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Temgoua RCT, Dontsi FT, Lebègue E, Thobie-Gautier C, Tonlé IK, Boujtita M. Understanding the behavior of phenylurazole-tyrosine-click electrochemical reaction using hybrid electroanalytical techniques. J Pharm Biomed Anal 2024; 245:116147. [PMID: 38640847 DOI: 10.1016/j.jpba.2024.116147] [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: 12/09/2023] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024]
Abstract
In this work, the electrochemical behavior of 4-phenylurazole (Ph-Ur) was studied and the latter was used as a molecular anchor for the electrochemical bioconjugation of tyrosine (Y). Cyclic voltammetry (CV) and controlled potential coulometry (CPC) allowed the in-situ generation of the PTAD (4-phenyl-3 H-1,2,4-triazole-3,5(4 H)-dione) species from phenylurazole on demand for tyrosine electrolabeling. The chemoselectivity of the reaction was studied with another amino acid (lysine, Lys) and no changes in Lys were observed. To evaluate the performance of tyrosine electrolabeling, coulometric analyses at controlled potentials were performed on solutions of phenylurazole and the phenylurazole-tyrosine mixture in different proportions (2:1, 1:1, and 1:2). The electrolysis of the phenylurazole-tyrosine mixture in the ratio (1:2) produced a charge of 2.07 C, very close to the theoretical value (1.93 C), with high reaction kinetics, a result obtained here for the first time. The products obtained were identified and characterized by liquid chromatography coupled to high-resolution electrospray ionization mass spectrometry (LC-HRMS and LC- HRMS2). Two products were formed from the click reactions, one of which was the majority. Another part of this work was to study the electrochemical degradation of the molecular anchor 4-phenylazole (Ph-Ur). Four stable degradation products of phenylurazole were identified (C7H9N2O, C6H8N, C6H8NO, C14H13N4O2) based on chromatographic profiles and mass spectrometry results. The charge generated during the electrolysis of phenylurazole (two-electron process) (2.85 C) is inconsistent with the theoretical or calculated charge (1.93 C), indicating that secondary/parasitic reactions occurred during the electrolysis of the latter. In conclusion, the electrochemically promoted click phenylurazole-tyrosine reactions give rise to click products with high reaction kinetics and yields in the (1:2) phenylurazole-tyrosine ratios, and the presence of side reactions is likely to affect the yield of the click phenylurazole-tyrosine reaction.
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Affiliation(s)
- Ranil C T Temgoua
- Nantes Université, CNRS, CEISAM UMR 6230, Nantes F-44000, France; University of Dschang, Electrochemistry and Chemistry of Materials, Department of Chemistry, Dschang, Cameroon.
| | - Fabiola T Dontsi
- University of Dschang, Electrochemistry and Chemistry of Materials, Department of Chemistry, Dschang, Cameroon
| | - Estelle Lebègue
- Nantes Université, CNRS, CEISAM UMR 6230, Nantes F-44000, France
| | | | - Ignas K Tonlé
- University of Dschang, Electrochemistry and Chemistry of Materials, Department of Chemistry, Dschang, Cameroon
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Silva Lima AR, Rodrigues GC, Rezende Rodrigues AC, Vanoni CR, Micke GA, Caramori GF, Affeldt RF, Nagurniak GR, Jost CL. First report on the electrooxidation of vinpocetine using a modification free sensing platform: application to pharmaceutical formulations. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:4002-4009. [PMID: 38855859 DOI: 10.1039/d4ay00598h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
This study presents the first insights into vinpocetine (VIN) behavior, a nootropic compound, on a glassy carbon electrode (GCE). Cyclic voltammetry (CV) revealed an irreversible oxidation peak at +1.0 V (vs. Ag/AgCl), with pH dependency indicating proton involvement in the electrochemical reaction. Density functional theory (DFT) optimized VIN's molecular geometry, while Fukui functions and dual descriptors elucidated its reactivity for a more straightforward exploration of the complete electrooxidation mechanism. Differential pulse voltammetry (DPV) demonstrated VIN sensing capabilities within a concentration range of 0.20 to 12.8 mg L-1, with a theoretical limit of detection (LOD) at 0.07 mg L-1, using optimized conditions of supporting electrolyte. The method showed selectivity in the presence of excipients and interfering species commonly found in pharmaceutical formulations. Recovery tests yielded 95.5% (n = 3), and quantification in pharmaceutical formulations showed no significant differences compared to the reference method based on HPLC DAD. This novel electroanalytical method holds promise for VIN nootropic sensing and routine pharmaceutical analysis.
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Affiliation(s)
- Adriano Rogerio Silva Lima
- Ampere - Laboratório de Plataformas Eletroquímicas, Departamento de Química - Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Gabriel Chitolina Rodrigues
- Ampere - Laboratório de Plataformas Eletroquímicas, Departamento de Química - Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Alan Carlos Rezende Rodrigues
- LABECC - Laboratório de Eletroforese Capilar e Cromatografia, Departamento de Química - Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Caio Raphael Vanoni
- Ampere - Laboratório de Plataformas Eletroquímicas, Departamento de Química - Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Gustavo Amadeu Micke
- LABECC - Laboratório de Eletroforese Capilar e Cromatografia, Departamento de Química - Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Giovanni Finoto Caramori
- Departamento de Química - Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Ricardo Ferreira Affeldt
- Departamento de Química - Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Glaucio Régis Nagurniak
- Departamento de Ciências Exatas e Educação, Universidade Federal de Santa Catarina, Blumenau, SC, 89036-002, Brazil
| | - Cristiane Luisa Jost
- Ampere - Laboratório de Plataformas Eletroquímicas, Departamento de Química - Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, SC, 88040-900, Brazil.
