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Adane WD, Chandravanshi BS, Tessema M. Hypersensitive electrochemical sensor based on thermally annealed gold-silver alloy nanoporous matrices for the simultaneous determination of sulfathiazole and sulfamethoxazole residues in food samples. Food Chem 2024; 457:140071. [PMID: 38905827 DOI: 10.1016/j.foodchem.2024.140071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 05/26/2024] [Accepted: 06/09/2024] [Indexed: 06/23/2024]
Abstract
In this study, we have developed a novel, hypersensitive, and ultraselective electrochemical sensor containing thermally annealed gold-silver alloy nanoporous matrices (TA-Au-Ag-ANpM) integrated with f-MWCNTs-CPE and poly(l-serine) nanocomposites for the simultaneous detection of sulfathiazole (SFT) and sulfamethoxazole (SFM) residues in honey, beef, and egg samples. TA-Au-Ag-ANpM/f-MWCNTs-CPE/poly(l-serine) was characterized using an extensive array of analytical (UV-Vis, FT-IR, XRD, SEM, and EDX), and electrochemical (EIS, CV and SWV) techniques. It exhibited outstanding performance over a wide linear range, from 4.0 pM to 490 μM for SFT and 4.0 pM to 520 μM for SFM, with picomolar detection and quantification limits (0.53 pM and 1.75 pM for SFT, 0.41 pM and 1.35 pM for SFM, respectively). The sensor demonstrated exceptional repeatability, reproducibility, and anti-interference capability, with percentage recovery of 95.6-102.4% in food samples and RSD below 5%. Therefore, the developed sensor is an ideal tool to address the current antibiotic residue crisis in food sources.
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Affiliation(s)
| | | | - Merid Tessema
- Department of Chemistry, Addis Ababa University, P. O. Box, 1176, Addis Ababa, Ethiopia.
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2
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Djonse Justin BT, Blaise N, Valery HG. Investigation of the photoactivation effect of TiO 2 onto carbon-clay paste electrode by cyclic voltammetry analysis. Heliyon 2023; 9:e13474. [PMID: 36846689 PMCID: PMC9947266 DOI: 10.1016/j.heliyon.2023.e13474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
In this work, a cyclic voltammetry analysis for the detection of Ascorbic Acid (AA) based on a carbon-clay paste electrode modified with titanium dioxide (CPEA/TiO2) is presented. The electrochemical sensor was prepared using clay and carbon graphite, mixed with TiO2 to investigate the electrode behavior towards the detection of AA. Comprehensive characterization approaches including X-ray diffraction (XRD), Selected area electron diffraction (SAED), Transmission electron microscopy (TEM), Fourier transform infra-red spectroscopy (FTIR) were carried out on different samples. The results indicated that, the electrode has been effectively modified, while the electrochemical parameters of AA on CPEA/TiO2/UV such as the charge transfer coefficient (α a ), number of electrons (n) transferred and standard potential were calculated. CPEA/TiO2/UV exhibit better photoactivity and also higher electronic conductivity under light radiation (100 W). The linear range for AA was determined between 0.150μM and 0.850 μM with the straight-line equation equivalent to I p a ( μ A ) = 2.244 [ A A ] + 1.234 (n = 8, R2 = 0.993). The limit of detection was 0.732 μM (3σ) and limit of quantification was 2.440 μM. For the analytical applications, pharmaceutical tablets such as Chloroquine phosphate, Azithromycin and Hydroxychloroquine sulfate were performed. In addition, interference study in the analytical application was performed, and it was found that the electroanalytical method used can be well adopted for simultaneous electrochemical detection of AA and Azithromycin.
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Affiliation(s)
| | - Niraka Blaise
- Department of Textile and Leather Engineering, National Advanced School of Engineering of Maroua, P.O. Box 46, Maroua, Cameroon
| | - Hambate Gomdje Valery
- Department of Textile and Leather Engineering, National Advanced School of Engineering of Maroua, P.O. Box 46, Maroua, Cameroon,Corresponding author.
