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Mei X, Wang X, Huang W, Zhu J, Liu K, Wang X, Cai W, He R. A novel polycaprolactone/polypyrrole/β-cyclodextrin electrochemical flexible sensor for dinotefuran pesticide detection. Food Chem 2024; 434:137194. [PMID: 37738813 DOI: 10.1016/j.foodchem.2023.137194] [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: 06/02/2023] [Revised: 07/17/2023] [Accepted: 08/16/2023] [Indexed: 09/24/2023]
Abstract
The monitoring and the rapid quantification of pesticides and their residues are becoming increasingly important in the field of food safety. Herein, the polycaprolactone/polypyrrole/β-cyclodextrin (PCL/PPy/β-CD) flexible sensor was developed for the electrochemical determination of new neonicotinoid insecticide Dinotefuran (DNF). The morphology, structure, and hydrophilicity of PCL/PPy/β-CD sensor probes were characterized by SEM, FTIR spectroscopy and static contact angle test. Under optimum conditions, the fabricated PCL/PPy/β-CD sensor exhibited excellent electrochemical sensing performance for DNF with a low detection limit of 0.05 μM in the linear concentration range from 0.2 μM to 50 μM and high sensitivity 14.07 μA·μM-1·cm-2, which attributed to the two-stage porous structure, good electron transfer rate and the adsorption effect. The PCL/PPy/β-CD sensor also showed reproducibility (RSD = 4.76%), stability, and high selectivity towards DNF. In addition, a real samples investigation in rice with recoveries of 96.67 % ∼ 103.65 % implied the good application potential of PCL/PPy/β-CD in DNF monitoring.
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Affiliation(s)
- Xinliang Mei
- College of Engineering, Nanjing Agricultural University, Nanjing 210031, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), UNIST-NUIST Research Center of Environment and Energy, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China; Joyson Safety Systems (Huzhou) Co., Ltd., Huzhou, Zhejiang 313103, PR China
| | - Xingyu Wang
- College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
| | - Wenshuai Huang
- College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
| | - Jiaxing Zhu
- Heilongjiang North Tools Co., Ltd., Mudanjiang, Heilongjiang 157013, PR China
| | - Kecheng Liu
- College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
| | - Xingsheng Wang
- College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
| | - Wei Cai
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), UNIST-NUIST Research Center of Environment and Energy, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China.
| | - Ruiyin He
- College of Engineering, Nanjing Agricultural University, Nanjing 210031, China.
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Wahyuni WT, Putra BR, Rahman HA, Anindya W, Hardi J, Rustami E, Ahmad SN. Electrochemical Sensors based on Gold-Silver Core-Shell Nanoparticles Combined with a Graphene/PEDOT:PSS Composite Modified Glassy Carbon Electrode for Paraoxon-ethyl Detection. ACS OMEGA 2024; 9:2896-2910. [PMID: 38250352 PMCID: PMC10795144 DOI: 10.1021/acsomega.3c08349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 01/23/2024]
Abstract
Herein, a nonenzymatic detection of paraoxon-ethyl was developed by modifying a glassy carbon electrode (GCE) with gold-silver core-shell (Au-Ag) nanoparticles combined with the composite of graphene with poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS). These core-shell nanoparticles (Au-Ag) were synthesized using a seed-growth method and characterized using UV-vis spectroscopy and high-resolution transmission electron microscopy (HR-TEM) techniques. Meanwhile, the structural properties, surface morphology and topography, and electrochemical characterization of the composite of Au-Ag core-shell/graphene/PEDOT:PSS were analyzed using infrared spectroscopy, field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), and electrochemical impedance spectroscopy (EIS) techniques. Moreover, the proposed sensor for paraoxon-ethyl detection based on Au-Ag core-shell/graphene/PEDOT:PSS modified GCE demonstrates good electrochemical and electroanalytical performance when investigated with cyclic voltammetry (CV), differential pulse voltammetry (DPV), and chronoamperometry techniques. It was found that the synergistic effect between Au-Ag core-shell nanoparticles and the composite of graphene/PEDOT:PSS provides a higher conductivity and enhanced electrocatalytic activity for paraoxon-ethyl detection at an optimum pH of 7. At pH 7, the proposed sensor for paraoxon-ethyl detection shows a linear range of concentrations from 0.2 to 100 μM with a limit of detection of 10 nM and high sensitivity of 3.24 μA μM-1 cm-2. In addition, the proposed sensor for paraoxon-ethyl confirmed good reproducibility, with the possibility of being further developed as a disposable electrode. This sensor also displayed good selectivity in the presence of several interfering species such as diazinon, carbaryl, ascorbic acid, glucose, nitrite, sodium bicarbonate, and magnesium sulfate. For practical applications, this proposed sensor was employed for the determination of paraoxon-ethyl in real samples (fruits and vegetables) and showed no significant difference from the standard spectrophotometric technique. In conclusion, this proposed sensor might have a potential to be developed as a platform of electrochemical sensors for pesticide detection.
