based on electrochemical strategies. We also reviewed the current novel aptamer-functionalized microdevices for the portability of pesticides sensors. Furthermore, the major challenges and future prospects in this field are also discussed to provide ideas for further research.
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Affiliation(s)
- Mansour Mahmoudpour
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zahra Karimzadeh
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ghasem Ebrahimi
- Department of Biochemistry and Clinical Laboratories, Faculty of Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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20
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Recent developments in non-enzymatic (bio)sensors for detection of pesticide residues: Focusing on antibody, aptamer and molecularly imprinted polymer. Talanta 2021; 232:122397. [PMID: 34074393 DOI: 10.1016/j.talanta.2021.122397] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 12/13/2022]
Abstract
The utilization of pesticides has been increased in recent years due to population growth and increasing urbanization. The constant use of pesticides has resulted in contamination of the environment and agricultural products with serious human health concerns associated with their use. Therefore, detection and quantification of pesticides by sensitive and selective methods is highly required in food safety management. Traditional detection methods cannot realize highly sensitive, selective and on-site detection, which limits their application. (Bio)sensors and (bio)assays are emerging tools with unique properties such as rapid, sensitive, efficient and portable detection. Among them, enzyme-based biosensors have been widely developed and some have even been commercialized. However, they suffer from some limitations such as instability and low reproducibility that originate from the nature of enzyme. Non-enzymatic (bio)sensors overcome the current limitations of enzyme-based detection methods and provide great potential for efficient, highly sensitive and low-cost detection assays using smart and miniaturized devices. In this study, we provide an overview of recent advances and new trends in optical and electrochemical non-enzymatic (bio)sensors for the detection of pesticides by focusing on antibody, aptamer and molecularly imprinted polymer (MIP) as recognition elements. Performance, advantages and drawbacks of the developed (bio)sensors are discussed well. The main advantage these recognition elements is their stability over an extended period of time compared to the enzymes. Furthermore, the combination of nanomaterials in these (bio)sensors can significantly improve their performance.
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21
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Rovina K, Vonnie JM, Mantihal S, Joseph J, Halid NFA. Development of films based on tapioca starch/gold nanoparticles for the detection of organophosphorus pesticides. J Verbrauch Lebensm 2021. [DOI: 10.1007/s00003-021-01321-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Yang C, Yang C, Li X, Zhang A, He G, Wu Q, Liu X, Huang S, Huang X, Cui G, Hu N, Xie X, Hang T. Liquid-like Polymer Coating as a Promising Candidate for Reducing Electrode Contamination and Noise in Complex Biofluids. ACS APPLIED MATERIALS & INTERFACES 2021; 13:4450-4462. [PMID: 33443399 DOI: 10.1021/acsami.0c18419] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Biosensors that can automatically and continuously track fluctuations in biomarker levels over time are essential for real-time sensing in biomedical and environmental applications. Although many electrochemical sensors have been developed to quickly and sensitively monitor biomarkers, their sensing stability in complex biofluids is disturbed by unavoidable nonspecific adhesion of proteins or bacteria. Recently, various substrate surface modification techniques have been developed to resist biofouling, yet functionalization of electrodes in sensors to be anti-biofouling is rarely achieved. Here, we report an integrated three-electrode system (ITES) modified with a "liquid-like" polydimethylsiloxane (PDMS) brush that can continuously and stably monitor reactive oxygen species (ROS) in complex fluids. Based on the slippery "liquid-like" coating, the modified ITES surface could prevent the adhesion of various liquids as well as the adhesion of proteins and bacteria. The "liquid-like" coating does not significantly affect the sensitivity of the electrode in detecting ROS, while the sensing performance could remain stable and free of bacterial attack even after 3 days of incubation with bacteria. In addition, the PDMS brush-modified ITES (PMITES) could continuously record ROS levels in bacterial-rich fluids with excellent stability over 24 h due to the reduced bacterial contamination on the electrode surface. This technique offers new opportunities for continuous and real-time monitoring of biomarkers that will facilitate the development of advanced sensors for biomedical and environmental applications.