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You Z, Zhang Y, Duan S, Liu L. Electrochemical Detection of Olivetol Based on Poly(L-Serine) Film Layered Copper Oxide Modified Carbon Paste Electrode (p-L-Serine/CuO/CPE). NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:70. [PMID: 36615980 PMCID: PMC9824513 DOI: 10.3390/nano13010070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/20/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Olivetol is an important polyphenol compound and intermediate in the synthesis of cannabinoids possessing many types of biological activities. A facile electrochemical sensor for olivetol was fabricated based on p-L-serine, and copper oxide (CuO) nanoparticles modified carbon paste electrode (p-L-serine/CuO/CPE). The proposed p-L-serine/CuO/CPE was applied to the electrochemical detection of olivetol by cyclic voltammetry (CV) and differential pulse voltammetric (DPV). Through the characterizations of materials and modified electrodes, the p-L-serine/CuO/CPE exhibited enhanced electrochemical signals for olivetol compared to bare CPE and CuO/CPE in both CV and DPV methods. Under the optimized conditions, the proposed p-L-serine/CuO/CPE showed a good quantitative analysis ability and a wide analysis range from 20 to 100 μmol L-1 of olivetol with a limit of detection of 1.04 μmol L-1. Based on the reproducibility, repeatability, and stability exhibited by this fabricated sensor and the cheap and accessible raw materials, the p-L-serine/CuO/CPE became a novel determination choice for olivetol in the electrochemical method with the advantages of being cost-effective and convenient.
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Affiliation(s)
| | | | - Shengwen Duan
- Correspondence: (S.D.); (L.L.); Tel.: +86-731-88998516 (S.D.); +86-731-88998525 (L.L.)
| | - Liangliang Liu
- Correspondence: (S.D.); (L.L.); Tel.: +86-731-88998516 (S.D.); +86-731-88998525 (L.L.)
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A glassy carbon electrode modulated with Poly (Naphthol green B) for simultaneous electroanalysis of serotonin and Epinephrine in presence of l-tryptophan. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110013] [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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5
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Palakollu VN, Chen D, Tang JN, Wang L, Liu C. Recent advancements in metal-organic frameworks composites based electrochemical (bio)sensors. Mikrochim Acta 2022; 189:161. [PMID: 35344127 DOI: 10.1007/s00604-022-05238-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 02/19/2022] [Indexed: 12/28/2022]
Abstract
Metal-organic frameworks (MOFs) are a novel class of crystalline materials which find widespread applications in the field of microporous conductors, catalysis, separation, biomedical engineering, and electrochemical sensing. With a specific emphasis on the MOF composites for electrochemical sensor applications, this review summarizes the recent construction strategies on the development of conductive MOF composites (post-synthetic modification of MOFs, in situ synthesis of functional materials@MOFs composites, and incorporating electroactive ligands). The developed composites are revealed to have excellent electrochemical sensing activity better than their pristine forms. Notably, the applicable functionalized MOFs to electrochemical sensing/biosensing of various target species are discussed. Finally, we highlight the perspectives and challenges in the field of electrochemical sensors and biosensors for potential directions of future development.
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Affiliation(s)
- Venkata Narayana Palakollu
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, 3688 Nanhai Ave, Shenzhen, 518060, People's Republic of China
| | - Dazhu Chen
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Jiao-Ning Tang
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Lei Wang
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Chen Liu
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.
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Ganesh PS, Kim SY, Choi DS, Kaya S, Serdaroğlu G, Shimoga G, Shin EJ, Lee SH. Electrochemical investigations and theoretical studies of biocompatible niacin-modified carbon paste electrode interface for electrochemical sensing of folic acid. J Anal Sci Technol 2021. [DOI: 10.1186/s40543-021-00301-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
AbstractThe modified electrode–analyte interaction is critical in establishing the sensing mechanism and in developing an electrochemical sensor. Here, the niacin-modified carbon paste electrode (NC/CPE) was fabricated for electrochemical sensing applications. The two stable structures of the niacin were optimized and confirmed by the absence of negative vibrational frequency, at B3LYP and B3LYP-GD3BJ level and 6–311 g** basis set. The physical and quantum chemical quantities were used to explain the molecular stability and electronic structure-related properties of the niacin. The natural bond orbital (NBO) analysis was performed to disclose the donor–acceptor interactions that were a critical role in explaining the modifier–analyte interaction. The fabricated NC/CPE was used for the determination of folic acid (FA) in physiological pH by cyclic voltammetry (CV) method. The limit of detection (LOD) for FA at NC/CPE was calculated to be 0.09 µM in the linear concentration range of 5.0 µM to 45.0 µM (0.2 M PBS, pH 7.4) by CV technique. The analytical applicability of the NC/CPE was evaluated in real samples, such as fruit juice and pharmaceutical sample, and the obtained results were acceptable. The HOMO and LUMO densities are used to identify the nucleophilic and electrophilic regions of niacin. The use of density functional theory-based quantum chemical simulations to understand the sensory performance of the modifier has laid a new foundation for fabricating electrochemical sensing platforms.
