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Mousavi SM, Nezhad FF, Ghahramani Y, Binazadeh M, Javidi Z, Azhdari R, Gholami A, Omidifar N, Rahman MM, Chiang WH. Recent Advances in Bioactive Carbon Nanotubes Based on Polymer Composites for Biosensor Applications. Chem Biodivers 2024:e202301288. [PMID: 38697942 DOI: 10.1002/cbdv.202301288] [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: 08/24/2023] [Revised: 04/21/2024] [Accepted: 05/02/2024] [Indexed: 05/05/2024]
Abstract
Recent breakthroughs in the field of carbon nanotubes (CNTs) have opened up unprecedented opportunities for the development of specialized bioactive CNT-polymers for a variety of biosensor applications. The incorporation of bioactive materials, including DNA, aptamers and antibodies, into CNTs to produce composites of bioactive CNTs has attracted considerable attention. In addition, polymers are essential for the development of biosensors as they provide biocompatible conditions and are the ideal matrix for the immobilization of proteins. The numerous applications of bioactive compounds combined with the excellent chemical and physical properties of CNTs have led to the development of bioactive CNT-polymer composites. This article provides a comprehensive overview of CNT-polymer composites and new approaches to encapsulate bioactive compounds and polymers in CNTs. Finally, biosensor applications of bioactive CNT-polymer for the detection of glucose, H2O2 and cholesterol were investigated. The surface of CNT-polymer facilitates the immobilization of bioactive molecules such as DNA, enzymes or antibodies, which in turn enables the construction of state-of-the-art, future-oriented biosensors.
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Affiliation(s)
- Seyyed Mojtaba Mousavi
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | | | - Yasamin Ghahramani
- Department of Endodontics, Dental School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mojtaba Binazadeh
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Mollasadra Street, 71345, Shiraz, Fars, Iran
| | - Zahra Javidi
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Rouhollah Azhdari
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Gholami
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Navid Omidifar
- Department of Pathology, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
| | - Mohammed M Rahman
- Center of Excellence for Advanced Materials Research (CEAMR) & Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
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Neto DMA, da Costa LS, Sousa CP, Becker H, Casciano PN, Nascimento HO, Neto JRB, de Lima-Neto P, Nascimento RF, Guedes JA, de Oliveira RC, Zampieri D, Correia AN, Fechine PB. Functionalized Fe3O4 nanoparticles for electrochemical sensing of carbendazim. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Acetylcholinesterase Biosensor Based on Functionalized Renewable Carbon Platform for Detection of Carbaryl in Food. BIOSENSORS 2022; 12:bios12070486. [PMID: 35884288 PMCID: PMC9313315 DOI: 10.3390/bios12070486] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/30/2022] [Accepted: 06/30/2022] [Indexed: 01/05/2023]
Abstract
Enzymatic electrochemical biosensors play an important role in the agri-food sector due to the need to develop sustainable, low-cost, and easy-to-use analytical devices. Such biosensors can be used to monitor pathogens, endocrine disruptors, and pesticides, such as carbaryl, widely used in many crops. The use of renewable carbon (RC) sources, provided from biomass pyrolysis has been often applied in the fabrication of such sensors. This material is a great candidate for biosensor fabrication due to the presence of surface functional groups, porosity, and moderate surface area. This work describes the functionalization of RC material through an acid treatment with a sulfonitric solution HNO3/H2SO4 (1:3) and the resulting material was characterized by scanning electron microscopy. The obtained RC functionalized (RCF) and the acetylcholinesterase enzyme (AChE) were applied in the construction of the electrochemical biosensor on glassy carbon (GC) electrode and used to detect carbaryl in apple samples. The GC/RCF/AChE biosensor was able to detect the carbaryl pesticide from 5.0 to 30.0 nmol L−1, displaying a LOD of 4.5 nmol L−1. The detection of carbaryl in apple samples presented recoveries between 102.5 to 118.6% through the standard addition method. The proposed biosensor is a promising renewable tool for food safety.