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da Silva VJ, Baumgarten LG, Dreyer JP, Santana ER, Spinelli A, Winiarski JP, Vieira IC. Heparin-stabilized gold nanoparticles embedded in graphene for the electrochemical determination of esculetin. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2256-2266. [PMID: 38517319 DOI: 10.1039/d4ay00229f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
A conductive nanocomposite consisting of heparin-stabilized gold nanoparticles embedded in graphene was prepared and characterized to develop an electrochemical sensor for the determination of esculetin in tea and jam samples. The gold nanoparticles were characterized by spectroscopic and microscopic techniques. The different proportions of graphene in the nanocomposite were evaluated and characterized by electrochemical practices. The heterostructure material on the glassy carbon electrode with esculetin showed π-π stacking interactions with an adsorption-controlled process. The voltammetric profile of esculetin using the proposed nanomaterial presented oxidation and reduction peaks at +0.61 and +0.58 V vs. Ag/AgCl, respectively, facilitating the electron transfer with esculetin through the transfer of two moles of protons and two moles of electrons per mole of esculetin. Using optimized conditions and square wave voltammetry, the calibration curve was obtained with two linear ranges, from 0.1 to 20.5 μmol L-1, with a detection limit of 43.0 nmol L-1. The electrochemical sensor showed satisfactory results for repeatability and stability, although interferences were observed in the presence of high concentrations of ascorbic acid or quercetin. The sensor was successfully applied in the determination of esculetin in samples of mulberry jam, white mulberry leaf tea, and white mulberry powder tea, presenting adequate recovery ranges. This directive provides valuable insights for the development of novel electrochemical sensors using heparin-based conductive nanomaterials with improved sensitivity and sensibility.
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Affiliation(s)
- Vinicius José da Silva
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Luan Gabriel Baumgarten
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Juliana Priscila Dreyer
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Edson Roberto Santana
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Almir Spinelli
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - João Paulo Winiarski
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Iolanda Cruz Vieira
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil.
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Chanjamsri N, Phonchai A, Ngamchuea K, Nacapricha D, Wilairat P, Chaisiwamongkhol K. Determination of promethazine in forensic samples using multi-walled carbon nanotube-gold nanoparticle electrochemical sensor. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:817-829. [PMID: 38168774 DOI: 10.1039/d3ay01706k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
An electrochemical sensor was developed based on a glassy carbon electrode (GCE) modified with multi-walled carbon nanotubes (MWCNTs) and gold nanoparticles (AuNPs) for the determination of promethazine (PMZ) in 'purple drank', pharmaceutical formulations, and synthetic saliva. The oxidation of PMZ at the modified electrode occurred at a higher cathodic potential and produced a higher sensitivity compared to the unmodified GCE. The morphology of the modified electrode was characterized using field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). The presence of MWCNTs and AuNPs was confirmed. The optimized parameters included the concentration and pH of the supporting electrolyte, amount of modifiers used to fabricate the electrode, deposition potential, and time. Using these optimized conditions, the method has a linear range from 0.5 to 100 μmol L-1, with a R2 value of 0.9991. The limit of detection (3SDblank/slope) was 0.13 μmol L-1. The proposed electrochemical sensor was successfully applied for the determination of PMZ in 'purple drank', pharmaceutical formulations, and spiked synthetic saliva samples. The results obtained from this sensor were in statistical agreement with the values obtained using the reference gas chromatography-flame ionization method.
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Affiliation(s)
| | - Apichai Phonchai
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Forensic Science Innovation and Service Center, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Kamonwad Ngamchuea
- School of Chemistry, Institute of Science, Suranaree University of Technology, 111 University Avenue, Suranaree, Muang, Nakhon Ratchasima 30000, Thailand
| | - Duangjai Nacapricha
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
- Flow Innovation-Research for Science and Technology Laboratories (FIRST Labs), Thailand
| | - Prapin Wilairat
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
- Flow Innovation-Research for Science and Technology Laboratories (FIRST Labs), Thailand
| | - Korbua Chaisiwamongkhol
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand.
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Center of Chemical Innovation for Sustainability (CIS), Mae Fah Luang University, Chiang Rai 57100, Thailand
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Döll EG, Santana ER, Winiarski JP, Baumgarten LG, Vieira IC. Green Synthesis of Gold Nanoparticles Using Peach Extract Incorporated in Graphene for the Electrochemical Determination of Antioxidant Butylated Hydroxyanisole in Food Matrices. BIOSENSORS 2023; 13:1037. [PMID: 38131797 PMCID: PMC10741992 DOI: 10.3390/bios13121037] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 11/29/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Butylated hydroxyanisole (BHA) is a synthetic phenolic antioxidant widely used in various food matrices to prevent oxidative rancidity. However, its presence has been associated with liver damage and carcinogenesis in animals. Thus, an electrochemical sensor was built using a composite of gold nanoparticles synthesized in peach extract (Prunus persica (L.) Batsch) and graphene. Peach extract served as a reducing and stabilizing agent for gold nanoparticles, as a dispersing agent for graphene, and as a film former to immobilize the composite on the surface of a glassy carbon electrode. The gold nanoparticles were characterized using spectroscopic and microscopic techniques, and the electrodes were electrochemically characterized using electrochemical impedance spectroscopy and cyclic voltammetry. The sensor provided higher current responses and lower charge transfer resistances compared to the unmodified glassy carbon electrode. Under the established optimized working conditions (0.1 mol L-1 Britton-Robinson buffer, pH 4.0, and differential pulse voltammetry), the calibration curve exhibited a linear range from 0.2 to 9.8 µmol L-1, with a detection limit of 70 nmol L-1. The proposed sensor represented a sensitive and practical analytical tool for the accurate determination of BHA in mayonnaise samples.