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Kordasht HK, Hasanzadeh M, Seidi F, Alizadeh PM. Poly (amino acids) towards sensing: Recent progress and challenges. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116279] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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8
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Quantum Chemical Studies and Electrochemical Investigations of Polymerized Brilliant Blue-Modified Carbon Paste Electrode for In Vitro Sensing of Pharmaceutical Samples. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9060135] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
To develop an electrochemical sensor for electroactive molecules, the choice and prediction of redox reactive sites of the modifier play a critical role in establishing the sensing mediating mechanism. Therefore, to understand the mediating mechanism of the modifier, we used advanced density functional theory (DFT)-based quantum chemical modeling. A carbon paste electrode (CPE) was modified with electropolymerization of brilliant blue, later employed for the detection of paracetamol (PA) and folic acid (FA). PA is an analgesic, anti-inflammatory and antipyretic prescription commonly used in medical fields, and overdose or prolonged use may harm the liver and kidney. The deficiency of FA associated with neural tube defects (NTDs) and therefore the quantification of FA are very essential to prevent the problems associated with congenital deformities of the spinal column, skull and brain of the fetus in pregnant women. Hence, an electrochemical sensor based on a polymerized brilliant blue-modified carbon paste working electrode (BRB/CPE) was fabricated for the quantification of PA and FA in physiological pH. The real analytical applicability of the proposed sensor was judged by employing it in analysis of a pharmaceutical sample, and good recovery results were obtained. The potential excipients do not have a significant contribution to the electro-oxidation of PA at BRB/CPE, which makes it a promising electrochemical sensing platform. The real analytical applicability of the proposed method is valid for pharmaceutical analysis in the presence of possible excipients. The prediction of redox reactive sites of the modifier by advanced quantum chemical modeling-based DFT may lay a new foundation for researchers to establish the modifier–analyte interaction mechanisms.
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da Silva LV, dos Santos ND, de Almeida AK, dos Santos DDE, Santos ACF, França MC, Lima DJP, Lima PR, Goulart MO. A new electrochemical sensor based on oxidized capsaicin/multi-walled carbon nanotubes/glassy carbon electrode for the quantification of dopamine, epinephrine, and xanthurenic, ascorbic and uric acids. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114919] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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10
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Elugoke SE, Adekunle AS, Fayemi OE, Mamba BB, Nkambule TT, Sherif EM, Ebenso EE. Progress in electrochemical detection of neurotransmitters using carbon nanotubes/nanocomposite based materials: A chronological review. NANO SELECT 2020. [DOI: 10.1002/nano.202000082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Saheed E. Elugoke
- Material Science Innovation and Modelling (MaSIM) Research Focus Area Faculty of Natural and Agricultural Sciences North‐West University (Mafikeng Campus) Mmabatho South Africa
- Department of Chemistry School of Physical and Chemical Sciences Faculty of Natural and Agricultural Sciences North‐West University (Mafikeng Campus) Mmabatho South Africa
| | - Abolanle S. Adekunle
- Material Science Innovation and Modelling (MaSIM) Research Focus Area Faculty of Natural and Agricultural Sciences North‐West University (Mafikeng Campus) Mmabatho South Africa
- Department of Chemistry School of Physical and Chemical Sciences Faculty of Natural and Agricultural Sciences North‐West University (Mafikeng Campus) Mmabatho South Africa
- Department of Chemistry Obafemi Awolowo University PMB Ile‐Ife Nigeria
| | - Omolola E. Fayemi
- Material Science Innovation and Modelling (MaSIM) Research Focus Area Faculty of Natural and Agricultural Sciences North‐West University (Mafikeng Campus) Mmabatho South Africa
- Department of Chemistry School of Physical and Chemical Sciences Faculty of Natural and Agricultural Sciences North‐West University (Mafikeng Campus) Mmabatho South Africa