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Affiliation(s)
- Wulan Tri Wahyuni
- Department
of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, 16680Bogor,Indonesia
- Tropical
Biopharma Research Center, Institute of Research and Community Empowerment, IPB University, 16680 Bogor,Indonesia
| | - Budi Riza Putra
- Research
Center for Metallurgy, National Research and Innovation Agency, South Tangerang 15315, Banten, Indonesia
| | - Hemas Arif Rahman
- Department
of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, 16680Bogor,Indonesia
| | - Weni Anindya
- Department
of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, 16680Bogor,Indonesia
| | - Jaya Hardi
- Department
of Chemistry, Faculty of Mathematics and Natural Sciences, Tadulako University, 94148 Kota Palu,Indonesia
| | - Erus Rustami
- Department
of Physics, Faculty of Mathematics and Natural Sciences, IPB University, 16680 Bogor,Indonesia
| | - Shahrul Nizam Ahmad
- School
of
Chemistry and Environment, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia
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3
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Jiang Z, Zhuang Y, Guo S, Sohan ASMMF, Yin B. Advances in Microfluidics Techniques for Rapid Detection of Pesticide Residues in Food. Foods 2023; 12:2868. [PMID: 37569137 PMCID: PMC10417549 DOI: 10.3390/foods12152868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Food safety is a significant issue that affects people worldwide and is tied to their lives and health. The issue of pesticide residues in food is just one of many issues related to food safety, which leave residues in crops and are transferred through the food chain to human consumption. Foods contaminated with pesticide residues pose a serious risk to human health, including carcinogenicity, neurotoxicity, and endocrine disruption. Although traditional methods, including gas chromatography, high-performance liquid chromatography, chromatography, and mass spectrometry, can be used to achieve a quantitative analysis of pesticide residues, the disadvantages of these techniques, such as being time-consuming and costly and requiring specialist staff, limit their application. Therefore, there is a need to develop rapid, effective, and sensitive equipment for the quantitative analysis of pesticide residues in food. Microfluidics is rapidly emerging in a number of fields due to its outstanding strengths. This paper summarizes the application of microfluidic techniques to pyrethroid, carbamate, organochlorine, and organophosphate pesticides, as well as to commercial products. Meanwhile, the study also outlines the development of microfluidics in combination with 3D printing technology and nanomaterials for detecting pesticide residues in food.
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Affiliation(s)
- Zhuoao Jiang
- School of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China; (Z.J.); (Y.Z.); (S.G.)
| | - Yu Zhuang
- School of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China; (Z.J.); (Y.Z.); (S.G.)
| | - Shentian Guo
- School of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China; (Z.J.); (Y.Z.); (S.G.)
| | - A. S. M. Muhtasim Fuad Sohan
- Faculty of Engineering, Department of Mechanical Engineering, The University of Adelaide, Adelaide, SA 5000, Australia;
| | - Binfeng Yin
- School of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China; (Z.J.); (Y.Z.); (S.G.)