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Affiliation(s)
| | - Edson Roberto Santana
- Laboratory of Biosensors, Department of Chemistry, Federal University of Santa Catarina, Florianópolis 88040 900, Santa Catarina, Brazil; (E.G.D.); (J.P.W.); (L.G.B.); (I.C.V.)
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Nardi N, Baumgarten LG, Dreyer JP, Santana ER, Winiarski JP, Vieira IC. Nanocomposite based on green synthesis of gold nanoparticles decorated with functionalized multi-walled carbon nanotubes for the electrochemical determination of hydroxychloroquine. J Pharm Biomed Anal 2023; 236:115681. [PMID: 37672903 DOI: 10.1016/j.jpba.2023.115681] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 08/13/2023] [Accepted: 08/23/2023] [Indexed: 09/08/2023]
Abstract
In this study, a selective and sensitive electrochemical approach for determining hydroxychloroquine (HCQ) was proposed. A novel nanocomposite based on gold nanoparticles synthesized by green synthesis in an extract of white pitaya (Hylocereus undatus) (AuNP-Ext) decorated with functionalized multi-walled carbon nanotubes (f-MWCNTs) was presented. AuNP-Ext was characterized by ultraviolet-visible spectroscopy and the f-MWCNTs/AuNP-Ext nanocomposite by transmission electron microscopy. The nanocomposite was used to modify a glassy carbon electrode (GCE). Using the f-MWCNT-AuNP-Ext/GCE sensor, an irreversible oxidation peak at +0.74 V vs. Ag/AgCl was verified by HCQ. The calibration plot was studied in two linear ranges, from 0.03 to 3.5 µmol/L and from 3.5 to 17.0 µmol/L, with a limit of detection of 0.0093 µmol/L and a limit of quantification of 0.031 µmol/L, regarding the first linear range. The proposed sensor was successfully applied to the determination of HCQ in pharmaceutical and clinical samples without any special purification, separation or pre-treatment steps. The accuracy was verified by UV-Vis spectrometry, and this revealed that the proposed method was accurate and precise, as evidenced by F- and t-tests.
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Affiliation(s)
- Nathalia Nardi
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC 88040-900, Brazil
| | - Luan Gabriel Baumgarten
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC 88040-900, Brazil
| | - Juliana Priscila Dreyer
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC 88040-900, Brazil
| | - Edson Roberto Santana
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC 88040-900, Brazil
| | - João Paulo Winiarski
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC 88040-900, Brazil.
| | - Iolanda Cruz Vieira
- Laboratory of Biosensors - Department of Chemistry, Federal University of Santa Catarina, Campus Trindade, Florianópolis, SC 88040-900, Brazil.
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Pecheu CN, Tchieda VK, Tajeu KY, Jiokeng SLZ, Lesch A, Tonle IK, Ngameni E, Janiak C. Electrochemical Determination of Epinephrine in Pharmaceutical Preparation Using Laponite Clay-Modified Graphene Inkjet-Printed Electrode. Molecules 2023; 28:5487. [PMID: 37513359 PMCID: PMC10386127 DOI: 10.3390/molecules28145487] [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: 06/14/2023] [Revised: 07/06/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
Epinephrine (EP, also called adrenaline) is a compound belonging to the catecholamine neurotransmitter family. It can cause neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, Huntington's disease and amyotrophic lateral sclerosis. This work describes an amperometric sensor for the electroanalytical detection of EP by using an inkjet-printed graphene electrode (IPGE) that has been chemically modified by a thin layer of a laponite (La) clay mineral. The ion exchange properties and permeability of the chemically modified electrode (denoted La/IPGE) were evaluated using multi-sweep cyclic voltammetry, while its charge transfer resistance was determined by electrochemical impedance spectroscopy. The results showed that La/IPGE exhibited higher sensitivity to EP compared to the bare IPGE. The developed sensor was directly applied for the determination of EP in aqueous solution using differential pulse voltammetry. Under optimized conditions, a linear calibration graph was obtained in the concentration range between 0.8 µM and 10 μM. The anodic peak current of EP was directly proportional to its concentration, leading to detection limits of 0.34 μM and 0.26 μM with bare IPGE and La/IPGE, respectively. The sensor was successfully applied for the determination of EP in pharmaceutical preparations. Recovery rates and the effects of interfering species on the detection of EP were evaluated to highlight the selectivity of the elaborated sensor.