| | - Bhekie B. Mamba
- Nanotechnology and Water Sustainability Research Unit College of Science Engineering and Technology University of South Africa Johannesburg South Africa
| | - Thabo T.I. Nkambule
- Nanotechnology and Water Sustainability Research Unit College of Science Engineering and Technology University of South Africa Johannesburg South Africa
| | - El‐Sayed M. Sherif
- Center of Excellence for Research in Engineering Materials (CEREM) King Saud University Al‐Riyadh Saudi Arabia
- Electrochemistry and Corrosion Laboratory Department of Physical Chemistry National Research Centre Dokki Cairo Egypt
| | - Eno E. Ebenso
- Material Science Innovation and Modelling (MaSIM) Research Focus Area Faculty of Natural and Agricultural Sciences North‐West University (Mafikeng Campus) Mmabatho South Africa
- Department of Chemistry School of Physical and Chemical Sciences Faculty of Natural and Agricultural Sciences North‐West University (Mafikeng Campus) Mmabatho South Africa
- Nanotechnology and Water Sustainability Research Unit College of Science Engineering and Technology University of South Africa Johannesburg South Africa
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11
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Hung CM, Huang CP, Chen SK, Chen CW, Dong CD. Electrochemical analysis of naproxen in water using poly(l-serine)-modified glassy carbon electrode. CHEMOSPHERE 2020; 254:126686. [PMID: 32320830 DOI: 10.1016/j.chemosphere.2020.126686] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/29/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
A poly(l-serine)-modified glassy carbon electrode (PLS/GCE) was fabricated by electropolymerization and used to study the detection of naproxen (NPX), a representative non-steroidal anti-inflammatory drug, in phosphate buffer supporting electrolyte at pH 5.0. Results indicated that the PLS/GCE was capable of determination of NPX at a working potential of 0.92 (vs. Ag/AgCl) in voltammetry mode. Experimental factors such as scan rate, accumulation time, solution pH, initial NPX concentration, and interferences were optimized for NPX determination efficiency. The morphology and elemental distribution of the electrode surface were characterized by ESEM, TEM, PSD, XRD, FTIR, TGA, XPS, and zeta potential. NPX oxidation current increased with increasing analyte concentration and scan rate but decreased with increasing pH. Linear sweep voltammetry calibration curve was established in the NPX concentration range of 4.3-65 μM, with detection limit and average recovery of 0.69 μM (n = 3) and 104 ± 2.5%, respectively. PLS/GCE is simple, accurate, reproducible, and easy for operation, therefore would be cost-effective for the determination of NPX.
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Affiliation(s)
- Chang-Mao Hung
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - C P Huang
- Department of Civil and Environmental Engineering, University of Delaware, Newark, USA
| | - Shih-Kai Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
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12
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Shaikshavali P, Reddy TM, Lakshmi Narayana A, Hussain OM, Venkataprasad G, Venu Gopal T. A powerful electrochemical sensor based on Fe3O4 nanoparticles-multiwalled carbon nanotubes hybrid for the effective monitoring of sunset yellow in soft drinks. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2020. [DOI: 10.1007/s11694-020-00569-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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13
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Sadhana R, Abraham P, Vidyadharan A. Solar Exfoliated Graphene Oxide: A Platform for Electrochemical Sensing of Epinephrine. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411015666190104110928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Introduction:
In this study, solar exfoliated graphite oxide modified glassy carbon electrode
was used for the anodic oxidation of epinephrine in a phosphate buffer medium at pH7. The
modified electrode showed fast response and sensitivity towards Epinephrine Molecule (EP). The
electrode was characterized electrochemically through Cyclic Voltammetry (CV) and Differential
Pulse Voltammetry (DPV). Area of the electrode enhanced three times during modification and studies
reveal that the oxidation process of EP occurs by an adsorption controlled process involving two
electrons. The results showed a detection limit of 0.50 ± 0.01μM with a linear range up to 100 μM.