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Jemai R, Djebbi MA, Hussain N, Yang B, Hirtz M, Trouillet V, Ben Rhaiem H, Ben Haj Amara A. Activated Porous Carbon Supported Pd and ZnO Nanocatalysts for Trace Sensing of Carbaryl Pesticide in Water and Food Products. NEW J CHEM 2022. [DOI: 10.1039/d2nj01844f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanomaterials-based sensors are a dire need for credible and accurate determination of pesticides in water and food samples as a monitoring tool. Herein, electrocatalysts of Pd and ZnO NPs supported...
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Shao Y, Dong Y, Bin L, Fan L, Wang L, Yuan X, Li D, Liu X, Zhao S. Application of gold nanoparticles/polyaniline-multi-walled carbon nanotubes modified screen-printed carbon electrode for electrochemical sensing of zinc, lead, and copper. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106726] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Santos JS, Pontes MS, Santiago EF, Fiorucci AR, Arruda GJ. An efficient and simple method using a graphite oxide electrochemical sensor for the determination of glyphosate in environmental samples. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 749:142385. [PMID: 33370922 DOI: 10.1016/j.scitotenv.2020.142385] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 06/12/2023]
Abstract
Excessive and indiscriminate use of the herbicide glyphosate (GLY) leaves the environment susceptible to its contamination. This work describes the development of a simple, inexpensive, and efficient electroanalytical method using graphite oxide paste electrode (GrO-PE) for the direct determination of GLY traces in groundwater samples, soybean extracts, and lettuce extracts. Under optimal experimental conditions, the developed sensor exhibited a linear response of the peak current intensity vs. the concentration, in the range of 1.8 × 10-5 to 1.2 × 10-3 mol L-1 for GLY. The limits of detection and quantification are 1.7 × 10-8 mol L-1 and 5.6 × 10-8 mol L-1, respectively. The methodology developed here demonstrated a strong analytical performance, with high reproducibility, repeatability, and precision. Moreover, it successfully avoided interference from other substances, showing high selectivity. The GrO-PE sensor was effectively applied to determine GLY traces in real samples with recovery rates ranging from 98% to 102%. Results showed that the GrO-PE is effective and useful for GLY detection, with the advantage of not involving laborious modifications and complicated handling, making it a promising tool for environmental analysis.
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Affiliation(s)
- Jaqueline S Santos
- Department of Plant Resources, Natural Resources Program (PGRN), Mato Grosso do Sul State University (UEMS), P.O. Box 351, Dourados, MS 7984-970, Brazil; Department of Analytical Chemistry, Natural Resources Program (PGRN), Mato Grosso do Sul State University (UEMS), P.O. Box 351, Dourados, MS 7984-970, Brazil
| | - Montcharles S Pontes
- Department of Plant Resources, Natural Resources Program (PGRN), Mato Grosso do Sul State University (UEMS), P.O. Box 351, Dourados, MS 7984-970, Brazil
| | - Etenaldo F Santiago
- Department of Plant Resources, Natural Resources Program (PGRN), Mato Grosso do Sul State University (UEMS), P.O. Box 351, Dourados, MS 7984-970, Brazil
| | - Antonio R Fiorucci
- Department of Analytical Chemistry, Natural Resources Program (PGRN), Mato Grosso do Sul State University (UEMS), P.O. Box 351, Dourados, MS 7984-970, Brazil
| | - Gilberto J Arruda
- Department of Analytical Chemistry, Natural Resources Program (PGRN), Mato Grosso do Sul State University (UEMS), P.O. Box 351, Dourados, MS 7984-970, Brazil.
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Luong JHT, Narayan T, Solanki S, Malhotra BD. Recent Advances of Conducting Polymers and Their Composites for Electrochemical Biosensing Applications. J Funct Biomater 2020; 11:E71. [PMID: 32992861 PMCID: PMC7712382 DOI: 10.3390/jfb11040071] [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: 08/31/2020] [Revised: 09/17/2020] [Accepted: 09/20/2020] [Indexed: 02/01/2023] Open
Abstract
Conducting polymers (CPs) have been at the center of research owing to their metal-like electrochemical properties and polymer-like dispersion nature. CPs and their composites serve as ideal functional materials for diversified biomedical applications like drug delivery, tissue engineering, and diagnostics. There have also been numerous biosensing platforms based on polyaniline (PANI), polypyrrole (PPY), polythiophene (PTP), and their composites. Based on their unique properties and extensive use in biosensing matrices, updated information on novel CPs and their role is appealing. This review focuses on the properties and performance of biosensing matrices based on CPs reported in the last three years. The salient features of CPs like PANI, PPY, PTP, and their composites with nanoparticles, carbon materials, etc. are outlined along with respective examples. A description of mediator conjugated biosensor designs and enzymeless CPs based glucose sensing has also been included. The future research trends with required improvements to improve the analytical performance of CP-biosensing devices have also been addressed.