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Negahdary M, Akira Ameku W, Gomes Santos B, dos Santos Lima I, Gomes de Oliveira T, Carvalho França M, Angnes L. Recent electrochemical sensors and biosensors for toxic agents based on screen-printed electrodes equipped with nanomaterials. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Picomolar, Electrochemical Detection of Paraoxon Ethyl, by Strongly Coordinated NiCo2O4-SWCNT Composite as an Electrode Material. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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6
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Alam N, Ravikumar CH, Sreeramareddygari M, Somasundrum M, Surareungchai W. Label-free ultra-sensitive colorimetric detection of hepatitis E virus based on oxidase-like activity of MnO 2 nanosheets. Anal Bioanal Chem 2023; 415:703-713. [PMID: 36469053 PMCID: PMC9734815 DOI: 10.1007/s00216-022-04461-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022]
Abstract
Hepatitis E virus (HEV) is an evolving infectious entity that causes viral hepatitis infections worldwide. Current routine methods of identifying and diagnosing HEV are someway laborious and costly. Based on the biomimicking oxidase-like activity of MnO2 nanosheets, we designed a label-free, highly sensitive colorimetric sensing technique for HEV detection. The prepared MnO2 catalyst displays intrinsic biomimicking oxidase-like catalytic activity and efficiently oxidizes the 3,3',5,5'-tetramethylbenzidine (TMB) substrate from colorless to blue colored oxidized TMB (oxTMB) product which can be measured at 652 nm by UV-visible spectrum. When the HEV-DNA was added, DNA adsorbed easily on MnO2 surface through physical adsorption and electrostatic interaction which hinders the oxidase-like catalytic activity of MnO2. Upon the introduction of target, the HEV target DNA binds with its complementary ssDNA on the surface of MnO2, the hybridized DNA releases from the surface of MnO2, which leads to recovery of oxidase-like catalytic activity of MnO2. This strategy was applied to construct a colorimetric technique for HEV detection. The approach works in the linear range of 1 fM-100 nM DNA concentration with the limit of detection (LOD) of 3.26 fM (S/N = 3) and quantitative limit (LOQ) of 36.08 fM. The TMB-MnO2 platform was highly selective for HEV target DNA detection when compared with potential interferences. Result of serum sample analysis demonstrates that this sensing system can be used for clinical diagnostic applications.
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Affiliation(s)
- Naveed Alam
- School of Bioresources and Technology, King Mongkut’s University of Technology Thonburi, Bangkok, 10150 Thailand
| | - Chandan Hunsur Ravikumar
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Jakkasandra Post, Ramangaram Dist, Karnataka 562112 India
| | | | - Mithran Somasundrum
- Biosciences and System Biology Team, Biochemical Engineering and System Biology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency at KMUTT (Bangkhuntien Campus), Bangkok, 10150 Thailand
| | - Werasak Surareungchai
- School of Bioresources and Technology, King Mongkut’s University of Technology Thonburi, Bangkok, 10150 Thailand ,Nanoscience & Nanotechnology Graduate Programme, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok, 10140 Thailand ,Analytical Sciences and National Doping Test Institute, Mahidol University, Bangkok, 10400 Thailand
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7
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Kumari R, Dkhar DS, Mahapatra S, Divya, Singh SP, Chandra P. Nano-Engineered Surface Comprising Metallic Dendrites for Biomolecular Analysis in Clinical Perspective. BIOSENSORS 2022; 12:1062. [PMID: 36551029 PMCID: PMC9775260 DOI: 10.3390/bios12121062] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/19/2022] [Accepted: 11/20/2022] [Indexed: 09/28/2023]
Abstract
Metallic dendrites, a class of three-dimensional nanostructured materials, have drawn a lot of interests in the recent years because of their interesting hierarchical structures and distinctive features. They are a hierarchical self-assembled array of primary, secondary, and terminal branches with a plethora of pointed ends, ridges, and edges. These features provide them with larger active surface areas. Due to their enormous active areas, the catalytic activity and conductivity of these nanostructures are higher as compared to other nanomaterials; therefore, they are increasingly used in the fabrication of sensors. This review begins with the properties and various synthetic approaches of nanodendrites. The primary goal of this review is to summarize various nanodendrites-engineered biosensors for monitoring of small molecules, macromolecules, metal ions, and cells in a wide variety of real matrices. Finally, to enlighten future research, the limitations and future potential of these newly discovered materials are discussed.