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Affiliation(s)
- Chengduan Yang
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
| | - Cheng Yang
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
| | - Xiangling Li
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
- School of Biomedical Engineering, Sun Yat-Sen University, Guangzhou 510080, China
| | - Aihua Zhang
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
| | - Gen He
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
| | - Qianni Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510080, China
| | - Xingxing Liu
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
| | - Shuang Huang
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
| | - Xinshuo Huang
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
| | - Guofeng Cui
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510080, China
| | - Ning Hu
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
| | - Xi Xie
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510080, China
| | - Tian Hang
- The First Affiliated Hospital of Sun Yat-Sen University; State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510080, China
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23
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Phopin K, Tantimongcolwat T. Pesticide Aptasensors-State of the Art and Perspectives. SENSORS 2020; 20:s20236809. [PMID: 33260648 PMCID: PMC7730859 DOI: 10.3390/s20236809] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 11/16/2020] [Accepted: 11/25/2020] [Indexed: 02/07/2023]
Abstract
Contamination by pesticides in the food chain and the environment is a worldwide problem that needs to be actively monitored to ensure safety. Unfortunately, standard pesticide analysis based on mass spectrometry takes a lot of time, money and effort. Thus, simple, reliable, cost-effective and field applicable methods for pesticide detection have been actively developed. One of the most promising technologies is an aptamer-based biosensor or so-called aptasensor. It utilizes aptamers, short single-stranded DNAs or RNAs, as pesticide recognition elements to integrate with various innovative biosensing technologies for specific and sensitive detection of pesticide residues. Several platforms for aptasensors have been dynamically established, such as colorimetry, fluorometry, electrochemistry, electrochemiluminescence (ECL) and so forth. Each platform has both advantages and disadvantages depending on the purpose of use and readiness of technology. For example, colorimetric-based aptasensors are more affordable than others because of the simplicity of fabrication and resource requirements. Electrochemical-based aptasensors have mainly shown better sensitivity than others with exceedingly low detection limits. This paper critically reviews the progression of pesticide aptasensors throughout the development process, including the selection, characterization and modification of aptamers, the conceptual frameworks of integrating aptamers and biosensors, the ASSURED (affordable, sensitive, specific, user-friendly, rapid and robust, equipment-free and deliverable to end users) criteria of different platforms and the future outlook.
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Affiliation(s)
- Kamonrat Phopin
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Nakorn Pathom 73170, Thailand;
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Tanawut Tantimongcolwat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Nakorn Pathom 73170, Thailand;
- Correspondence:
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24
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Broad-spectrum electrochemical immunosensor based on one-step electrodeposition of AuNP-Abs and Prussian blue nanocomposite for organophosphorus pesticide detection. Bioprocess Biosyst Eng 2020; 44:585-594. [PMID: 33161490 DOI: 10.1007/s00449-020-02472-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 10/24/2020] [Indexed: 12/21/2022]
Abstract
Broad-spectrum antibodies can effectively recognize substances with similar structures and have broad application prospects in field rapid detection. In this study, broad-spectrum antibodies (Abs) against organophosphorus pesticides (OPs) were used as sensitive recognition elements, which could effectively recognize most OPs. Gold nanoparticles (AuNPs) have good biocompatibility. It combined with Abs to form a gold-labeled probe (AuNPs-Abs), which enhances the effective binding of antibodies to nanomaterials. Prussian blue (PB) was added to electrodeposition solution to enhance the conductivity, resulting in superior electrochemical performance. The AuNP-Abs-PB composite film was prepared by electrodeposition on the electrode surface to improve the anti-interference ability and stability of the immunosensor. Under the optimal experimental conditions, the immunosensor had a wide detection range (IC20-IC80: 1.82 × 10-3-3.29 × 104 ng/mL) and high sensitivity. Most importantly, it was simple to be prepared and could be used to detect multiple OPs.
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25
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Wang W, Wang X, Cheng N, Luo Y, Lin Y, Xu W, Du D. Recent advances in nanomaterials-based electrochemical (bio)sensors for pesticides detection. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116041] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Rapid Multi-Residue Detection Methods for Pesticides and Veterinary Drugs. Molecules 2020; 25:molecules25163590. [PMID: 32784605 PMCID: PMC7464912 DOI: 10.3390/molecules25163590] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/29/2020] [Accepted: 08/05/2020] [Indexed: 01/11/2023] Open
Abstract
The excessive use or abuse of pesticides and veterinary drugs leads to residues in food, which can threaten human health. Therefore, there is an extremely urgent need for multi-analyte analysis techniques for the detection of pesticide and veterinary drug residues, which can be applied as screening techniques for food safety monitoring and detection. Recent developments related to rapid multi-residue detection methods for pesticide and veterinary drug residues are reviewed herein. Methods based on different recognition elements or the inherent characteristics of pesticides and veterinary drugs are described in detail. The preparation and application of three broadly specific recognition elements-antibodies, aptamers, and molecular imprinted polymers-are summarized. Furthermore, enzymatic inhibition-based sensors, near-infrared spectroscopy, and SERS spectroscopy based on the inherent characteristics are also discussed. The aim of this review is to provide a useful reference for the further development of rapid multi-analyte analysis of pesticide and veterinary drug residues.
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