The rate constant calculated for the electron transfer reaction is 1.35 s-1. The electrode was effective
for simultaneous detection of EP in the presence of Ascorbic Acid (AA) and Uric Acid (UA) with
well-resolved signals. The sensitivity, selectivity and stability of the sensor were also confirmed.
Methods:
Glassy carbon electrode modified by reduced graphene oxide was used for the detection
and quantification of epinephrine using cyclic voltammetry and differential pulse voltammetry.
Results:
The results showed an enhancement in the electrocatalytic oxidation of epinephrine due to
the increase in the effective surface area of the modified electrode. The anodic transfer coefficient,
detection limit and electron transfer rate constant of the reaction were also calculated.
Conclusion:
The paper reports the determination of epinephrine using reduced graphene oxide modified
glassy carbon electrode through CV and DPV. The sensor exhibited excellent reproducibility
and repeatability for the detection of epinephrine and also its simultaneous detection of ascorbic acid
and uric acid, which coexist in the biological system.
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Affiliation(s)
- Renjini Sadhana
- Department of Chemistry, Sree Narayana College for Women, Kollam, India
| | - Pinky Abraham
- Department of Chemistry, Sree Narayana College for Women, Kollam, India
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Gopal P, Narasimha G, Reddy TM. Development, validation and enzyme kinetic evaluation of multi walled carbon nano tubes mediated tyrosinase based electrochemical biosensing platform for the voltammetric monitoring of epinephrine. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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15
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A simple sonochemical assisted synthesis of nanocomposite (ZnO/MWCNTs) for electrochemical sensing of Epinephrine in human serum and pharmaceutical formulation. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124038] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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A Facile In-Situ Development of L-Valine Film onto the Surface of Carbon Paste Electrode Towards the Detection of Environmentally Hazardous 4-Amino Phenol. Z PHYS CHEM 2019. [DOI: 10.1515/zpch-2019-0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A small scale of environmentally hazardous 4-aminophenol can show significant impact on human health. Hence, in the present work, we have designed L-Valine film (Vf) modified carbon paste electrode (Vf/CPE) for the determination of 4-aminophenol. Herein, a facile in-situ L-Valine film was developed by electrochemical polymerization method onto the surface of bare carbon paste electrode (BCPE) with the help of cyclic voltammetry (CV) technique. A two-folds of electrochemical peak current enhancement was achieved at Vf/CPE in comparison with BCPE towards the determination of 4-aminophenol in optimum pH 7.0 of phosphate buffer solution (PBS). This was achieved due to the large surface area and conductive nature of Vf/CPE, which was concluded through the techniques of cyclic voltammetry and electrochemical impedance spectroscopy (EIS). The effect of pH of buffer and scan rate studies were successfully studied. Morphological changes of BCPE and Vf/CPE was studied with the help of scanning electron microscopy (SEM). The formation of Vf on CPE was also analyzed by Fourier transform infrared (FTIR) spectra. Under the optimized conditions, the limit of detection (LOD) and limit of quantification (LOQ) values of 4-aminophenol were estimated with the aid of chronoamperometry (CA) technique and was found to be 9.8 μM and 32 μM, respectively. Finally the proposed method was found to have satisfactory repeatability, reproducibility and stability results with low relative standard deviation (RSD) values.
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Mardani L, Vardini MT, Es'haghi M, Ghorbani-Kalhor E. Preparation of Molecularly Imprinted Magnetic Graphene Oxide-Gold Nanocomposite and Its Application to the Design of Electrochemical Sensor for Determination of Epinephrine. ANAL SCI 2019; 35:1173-1182. [PMID: 31257272 DOI: 10.2116/analsci.19p107] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this study, a new molecularly imprinted polymer (MIP) based nanocomposite was synthesized then used to determine epinephrine (EPN) by the use of an electrochemical sensor modified by it. Typical techniques for the synthesis of MIP have disadvantages, such as weak binding sites, low mass transfer and low selectivity. One of the ways to improve electrochemical properties is the use of graphene oxide (GR-Ox) and modification of its surface. For this purpose, GR-Ox was initially magnetized (MGR-Ox), then its surface was coated with a silica layer, and gold nanoparticles (AuNPs) were coated on its surface. Subsequently, copolymerization of methacrylic acid (MAA) and N,N'-methylene-bis-acrylamide (MBA) in the presence of EPN was performed on the MGO-AuNPs surface. Afterwards, a selective carbon paste electrode (CPE) with synthetic nanocomposite was fabricated to detect EPN. Under optimal conditions, a linear range from 10-8 to 5.0 × 10-7 M was obtained for the measurement of EPN in urine and blood with a detection limit of 5 × 10-9 M (S/N = 3).