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Affiliation(s)
- John H. T. Luong
- School of Chemistry and the Analytical and Biological Chemistry Research Facility (ABCRF), University College Cork, College Road, T12 YN60 Cork, Ireland
| | - Tarun Narayan
- Department of Biotechnology, Delhi Technological University, Delhi 110042, India; (T.N.); (S.S.); (B.D.M.)
| | - Shipra Solanki
- Department of Biotechnology, Delhi Technological University, Delhi 110042, India; (T.N.); (S.S.); (B.D.M.)
- Applied Chemistry Department, Delhi Technological University, Delhi 110042, India
| | - Bansi D. Malhotra
- Department of Biotechnology, Delhi Technological University, Delhi 110042, India; (T.N.); (S.S.); (B.D.M.)
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Chhabra VA, Kaur R, Walia MS, Kim KH, Deep A. PANI/PbS QD nanocomposite structure for visible light driven photocatalytic degradation of rhodamine 6G. ENVIRONMENTAL RESEARCH 2020; 186:109615. [PMID: 32668555 DOI: 10.1016/j.envres.2020.109615] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Among conducting polymers, polyaniline (PANI) is one of the most widely used materials due to its unique properties (e.g., high electrical conductivity, outstanding electrochemical properties, easy polymerization, high stability, and low-cost synthesis). In this study, we report the synthesis of a composite of polyaniline with lead sulfide quantum dots (PbS QDs), which was subsequently employed for photocatalysis of a dye, rhodamine 6G (Rh-6G). This PANI/PbS composite was prepared by employing the chemical oxidative polymerization of aniline monomer in the presence of PbS QDs. The composite has been characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, and ultraviolet-visible spectroscopy. The composite formation turned out to be beneficial not only for the dispersion of PbS QDs but also for increasing the conductivity of the whole catalyst. They exhibited ~87% degradation of the dye content for 50 min. The kinetic rate for its destruction is 5.03 mmol g-1 h-1 with the quantum efficiency (QE) of 7.98E-06 molec/photon. Due to enhanced charge transfer characteristics, the PANI/PbS photocatalyst was capable of efficiently degrading the dye molecules across varying concentrations. The electron-hole pair generated after the visible light irradiation on the PANI/PbS composite led to an efficient oxidative degradation of Rh 6G.
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Affiliation(s)
- Varun A Chhabra
- Centre for Development of Advanced Computing (C-DAC), Phase VIII, Mohali, 160071, India
| | - Rajnish Kaur
- Department of Physics, Panjab University, Sector 14, Chandigarh, 160014, India
| | - Manrajvir S Walia
- Central Scientific Instruments Organization (CSIR-CSIO), Sector 30 C, Chandigarh, 160030, India
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea.
| | - Akash Deep
- Central Scientific Instruments Organization (CSIR-CSIO), Sector 30 C, Chandigarh, 160030, India
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Nagabooshanam S, John AT, Wadhwa S, Mathur A, Krishnamurthy S, Bharadwaj LM. Electro-deposited nano-webbed structures based on polyaniline/multi walled carbon nanotubes for enzymatic detection of organophosphates. Food Chem 2020; 323:126784. [PMID: 32315946 DOI: 10.1016/j.foodchem.2020.126784] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 03/04/2020] [Accepted: 04/09/2020] [Indexed: 11/17/2022]
Abstract
We report the development of an ultrasensitive electrochemical sensor using polyaniline (PANi) and carboxyl functionalized multi-walled carbon nanotubes (fMWCNT) for the detection of organophosphates (OPs) in real samples. The sensor was tested in the linear concentration range of 10 ng/L to 120 ng/L. The limit of detection (LoD) was found to be 8.8 ng/L with sensitivity 0.41 mA/ng/L/cm2 for chlorpyrifos (CPF); and 10.2 ng/L with sensitivity 0.58 mA/ng/L/cm2 for methyl parathion (MP). The vegetable samples (cucumber) were also tested. The average % recovery for CPF and MP were found to be 98.05% and 96.63% respectively. The developed sensor showed stability for a period of 30 days. The interference of the sensor was studied with heavy metals (cadmium (Cd), chromium (Cr), lead (Pb), arsenic (As)) which was found to be < 10%. The developed sensor will play a major role in real-time monitoring of food products, leading to food safety.