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Affiliation(s)
- Chancellin Nkepdep Pecheu
- Electrochemistry and Chemistry of Materials, Department of Chemistry, University of Dschang, Dschang P.O. Box 67, Cameroon
| | - Victor Kougoum Tchieda
- Electrochemistry and Chemistry of Materials, Department of Chemistry, University of Dschang, Dschang P.O. Box 67, Cameroon
| | - Kevin Yemele Tajeu
- Electrochemistry and Chemistry of Materials, Department of Chemistry, University of Dschang, Dschang P.O. Box 67, Cameroon
| | - Sherman Lesly Zambou Jiokeng
- Electrochemistry and Chemistry of Materials, Department of Chemistry, University of Dschang, Dschang P.O. Box 67, Cameroon
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, 40204 Düsseldorf, Germany
| | - Andreas Lesch
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, 40136 Bologna, Italy
| | - Ignas Kenfack Tonle
- Electrochemistry and Chemistry of Materials, Department of Chemistry, University of Dschang, Dschang P.O. Box 67, Cameroon
| | - Emmanuel Ngameni
- Laboratory of Analytical Chemistry, Faculty of Science, The University of Yaounde 1, Yaounde P.O. Box 812, Cameroon
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, 40204 Düsseldorf, Germany
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Li Y, Yang Y, Huang Y, Li J, Zhao P, Fei J, Xie Y. An ultrasensitive dietary caffeic acid electrochemical sensor based on Pd-Ru bimetal catalyst doped nano sponge-like carbon. Food Chem 2023; 425:136484. [PMID: 37295208 DOI: 10.1016/j.foodchem.2023.136484] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/11/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023]
Abstract
Caffeic acid (CA) is widely present in the human daily diet, and a reliable CA detection method is beneficial to food safety. Herein, we constructed a CA electrochemical sensor employing a glassy carbon electrode (GCE) which was modified by the bimetallic Pd-Ru nanoparticles decorated N-doped spongy porous carbon obtained by pyrolysis of the energetic metal-organic framework (MET). The high-energy bond N-NN in MET explodes to form N-doped sponge-like carbon materials (N-SCs) with porous structures, boosting the adsorptive capacity for CA. The addition of Pd-Ru bimetal improves the electrochemical sensitivity. The linear range of the PdRu/N-SCs/GCE sensor is 1 nM-100 nM and 100 nM-15 μM, with a low detection limit (LOD) of 0.19 nM. It has a high sensitivity (55 μA/μM) and repeatability. The PdRu/N-SCs/GCE sensor has been used to detect CA in actual samples of red wine, strawberries, and blueberries, providing a novel approach for CA detection in food analysis.
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Affiliation(s)
- Yuhong Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Yaqi Yang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Yutian Huang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Jiejun Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Pengcheng Zhao
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, People's Republic of China; Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Junjie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, People's Republic of China; Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, People's Republic of China.
| | - Yixi Xie
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, People's Republic of China; Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan 411105, People's Republic of China.
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Li Y, Yang Y, Li J, Zhang L, Zhao P, Fei J, Xie Y. Ultrasensitive Luteolin Electrochemical Sensor Based on Novel Lamellar CuZn@ Nitrogen-Containing Carbon Nanosheets. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:nano13010171. [PMID: 36616084 PMCID: PMC9823784 DOI: 10.3390/nano13010171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/24/2022] [Accepted: 12/28/2022] [Indexed: 06/12/2023]
Abstract
The Cu/Zn-zeolitic imidazolate framework (Cu/Zn-ZIF) was synthesized using the traditional hydrothermal method, and its surface morphology was controlled by adding polyvinylpyrrolidone (PVP) during its synthesis. It was then calcined at 800 °C to form the nitrogen-containing carbon material CuZn@NC, which improved the electron transfer rate. Scanning electron microscopy (SEM), X-ray crystal diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were used to investigate the surface morphology and structure. Finally, the electrochemical sensing platform for luteolin was effectively constructed by changing the metal-ion ratio during synthesis to achieve the most suitable electrode material. The sensor platform detects luteolin well, with an operating curve equation of Ip (A) = 0.0571C (nM) - 1.2913 and a minimum detection limit of 15 nM, and the platform has been successfully employed for luteolin detection in real samples.
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Affiliation(s)
- Yuhong Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yaqi Yang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Jiejun Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Li Zhang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Pengcheng Zhao
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan 411105, China
| | - Junjie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, China
| | - Yixi Xie
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan 411105, China
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Thadathil A, Thacharakkal D, Ismail YA, Periyat P. Polyindole-Derived Nitrogen-Doped Graphene Quantum Dots-Based Electrochemical Sensor for Dopamine Detection. BIOSENSORS 2022; 12:1063. [PMID: 36551030 PMCID: PMC9775058 DOI: 10.3390/bios12121063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/11/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
The sensitive monitoring of dopamine levels in the human body is of utmost importance since its abnormal levels can cause a variety of medical and behavioral problems. In this regard, we report the synthesis of nitrogen-doped graphene quantum dots (N-GQDs) from polyindole (PIN) via a facile single-step hydrothermal synthetic strategy that can act as an efficient electrochemical catalyst for the detection of dopamine (DA). The average diameter of N-GQDs was ∼5.2 nm and showed a C/N atomic ratio of ∼2.75%. These N-GQDs exhibit a cyan fluorescence color under irradiation from a 365 nm lamp, while PIN has no characteristic PL. The presence of richly N-doped graphitic lattices in the N-GQDs possibly accounts for the improved catalytic activity of N-GQDs/GCE towards electrocatalytic DA detection. Under optimum conditions, this novel N-GQDs-modified electrode exhibits superior selectivity and sensitivity. Moreover, it could detect as low as 0.15 nM of DA with a linear range of 0.001-1000 µM. In addition, the outstanding sensing attributes of the detector were extended to the real samples as well. Overall, our findings evidence that N-GQDs-based DA electrochemical sensors can be synthesized from PIN precursor and could act as promising EC sensors in medical diagnostic applications.