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Affiliation(s)
- Leila Mardani
- Department of Chemistry, Tabriz Branch, Islamic Azad University
| | | | - Moosa Es'haghi
- Department of Chemistry, Tabriz Branch, Islamic Azad University
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Koçak ÇC. Poly(Taurine‐Glutathione)/Carbon Nanotube Modified Glassy Carbon Electrode as a New Levofloxacin Sensor. ELECTROANAL 2019. [DOI: 10.1002/elan.201900096] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Çağrı Ceylan Koçak
- Dokuz Eylul UniversityBergama Vocational School 35700 Bergama, Izmir Turkey Tel: +90 (0232) 632 12 47/115 Fax: +90 (0232) 631 11 10
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Zhou J, Wei P, Pan J, Mei Q, Tong Y, Zhai H. A simple and sensitive electrochemical sensor with A-PCA film modified electrode for the determination of metanephrine. NEW J CHEM 2019. [DOI: 10.1039/c9nj03098k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A novel electrochemical sensor of a A-PCA/GCE was fabricated by a simple electrodeposition method to determine metanephrine.
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Affiliation(s)
- Jianfeng Zhou
- College of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou 510006
- China
| | - Ping Wei
- College of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou 510006
- China
| | - Jianbin Pan
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Qinghua Mei
- Department of Pharmacy
- Guangdong Second Provincial General Hospital
- Guangzhou 510317
- China
| | - Yanli Tong
- Department of Pharmacy
- Guangdong Second Provincial General Hospital
- Guangzhou 510317
- China
| | - Haiyun Zhai
- College of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou 510006
- China
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20
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Clinical implications and electrochemical biosensing of monoamine neurotransmitters in body fluids, in vitro, in vivo, and ex vivo models. Biosens Bioelectron 2018; 121:137-152. [DOI: 10.1016/j.bios.2018.09.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/25/2018] [Accepted: 09/01/2018] [Indexed: 12/13/2022]
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Atta NF, Ahmed YM, Galal A. Layered-designed composite sensor based on crown ether/Nafion®/polymer/carbon nanotubes for determination of norepinephrine, paracetamol, tyrosine and ascorbic acid in biological fluids. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.09.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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22
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Application of graphite screen printed electrode modified with dysprosium tungstate nanoparticles in voltammetric determination of epinephrine in the presence of acetylcholine. J RARE EARTH 2018. [DOI: 10.1016/j.jre.2018.01.010] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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23
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Venu Gopal T, Reddy TM, Venkataprasad G, Shaikshavalli P, Gopal P. Rapid and sensitive electrochemical monitoring of paracetamol and its simultaneous resolution in presence of epinephrine and tyrosine at GO/poly(Val) composite modified carbon paste electrode. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.02.049] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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24
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A highly selective electrochemical sensor based on multi walled carbon nano tubes/poly (Evans blue) composite for the determination of l-dopa in presence of 5-HT and folic acid: a voltammetric investigation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1380-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Gopal P, Reddy TM. Fabrication of carbon-based nanomaterial composite electrochemical sensor for the monitoring of terbutaline in pharmaceutical formulations. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.11.059] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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26
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Palakollu VN, Chiwunze TE, Gill AA, Thapliyal N, Maru SM, Karpoormath R. Electrochemical sensitive determination of isoprenaline at β-cyclodextrin functionalized graphene oxide and electrochemically generated acid yellow 9 polymer modified electrode. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.10.092] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Carbon nanotube ensembled hybrid nanocomposite electrode for direct electrochemical detection of epinephrine in pharmaceutical tablets and urine. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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28