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Affiliation(s)
- Shalini Nagabooshanam
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201301, UP, United Kingdom
| | - Alishba T John
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201301, UP, United Kingdom
| | - Shikha Wadhwa
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201301, UP, United Kingdom
| | - Ashish Mathur
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201301, UP, United Kingdom.
| | - Satheesh Krishnamurthy
- Nanoscale Energy and Surface Engineering, School of Engineering and Innovation, The Open University, Milton Keynes, MK 76AA, United Kingdom
| | - Lalit M Bharadwaj
- Amity Institute of Nanotechnology, Amity University, Sector-125, Noida 201301, UP, United Kingdom
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Alves TS, Santos JS, Fiorucci AR, Arruda GJ. A new simple electrochemical method for the determination of Bisphenol A using bentonite as modifier. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110048. [PMID: 31546367 DOI: 10.1016/j.msec.2019.110048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 07/13/2019] [Accepted: 07/26/2019] [Indexed: 12/14/2022]
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Prajapati DG, Kandasubramanian B. Progress in the Development of Intrinsically Conducting Polymer Composites as Biosensors. MACROMOL CHEM PHYS 2019; 220:1800561. [PMID: 32327916 PMCID: PMC7168478 DOI: 10.1002/macp.201800561] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/25/2019] [Indexed: 12/22/2022]
Abstract
Biosensors are analytical devices which find extensive applications in fields such as the food industry, defense sector, environmental monitoring, and in clinical diagnosis. Similarly, intrinsically conducting polymers (ICPs) and their composites have lured immense interest in bio-sensing due to their various attributes like compatibility with biological molecules, efficient electron transfer upon biochemical reactions, loading of bio-reagent, and immobilization of biomolecules. Further, they are proficient in sensing diverse biological species and compounds like glucose (detection limit ≈0.18 nm), DNA (≈10 pm), cholesterol (≈1 µm), aptamer (≈0.8 pm), and also cancer cells (≈5 pm mL-1) making them a potential candidate for biological sensing functions. ICPs and their composites have been extensively exploited by researchers in the field of biosensors owing to these peculiarities; however, no consolidated literature on the usage of conducting polymer composites for biosensing functions is available. This review extensively elucidates on ICP composites and doped conjugated polymers for biosensing functions of copious biological species. In addition, a brief overview is provided on various forms of biosensors, their sensing mechanisms, and various methods of immobilizing biological species along with the life cycle assessment of biosensors for various biosensing applications, and their cost analysis.
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Affiliation(s)
- Deepak G. Prajapati
- Nano Texturing LaboratoryDepartment of Metallurgical and Materials EngineeringDefence Institute of Advanced TechnologyMinistry of DefenceGirinagarPune411025India
| | - Balasubramanian Kandasubramanian
- Nano Texturing LaboratoryDepartment of Metallurgical and Materials EngineeringDefence Institute of Advanced TechnologyMinistry of DefenceGirinagarPune411025India
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Masibi KK, Fayemi OE, Adekunle AS, Sherif ESM, Ebenso EE. Electrocatalysis of Lindane Using Antimony Oxide Nanoparticles Based-SWCNT/PANI Nanocomposites. Front Chem 2018; 6:423. [PMID: 30298128 PMCID: PMC6160894 DOI: 10.3389/fchem.2018.00423] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 08/24/2018] [Indexed: 11/24/2022] Open
Abstract
This work describes the chemical synthesis of antimony oxide nanoparticles (AONPs), polyaniline (PANI), acid functionalized single-walled carbon nanotubes (fSWCNTs), and the nanocomposite (AONP-PANI-SWCNT) as catalyst for the trace detection of lindane. Successful synthesis of the nanomaterials was confirmed by Fourier transform infrared (FT-IR) spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, x-ray diffraction (XRD) spectroscopy, and scanning electron microscopy (SEM). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used for investigating the electrochemical behavior of the modified electrodes in the ferrocyanide/ferricyanide ([Fe(CN)6]4−/[Fe(CN)6]3−) redox probe. GCE-AONP-PANI-SWCNT exhibited faster electron transport properties as well as higher electroactivity as compared to bare-GCE, GCE-AONPs, GCE-PANI, and GCE-SWCNT electrodes. Electrocatalytic studies further showed that GCE-AONP-PANI-SWCNT modified electrode was stable (after 20 scans) with only a small current drop in lindane (0.57%). The GCE-AONP-PANI-SWCNT electrode with low detection limit of 2.01 nM performed better toward the detection of lindane as compared to other studies in literature. The GCE-AONP-PANI-SWCNT electrode is highly selective toward the detection of lindane in the presence of various organic and inorganic interfering species. Real sample analysis of river water and tap water samples using the developed sensor gave satisfactory percentage recoveries therefore confirming the potential of the proposed sensor for practical application.