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Affiliation(s)
- Anjitha Thadathil
- Department of Chemistry, University of Calicut, Malappuram 673635, India
| | - Dipin Thacharakkal
- Department of Chemistry, University of Calicut, Malappuram 673635, India
| | - Yahya A. Ismail
- Department of Chemistry, University of Calicut, Malappuram 673635, India
| | - Pradeepan Periyat
- Department of Environmental Studies, Kannur University, Kannur 670567, India
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11
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Li Y, Tang J, Lin Y, Li J, Yang Y, Zhao P, Fei J, Xie Y. Ultrasensitive Determination of Natural Flavonoid Rutin Using an Electrochemical Sensor Based on Metal-Organic Framework CAU-1/Acidified Carbon Nanotubes Composites. Molecules 2022; 27:molecules27227761. [PMID: 36431862 PMCID: PMC9695502 DOI: 10.3390/molecules27227761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/05/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022] Open
Abstract
Rutin, a natural flavonol glycoside, is widely present in plants and foods, such as black tea and wheat tea. The antioxidant and anti-inflammatory effects of flavonoids are well known. In this study, a new electrochemical rutin sensor was developed using multiwalled carbon nanotubes/aluminum-based metal-organic frameworks (MWCNT/CAU-1) (CAU-1, a type of Al-MOF) as the electrode modification material. The suspension of multiwalled carbon tubes was dropped on the surface of the GCE electrode to make MWCNT/GCEs, and CAU-1 was then attached to the electrode surface by electrodeposition. MWCNTs and CAU-1 were characterized using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). Due to the synergistic effect of CAU-1 and MWCNT-COOH, the prepared sensor showed an ultrasensitive electrochemical response to rutin. Under optimized conditions, the sensor showed a linear relationship between 1.0 × 10-9~3.0 × 10-6 M with a detection limit of 6.7 × 10-10 M (S/N = 3). The sensor also showed satisfactory stability and accuracy in the detection of real samples.
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Affiliation(s)
- Yuhong Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Jianxiong Tang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yueli Lin
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Jiejun Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yaqi Yang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Pengcheng Zhao
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan 411105, China
| | - Junjie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, China
- Correspondence: (J.F.); (Y.X.)
| | - Yixi Xie
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan 411105, China
- Correspondence: (J.F.); (Y.X.)
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12
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Bimetallic Mn/Fe MOF modified screen-printed electrodes for non-enzymatic electrochemical sensing of organophosphate. Anal Chim Acta 2022; 1202:339676. [DOI: 10.1016/j.aca.2022.339676] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 02/14/2022] [Accepted: 03/02/2022] [Indexed: 12/13/2022]
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13
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Vinothkumar V, Koventhan C, Chen SM, Huang YF. A facile development of rare earth neodymium nickelate nanoparticles for selective electrochemical determination of antipsychotic drug prochlorperazine. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.02.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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14
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Barros Azeredo NF, Ferreira Santos MS, Sempionatto JR, Wang J, Angnes L. Screen-Printed Technologies Combined with Flow Analysis Techniques: Moving from Benchtop to Everywhere. Anal Chem 2021; 94:250-268. [PMID: 34851628 DOI: 10.1021/acs.analchem.1c02637] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Screen-printed electrodes (SPEs) coupled with flow systems have been reported in recent decades for an ever-growing number of applications in modern electroanalysis, aiming for portable methodologies. The information acquired through this combination can be attractive for future users with basic knowledge, especially due to the increased measurement throughput, reduction in reagent consumption and minimal waste generation. The trends and possibilities of this set rely on the synergistic behavior that maximizes both SPE and flow analyses characteristics, allowing mass production and automation. This overview addresses an in-depth update about the scope of samples, target analytes, and analytical throughput (injections per hour, limits of detection, linear range, etc.) obtained by coupling injection techniques (FIA, SIA, and BIA) with SPE-based electrochemical detection.