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Affiliation(s)
- Rohini Kumari
- Laboratory of Bio-Physio Sensors and Nanobioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Daphika S. Dkhar
- Laboratory of Bio-Physio Sensors and Nanobioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Supratim Mahapatra
- Laboratory of Bio-Physio Sensors and Nanobioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Divya
- Laboratory of Bio-Physio Sensors and Nanobioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Surinder P. Singh
- CSIR—National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pranjal Chandra
- Laboratory of Bio-Physio Sensors and Nanobioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
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8
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Hemmatpour P, Nezamzadeh-Ejhieh A. A Z-scheme CdS/BiVO 4 photocatalysis towards Eriochrome black T: An experimental design and mechanism study. CHEMOSPHERE 2022; 307:135925. [PMID: 35952786 DOI: 10.1016/j.chemosphere.2022.135925] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 07/24/2022] [Accepted: 07/31/2022] [Indexed: 06/15/2023]
Abstract
The synergistic photocatalytic activity was obtained when CdS and BiVO4 nanoparticles (NPs) were coupled. The samples were characterized by XRD, FTIR, SEM-EDX, and UV-DRS techniques, and their pHpzc was also estimated. The crystallite size of the coupled sample was estimated at 37.3 and 12.5 nm by the Scherrer and Williamson-Hall equations, respectively. The band gaps and the potential positions of VB and CB levels of the semiconductors used were determined. The highest boosted photocatalytic activity was obtained when the CdS: BiVO4 mole ratio was 1:1. RSM studied the simultaneous interactions between the selected variables, and the model F-value of 110.61> F0.05, 14, 13 = 2.4 accompanied by the LOF F-value of 5.20 < F0.05, 10, 3 = 8.79 confirm the model significance. The correlation coefficients of R2 = 0.9861, the adjusted R2 = 0.9710, and the predicted R2 = 0.9417, also establish a satisfactory model for processing the experimental data. In the scavenging agent study, photodegradation mechanisms were suggested; among them, the direct Z-scheme mechanism is more favorable for illustrating the EBT-photodegradation by the binary CdS-BiVO4 photocatalyst. The proposed system, especially the direct Z-scheme mechanism, is suitable as a potential hydrogen production system.
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Affiliation(s)
- Pooneh Hemmatpour
- Department of Chemistry, Shahreza Branch, Islamic Azad University, P. O. Box, 311-86145, Shahreza, Isfahan, Islamic Republic of Iran.
| | - Alireza Nezamzadeh-Ejhieh
- Department of Chemistry, Shahreza Branch, Islamic Azad University, P. O. Box, 311-86145, Shahreza, Isfahan, Islamic Republic of Iran.
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9
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Bhuvaneswari C, Palpandi K, Amritha B, Paunkumar P, Lakshmi Priya R, Raman N, Ganesh Babu S. Conniving for the first time of BiVO4 - rGO/CE-BN and its Potential as enhanced electrochemical sensing of non-steroidal anti-androgen drug. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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11
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Sriram B, Baby JN, Hsu YF, Wang SF, George M. In Situ Synthesis of a Bismuth Vanadate/Molybdenum Disulfide Composite: An Electrochemical Tool for 3-Nitro-l-Tyrosine Analysis. Inorg Chem 2022; 61:14046-14057. [PMID: 35998644 DOI: 10.1021/acs.inorgchem.2c02037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The quantification of 3-nitro-l-tyrosine (NO2-Tyr), an in vivo biomarker of nitrosative stress, is indispensable for the clinical intervention of various inflammatory disorders caused by nitrosative stress. By integrating the unique features of BiVO4 and MoS2 with matching bandgap energies, electrode materials with amplified response signals can be developed. In this regard, we introduce a hydrothermally synthesized bismuth vanadate sheathed molybdenum disulfide (MoS2@BiVO4) heterojunction as a highly sensitive electrode material for the determination of NO2-Tyr. Excellent electrochemical behavior perceived for the MoS2@BiVO4 augments the performance of the sensor and allows the measurement of NO2-Tyr in biological media without any time-consuming pretreatments. The synergistic interactions between BiVO4 and MoS2 heterojunctions contribute to low resistance charge transfer (Rct = 159.13 Ω·cm2), a reduction potential Epc = -0.58 V (vs Ag/AgCl), and a good response range (0.001-526.3 μM) with a lower limit of detection (0.94 nM) toward the detection of NO2-Tyr. An improved active surface area, reduced charge recombination, and high analyte adsorption contribute to the high loading of the biomarker for improved selectivity (in the presence of 10 interfering compounds), operational stability (1000 s), and reproducibility (six various modified electrodes). The proposed sensor was successfully utilized for the real-time determination of NO2-Tyr in water, urine, and saliva samples with good recovery values (±98.94-99.98%), ascertaining the reliability of the method. It is noteworthy that the electrochemical activity remains unaffected by other redox interferons, thus leading to targeted sensing applications.