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Palakollu VN, Thapliyal N, Chiwunze TE, Karpoormath R, Karunanidhi S, Cherukupalli S. Electrochemically reduced graphene oxide/Poly-Glycine composite modified electrode for sensitive determination of l-dopa. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:394-404. [DOI: 10.1016/j.msec.2017.03.173] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/18/2017] [Accepted: 03/21/2017] [Indexed: 11/15/2022]
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Gopal P, Reddy TM, Palakollu VN. Development, Characterization and Application of a Carbon-Based Nanomaterial Composite as an Electrochemical Sensor for Monitoring Natural Antioxidant (Gallic Acid) in Beverages. ChemistrySelect 2017. [DOI: 10.1002/slct.201602053] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Palla Gopal
- Electrochemical Research Laboratory; Department of Chemistry; S.V.U. College of Sciences; Sri Venkateswara University; Tirupati- 517502, Andhra Pradesh India
| | - Tukiakula Madhusudana Reddy
- Electrochemical Research Laboratory; Department of Chemistry; S.V.U. College of Sciences; Sri Venkateswara University; Tirupati- 517502, Andhra Pradesh India
| | - Venkata Narayana Palakollu
- Department of Pharmaceutical Chemistry; College of Health Sciences; University of KwaZulu-Natal (Westville Campus); Durban South Africa- 4000
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30
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Anithaa A, Asokan K, Sekar C. Voltammetric determination of epinephrine and xanthine based on sodium dodecyl sulphate assisted tungsten trioxide nanoparticles. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.03.098] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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31
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Beitollahi H, Ivari SG, Torkzadeh-Mahani M. Voltammetric determination of 6-thioguanine and folic acid using a carbon paste electrode modified with ZnO-CuO nanoplates and modifier. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:128-33. [DOI: 10.1016/j.msec.2016.06.064] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/12/2016] [Accepted: 06/20/2016] [Indexed: 11/25/2022]
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Li J, Wang X, Duan H, Wang Y, Luo C. Ultra-sensitive determination of epinephrine based on TiO2-Au nanoclusters supported on reduced graphene oxide and carbon nanotube hybrid nanocomposites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 64:391-398. [PMID: 27127069 DOI: 10.1016/j.msec.2016.04.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/07/2016] [Accepted: 04/01/2016] [Indexed: 12/25/2022]
Abstract
A highly efficient and sensitive electrochemical sensor for EP based on reduced graphene and multi-walled carbon nanotube hybrid nanocomposites loaded TiO2-Au nano-clusters modified glassy carbon electrode was developed. The surface nature and morphology of the nanocomposite film and the electrochemical properties of the sensor were characterized by Raman spectra, X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectra (EDX), Fourier transform infrared spectroscopy (FT-IR), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV), respectively. Carbon nanomaterials were widely used in sensing due to its large electroactive surface area, fast electron transport and strong adsorption capacity. Meanwhile, TiO2-Au nano-clusters could accelerate the electron transfer, increase reactive site and extend electrochemical response window. The nanocomposite film could greatly enhance the response sensitivity and decrease the overpotential. The resulting sensor showed an excellent electrocatalytic activity toward EP. Under the optimum conditions (i.e. pH6.0, 0.1M PBS, preconcentration for 110s), Differential pulse voltammetry was employed to detect ultra-trace amounts of EP. The result of a wide linear range of 1.0-300nM and limited of detection 0.34nM (S/N=3) were obtained. The constructed sensor exhibited excellent accuracy and precision, the relative standard deviation (RSD) was less than 5%. The nanocomposite film sensor was successfully used to accurately detect the content of EP in practical samples, and the recoveries for the standards added are 97%-105%.
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Affiliation(s)
- Jianbo Li
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
| | - Xiaojiao Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Huimin Duan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yanhui Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Chuannan Luo
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
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Differential pulse voltammetric determination of nanomolar concentrations of antiviral drug acyclovir at polymer film modified glassy carbon electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 61:858-64. [DOI: 10.1016/j.msec.2016.01.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 11/03/2015] [Accepted: 01/11/2016] [Indexed: 11/13/2022]
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