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Affiliation(s)
- Nathália Florência Barros Azeredo
- Institute of Chemistry, University of São Paulo, São Paulo 05508-070, Brazil.,Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | | | - Juliane R Sempionatto
- Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | - Joseph Wang
- Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | - Lúcio Angnes
- Institute of Chemistry, University of São Paulo, São Paulo 05508-070, Brazil
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15
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Tagueu Massah R, Matemb Ma Ntep TJ, Njanja E, Lesly Zambou Jiokeng S, Liang J, Janiak C, Kenfack Tonle I. A metal-organic framework-based amperometric sensor for the sensitive determination of sulfite ions in the presence of ascorbic acid. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106569] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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16
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The Scavenging Effect of Myoglobin from Meat Extracts toward Peroxynitrite Studied with a Flow Injection System Based on Electrochemical Reduction over a Screen-Printed Carbon Electrode Modified with Cobalt Phthalocyanine: Quantification and Kinetics. BIOSENSORS-BASEL 2021; 11:bios11070220. [PMID: 34356690 PMCID: PMC8301918 DOI: 10.3390/bios11070220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 06/27/2021] [Accepted: 06/29/2021] [Indexed: 11/17/2022]
Abstract
The scavenging activity of myoglobin toward peroxynitrite (PON) was studied in meat extracts, using a new developed electrochemical method (based on cobalt phthalocyanine-modified screen-printed carbon electrode, SPCE/CoPc) and calculating kinetic parameters of PON decay (such as half-time and apparent rate constants). As reactive oxygen/nitrogen species (ROS/RNS) affect the food quality, the consumers can be negatively influenced. The discoloration, rancidity, and flavor of meat are altered in the presence of these species, such as PON. Our new highly thermically stable, cost-effective, rapid, and simple electrocatalytical method was combined with a flow injection analysis system to achieve high sensitivity (10.843 nA µM−1) at a nanomolar level LoD (400 nM), within a linear range of 3–180 µM. The proposed biosensor was fully characterized using SEM, FTIR, Raman spectroscopy, Cyclic Voltammetry (CV), Differential Pulse Voltammetry (DPV), and Linear Sweep Voltammetry (LSV). These achievements were obtained due to the CoPc-mediated reduction of PON at very low potentials (around 0.1 V vs. Ag/AgCl pseudoreference). We also proposed a redox mechanism involving two electrons in the reduction of peroxynitrite to nitrite and studied some important interfering species (nitrite, nitrate, hydrogen peroxide, dopamine, ascorbic acid), which showed that our method is highly selective. These features make our work relevant, as it could be further applied to study the kinetics of important oxidative processes in vivo or in vitro, as PON is usually present in the nanomolar or micromolar range in physiological conditions, and our method is sensitive enough to be applied.
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17
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Dongmo LM, Guenang LS, Jiokeng SLZ, Kamdem AT, Doungmo G, Victor BC, Jović M, Lesch A, Tonlé IK, Girault H. A new sensor based on an amino-montmorillonite-modified inkjet-printed graphene electrode for the voltammetric determination of gentisic acid. Mikrochim Acta 2021; 188:36. [PMID: 33420843 DOI: 10.1007/s00604-020-04651-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 11/17/2020] [Indexed: 11/24/2022]
Abstract
An amperometric sensor based on an inkjet-printed graphene electrode (IPGE) modified with amine-functionalized montmorillonite (Mt-NH2) for the electroanalysis and quantification of gentisic acid (GA) has been developed. The organoclay used as IPGE modifier was prepared and characterized by infrared spectroscopy, X-ray diffraction, scanning electron microscopy, CHN elemental analysis, and thermogravimetry. The electrochemical features of the Mt-NH2/IPGE sensor were investigated by cyclic voltammetry and electrochemical impedance spectroscopy. The sensor exhibited charge selectivity ability which was exploited for the electrochemical oxidation of GA. The GA amperometric response was high in acidic medium (Brinton-Robinson buffer, pH 2) due to favorable interactions between the protonated amine groups and the negatively charged GA. Kinetic studies were also performed by cyclic voltammetry, and the obtained electron transfer rate constant of 11.3 s-1 indicated a fast direct electron transfer rate of GA to the electrode. An approach using differential pulse voltammetry was then developed for the determination of GA (at + 0.233 V vs. a pseudo Ag/Ag+ reference electrode), and under optimized conditions, the sensor showed high sensitivity, a wide working linear range from 1 to 21 μM (R2 = 0.999), and a low detection limit of 0.33 μM (0.051 ± 0.01 mg L-1). The proposed sensor was applied to quantify GA in a commercial red wine sample. The simple and rapid method developed using a cheap clay material could be employed for the determination of various phenolic acids.
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Affiliation(s)
- Liliane M Dongmo
- Department of Chemistry, Electrochemistry and Chemistry of Materials, University of Dschang, Dschang, Cameroon
| | - Léopoldine S Guenang
- Department of Chemistry, Electrochemistry and Chemistry of Materials, University of Dschang, Dschang, Cameroon
- Department of chemistry, Inorganic Chemistry Laboratory, University of Buea, Buea, Cameroon
| | - Sherman L Z Jiokeng
- Department of Chemistry, Electrochemistry and Chemistry of Materials, University of Dschang, Dschang, Cameroon
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564 CNRS - Université de Lorraine, 405, rue de Vandœuvre, 54600, Villers-lès-Nancy, France
| | - Arnaud T Kamdem
- Institute of Microsystems Engineering IMTEK, Laboratory for Sensors, University of Freiburg, 79110, Freiburg, Germany
| | - Giscard Doungmo
- Department of Chemistry, Electrochemistry and Chemistry of Materials, University of Dschang, Dschang, Cameroon
- Institute of Inorganic Chemistry, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straβe 2, 24118, Kiel, Germany
| | - Bassetto C Victor
- Laboratoire d'Electrochimie Physique et Analytique, EPFL, Rue de l'Industrie, CH-1951, Sion, Switzerland
| | - Milica Jović
- Laboratoire d'Electrochimie Physique et Analytique, EPFL, Rue de l'Industrie, CH-1951, Sion, Switzerland
| | - Andreas Lesch
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, 40136, Bologna, Italy
| | - Ignas K Tonlé
- Department of Chemistry, Electrochemistry and Chemistry of Materials, University of Dschang, Dschang, Cameroon.