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Affiliation(s)
- Balasubramanian Sriram
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Jeena N Baby
- Department of Chemistry, Stella Maris College, Affiliated to the University of Madras, Chennai, Tamil Nadu 600086, India.,Department of Chemistry, St. Mary's College, Sulthan Bathery, Wayanad, Kerala 673592, India
| | - Yung-Fu Hsu
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Mary George
- Department of Chemistry, Stella Maris College, Affiliated to the University of Madras, Chennai, Tamil Nadu 600086, India
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12
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Recent Progress in Non-Enzymatic Electroanalytical Detection of Pesticides Based on the Use of Functional Nanomaterials as Electrode Modifiers. BIOSENSORS 2022; 12:bios12050263. [PMID: 35624564 PMCID: PMC9139166 DOI: 10.3390/bios12050263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/09/2022] [Accepted: 04/14/2022] [Indexed: 12/29/2022]
Abstract
This review presents recent advances in the non-enzymatic electrochemical detection and quantification of pesticides, focusing on the use of nanomaterial-based electrode modifiers and their corresponding analytical response. The use of bare glassy carbon electrodes, carbon paste electrodes, screen-printed electrodes, and other electrodes in this research area is presented. The sensors were modified with single nanomaterials, a binary composite, or triple and multiple nanocomposites applied to the electrodes’ surfaces using various application techniques. Regardless of the type of electrode used and the class of pesticides analysed, carbon-based nanomaterials, metal, and metal oxide nanoparticles are investigated mainly for electrochemical analysis because they have a high surface-to-volume ratio and, thus, a large effective area, high conductivity, and (electro)-chemical stability. This work demonstrates the progress made in recent years in the non-enzymatic electrochemical analysis of pesticides. The need for simultaneous detection of multiple pesticides with high sensitivity, low limit of detection, high precision, and high accuracy remains a challenge in analytical chemistry.
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13
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Bölükbaşı ÖS, Yola BB, Boyacıoğlu H, Yola ML. A novel paraoxon imprinted electrochemical sensor based on MoS 2NPs@MWCNTs and its application to tap water samples. Food Chem Toxicol 2022; 163:112994. [PMID: 35398444 DOI: 10.1016/j.fct.2022.112994] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 03/22/2022] [Accepted: 04/04/2022] [Indexed: 02/07/2023]
Abstract
Organophosphorus pesticides are widely utilized in agricultural fertility. However, their long-term accumulations result in serious damage to human health and ecological balance. Paraoxon (PAR) can block acetylcholinesterase in the human body, resulting in death. Thus, in this study, a molecularly imprinted electrochemical PAR sensor based on multiwalled carbon nanotubes (MWCNTs)/molybdenum disulfide nanoparticles (MoS2NPs) nanocomposite (MoS2NPs@MWCNTs) was proposed for selective tap water determination. A hydrothermal fabrication approach was firstly implemented to prepare MoS2NPs@MWCNTs nanocomposite. Afterwards, the formation of PAR imprinted electrochemical electrode was performed on nanocomposite modified glassy carbon electrode (GCE) in presence of PAR as template and pyrrole (Py) as a monomer by cyclic voltammetry (CV) technique. Just after determining the physicochemical features of as-fabricated nanostructures by scanning electron microscopy (SEM), transmission electron microscopy (TEM), x-ray diffraction (XRD), Raman spectroscopy, and atomic force microscopy (AFM), the electrochemical behavior of the fabricated sensors was determined through CV, differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS). The suggested imprinted electrode provided the acceptable limit of quantification (LOQ) and limit of detection (LOD) values of 1.0 × 10-11 M, and 2.0 × 10-12 M, respectively. As a consequence, the proposed PAR imprinted electrochemical sensor can be offered for the determining safe tap water and its utility.
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Affiliation(s)
- Ömer Saltuk Bölükbaşı
- Iskenderun Technical University, Faculty of Engineering and Natural Sciences, Department of Metallurgical and Materials Engineering, Hatay, Turkey
| | - Bahar Bankoğlu Yola
- Iskenderun Technical University, Science and Technology Application and Research Laboratory, Hatay, Turkey
| | - Havva Boyacıoğlu
- Pamukkale University, Faculty of Engineering, Department of Chemical Engineering, Denizli, Turkey
| | - Mehmet Lütfi Yola
- Hasan Kalyoncu University, Faculty of Health Sciences, Department of Nutrition and Dietetics, Gaziantep, Turkey.
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14
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Highly sensitive electrochemical detection of paraoxon ethyl in water and fruit samples based on defect-engineered graphene nanoribbons modified electrode. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01366-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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15
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Magnetic Molecularly Imprinted Polymer (MMIP) Mediated Bacterial Esterase-Based Assay for Captan Detection in Milk. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-021-02221-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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