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Affiliation(s)
- Kgotla K Masibi
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa.,Material Science Innovation and Modelling Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa
| | - Omolola E Fayemi
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa.,Material Science Innovation and Modelling Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa
| | - Abolanle S Adekunle
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa.,Material Science Innovation and Modelling Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa.,Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - El-Sayed M Sherif
- Center of Excellence for Research in Engineering Materials, King Saud University, Al-Riyadh, Saudi Arabia.,Electrochemistry and Corrosion Laboratory, Department of Physical Chemistry, National Research Centre, Cairo, Egypt
| | - Eno E Ebenso
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa.,Material Science Innovation and Modelling Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa
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Zhao F, Wu J, Ying Y, She Y, Wang J, Ping J. Carbon nanomaterial-enabled pesticide biosensors: Design strategy, biosensing mechanism, and practical application. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.06.017] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Maximiano EM, de Lima F, Cardoso CA, Arruda GJ. Modification of carbon paste electrodes with recrystallized zeolite for simultaneous quantification of thiram and carbendazim in food samples and an agricultural formulation. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.10.162] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Selva TMG, Paixão TRLCD. Boron-doped diamond as a sensor for the classification of carbamate pesticides using a chemometric approach. NEW J CHEM 2016. [DOI: 10.1039/c5nj03524d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Electrochemical sensor for the classification of carbamate pesticides.
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Cesarino I, Galesco HV, Machado SA. Determination of serotonin on platinum electrode modified with carbon nanotubes/polypyrrole/silver nanoparticles nanohybrid. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 40:49-54. [DOI: 10.1016/j.msec.2014.03.030] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 02/17/2014] [Accepted: 03/17/2014] [Indexed: 11/30/2022]
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Cesarino I, Galesco HV, Moraes FC, Lanza MRV, Machado SAS. Biosensor Based on Electrocodeposition of Carbon Nanotubes/Polypyrrole/Laccase for Neurotransmitter Detection. ELECTROANAL 2012. [DOI: 10.1002/elan.201200542] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Carbon nanotubes modified with antimony nanoparticles: A novel material for electrochemical sensing. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.08.123] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Moraes FC, Lima RS, Segato TP, Cesarino I, Cetino JLM, Machado SAS, Gomez F, Carrilho E. Glass/PDMS hybrid microfluidic device integrating vertically aligned SWCNTs to ultrasensitive electrochemical determinations. LAB ON A CHIP 2012; 12:1959-1962. [PMID: 22562183 DOI: 10.1039/c2lc40141j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This communication reports a promising platform for rapid, simple, direct, and ultrasensitive determination of serotonin. The method is related to integration of vertically aligned single-walled carbon nanotubes (SWCNTs) in electrochemical microfluidic devices. The required microfabrication protocol is simple and fast. In addition, the nanomaterial influenced remarkably the obtained limit-of-detection (LOD) values. Our system achieved a LOD of 0.2 nmol L(-1) for serotonin, to the best of our knowledge one of the lowest values reported in the literature.
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Affiliation(s)
- Fernando Cruz Moraes
- Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos, Brazil
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