| | - Hubert Girault
- Laboratoire d'Electrochimie Physique et Analytique, EPFL, Rue de l'Industrie, CH-1951, Sion, Switzerland
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Bojko L, de Jonge G, Lima D, Lopes LC, Viana AG, Garcia JR, Pessôa CA, Wohnrath K, Inaba J. Porphyran-capped silver nanoparticles as a promising antibacterial agent and electrode modifier for 5-fluorouracil electroanalysis. Carbohydr Res 2020; 498:108193. [PMID: 33190002 DOI: 10.1016/j.carres.2020.108193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 10/22/2020] [Accepted: 11/03/2020] [Indexed: 01/08/2023]
Abstract
In the present work, the green synthesis of silver nanoparticles (AgNPs) using the sulfated polysaccharide porphyran (PFR) as capping agent and d-glucose as reducing agent is described. PFR was extracted from red seaweed and characterized by employing 13C NMR and determination of total sugar, protein, and sulfate contents. The obtained AgNPs-PFR were characterized by using UV-VIS spectroscopy, zeta potential determination, FESEM, and TEM, which demonstrated that PFR was effective at capping the AgNPs, yielding stable suspensions. The AgNPs-PFR presented good antimicrobial properties against Gram-positive and Gram-negative bacterial strains (Staphylococcus aureus and Escherichia coli, respectively). The AgNPs-PFR were also employed as the modifier of carbon paste electrodes, which were efficiently applied as electrochemical sensors for the determination of 5-fluorouracil (5-FU), an important anticancer drug, through square wave voltammetry (SWV). The AgNPs-PFR improved the electrochemical properties of the electrodes, and enhanced their electroanalytical performance. The developed sensing device presented detection and quantification limits equal to 10.7 and 35.8 μmol L-1, respectively, towards 5-FU determination. The proposed electrochemical sensor successfully quantified 5-FU in a real pharmaceutical formulation, confirming its potential as a new promising analytical detection tool for 5-FU quality control purposes.
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Affiliation(s)
- Luana Bojko
- Departamento de Química, Universidade Estadual de Ponta Grossa, Av. Gal. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Gabriela de Jonge
- Departamento de Química, Universidade Estadual de Ponta Grossa, Av. Gal. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Dhésmon Lima
- Departamento de Química, Universidade Estadual de Ponta Grossa, Av. Gal. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Luma Clarindo Lopes
- Departamento de Química, Universidade Estadual de Ponta Grossa, Av. Gal. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Adriano Gonçalves Viana
- Departamento de Química, Universidade Estadual de Ponta Grossa, Av. Gal. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Jarem Raul Garcia
- Departamento de Química, Universidade Estadual de Ponta Grossa, Av. Gal. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Christiana Andrade Pessôa
- Departamento de Química, Universidade Estadual de Ponta Grossa, Av. Gal. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Karen Wohnrath
- Departamento de Química, Universidade Estadual de Ponta Grossa, Av. Gal. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Juliana Inaba
- Departamento de Química, Universidade Estadual de Ponta Grossa, Av. Gal. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil.
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19
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Sakthivel R, Kubendhiran S, Chen SM, Chen TW, Al-Zaqri N, Alsalme A, Alharthi FA, Abu Khanjer MM, Tseng TW, Huang CC. Exploring the promising potential of MoS2–RuS2 binary metal sulphide towards the electrocatalysis of antibiotic drug sulphadiazine. Anal Chim Acta 2019; 1086:55-65. [DOI: 10.1016/j.aca.2019.07.073] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 01/30/2023]
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20
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Schebeliski AH, Lima D, Marchesi LFQP, Calixto CMF, Pessôa CA. Preparation and characterization of a carbon nanotube-based ceramic electrode and its potential application at detecting sulfonamide drugs. J APPL ELECTROCHEM 2018. [DOI: 10.1007/s10800-018-1171-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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21
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Novel carbon black-cobalt phthalocyanine nanocomposite as sensing platform to detect organophosphorus pollutants at screen-printed electrode. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2015.11.069] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Chen G, Miao M, Hoptroff M, Fei X, Collins LZ, Jones A, Janssen HG. Sensitive and simultaneous quantification of zinc pyrithione and climbazole deposition from anti-dandruff shampoos onto human scalp. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1003:22-6. [DOI: 10.1016/j.jchromb.2015.09.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 09/07/2015] [Accepted: 09/09/2015] [Indexed: 11/15/2022]
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23
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Application of phthalocyanines in flow- and sequential-injection analysis and microfluidics systems: A review. Talanta 2015; 139:75-88. [DOI: 10.1016/j.talanta.2015.02.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 02/10/2015] [Accepted: 02/17/2015] [Indexed: 11/18/2022]
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24
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Makarova NM, Kulapina EG. Planar electrodes based on carbon nanotubes for the potentiometric determination of homologous sodium alkyl sulfates. JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1134/s1061934815070096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Song L, Zhu L, Liu Y, Zhou X, Shi H. A disposable cobalt-based phosphate sensor based on screen printing technology. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5127-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Screen-printed carbon electrodes modified with cobalt phthalocyanine for selective sulfur detection in cosmetic products. Int J Mol Sci 2011; 12:3810-20. [PMID: 21747708 PMCID: PMC3131592 DOI: 10.3390/ijms12063810] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Revised: 05/31/2011] [Accepted: 06/02/2011] [Indexed: 11/17/2022] Open
Abstract
Cobalt phthalocyanine (CoPc) films were deposited on the surface of a screen-printed carbon electrode using a simple drop coating method. The cyclic voltammogram of the resulting CoPc modified screen-printed electrode (CoPc/SPE) prepared under optimum conditions shows a well-behaved redox couple due to the (Co(I)/Co(II)) system. The CoPc/SPE surface demonstrates excellent electrochemical activity towards the oxidation of sulfur in a 0.01 mol·L(-1) NaOH. A linear calibration curve with the detection limit (D(L), S/N = 3) of 0.325 mg·L(-1) was achieved by CoPc/SPE coupled with flow injection analysis of the sulfur concentration ranging from 4 to 1120 mg·L(-1). The precision of the system response was evaluated (3.60% and 3.52% RSD for 12 repeated injections), in the range of 64 and 480 mg·L(-1) sulfur. The applicability of the method was successfully demonstrated in a real sample analysis of sulfur in anti-acne creams, and good recovery was obtained. The CoPc/SPE displayed several advantages in sulfur determination including easy fabrication, high stability, and low cost.
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29
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Adekunle AS, Ozoemena KI. Electrocatalytic Oxidation of Diethylaminoethanethiol and Hydrazine at Single-walled Carbon Nanotubes Modified with Prussian Blue Nanoparticles. ELECTROANAL 2010. [DOI: 10.1002/elan.201000289] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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30
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Zong W, Liu R, Sun F, Wang M, Zhang P, Liu Y, Tian Y. Cyclic voltammetry: a new strategy for the evaluation of oxidative damage to bovine insulin. Protein Sci 2010; 19:263-8. [PMID: 20027620 DOI: 10.1002/pro.313] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Research on protein oxidative damage may give insight into the nature of protein functions and pathological conditions. In this work, the oxidative damage of bovine insulin on Au electrode was investigated by cyclic voltammetry (CV). The experimental results show that there are two anodic peaks for the oxidative damage of bovine insulin, which arise from the oxidation of the exposed disulfide bond S--S(CYS7A,CYS7B), forming sulfenic acid RSOH (1.20 V, vs. SCE), sulfinic acid RSO(2)H and sulfonic acid RSO(3)H (1.35 V, vs. SCE). These in vitro findings not only demonstrate the applicability of CV in simulating/evaluating the oxidative damage of nonredox proteins but also find two promising candidates (two anodic peaks) for measuring insulin.
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Affiliation(s)
- Wansong Zong
- School of Environmental Science and Engineering, Shandong University, Jinan 250100, People's Republic of China
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31
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Kumar AS, Sornambikai S, Gayathri P, Zen JM. Selective covalent immobilization of catechol on activated carbon electrodes. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2009.12.016] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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Yamada H, Shirai A, Kato K, Kimura J, Ichiba H, Yajima T, Fukushima T. Development of a Quinazoline-Based Chelating Ligand for Zinc Ion and Its Application to Validation of a Zinc-Ion-Coordinated Compound. Chem Pharm Bull (Tokyo) 2010; 58:875-8. [DOI: 10.1248/cpb.58.875] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hiroshi Yamada
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University
| | - Akina Shirai
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University
| | - Keisuke Kato
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences, Toho University
| | - Junko Kimura
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University
| | - Hideaki Ichiba
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University
| | - Takehiko Yajima
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University
| | - Takeshi Fukushima
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University
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Sehlotho N, Griveau S, Ruillé N, Boujtita M, Nyokong T, Bedioui F. Electro-catalyzed oxidation of reduced glutathione and 2-mercaptoethanol by cobalt phthalocyanine-containing screen printed graphite electrodes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2008. [DOI: 10.1016/j.msec.2007.10.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Bones J, Thomas KV, Paull B. Improved method for the determination of zinc pyrithione in environmental water samples incorporating on-line extraction and preconcentration coupled with liquid chromatography atmospheric pressure chemical ionisation mass spectrometry. J Chromatogr A 2006; 1132:157-64. [PMID: 16934278 DOI: 10.1016/j.chroma.2006.07.068] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2006] [Revised: 07/24/2006] [Accepted: 07/28/2006] [Indexed: 11/30/2022]
Abstract
A method has been developed for the determination of zinc pyrithione (ZnPT) in environmental water samples using monolithic reversed-phase silica columns for rapid on-line large volume solid phase extraction in tandem with on-line matrix removal using sacrificial strong anion exchange (SAX) columns. This is coupled with reversed-phase liquid chromatography with atmospheric pressure chemical ionisation mass spectrometric detection. Limits of detection in spiked river water samples, using a 200 mL preconcentration volume, were determined as 18 ng L(-1), with a limit of quantitation of 62 ng L(-1). The percentage recovery from spiked river water was found to be 72+/-9 (n=3 extractions), whilst overall method precision, following 10 repeat complete analyses was found to be 27% RSD at 1 microg L(-1). Linearity was determined over the concentration range of 0.25-10 microg L(-1) and the calculated regression coefficient was R(2)=0.9802. The method was used to investigate the environmental fate of zinc pyrithione in waters and its partition coefficient between sediment and water phases.
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Affiliation(s)
- Jonathan Bones
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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35
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Laser etched carbon fibre composites: Disposable detectors for flow analysis applications. Electrochem commun 2006. [DOI: 10.1016/j.elecom.2006.05.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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