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Lee DH, Lee WY, Kim J. Introducing Nanoscale Electrochemistry in Small-Molecule Detection for Tackling Existing Limitations of Affinity-Based Label-Free Biosensing Applications. J Am Chem Soc 2023; 145:17767-17778. [PMID: 37527497 DOI: 10.1021/jacs.3c04458] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Electrochemical sensing techniques for small molecules have progressed in many applications, including disease diagnosis and prevention as well as monitoring of health conditions. However, affinity-based detection for low-abundance small molecules is still challenging due to the imbalance in target-to-receptor size ratio as well as the lack of a highly sensitive signal transducing method. Herein, we introduced nanoscale electrochemistry in affinity-based small molecule detection by measuring the change of quantum electrochemical properties with a nanoscale artificial receptor upon binding. We prepared a nanoscale molecularly imprinted composite polymer (MICP) for cortisol by electrochemically copolymerizing β-cyclodextrin and redox-active methylene blue to offer a high target-to-receptor size ratio, thus realizing "bind-and-read" detection of cortisol as a representative target small molecule, along with extremely high sensitivity. Using the quantum conductance measurement, the present MICP-based sensor can detect cortisol from 1.00 × 10-12 to 1.00 × 10-6 M with a detection limit of 3.93 × 10-13 M (S/N = 3), which is much lower than those obtained with other electrochemical methods. Moreover, the present MICP-based cortisol sensor exhibited reversible cortisol sensing capability through a simple electrochemical regeneration process without cumbersome steps of washing and solution change, which enables "continuous detection". In situ detection of cortisol in human saliva following circadian rhythm was carried out with the present MICP-based cortisol sensor, and the results were validated with the LC-MS/MS method. Consequently, this present cortisol sensor based on nanoscale MICP and quantum electrochemistry overcomes the limitations of affinity-based biosensors, opening up new possibilities for sensor applications in point-of-care and wearable healthcare devices.
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Affiliation(s)
- Don Hui Lee
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
| | - Won-Yong Lee
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
| | - Jayoung Kim
- Department of Medical Engineering, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
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2
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Sunon P, Ngamchuea K. Methylene blue molecularly imprinted polymer for melatonin determination in urine and saliva samples. Mikrochim Acta 2023; 190:348. [PMID: 37566143 DOI: 10.1007/s00604-023-05930-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 07/25/2023] [Indexed: 08/12/2023]
Abstract
A highly sensitive and rapid electrochemical sensor was developed for detecting melatonin using a molecularly imprinted polymer (MIP) with methylene blue as the functional monomer and melatonin as the template. The MIP was synthesized via a simple electropolymerization process that did not require an initiating reagent. The sensor demonstrated good selectivity for melatonin against common interferences such as lactate, cytosine, cytidine, urea, ascorbic acid, creatine, creatinine, serotonin, and tryptophan. Melatonin detection was achieved at a potential of 0.60 V vs. Ag/AgCl with a sensitivity of 138.8 ± 4.7 µA µM‒1 in the linear range 0.097 - 200 µM and a limit of detection of 29 nM (3SB/m). The sensor exhibited excellent reproducibility and repeatability for both within (intra) and between (inter) electrodes (%RSD < 3% for n = 3). The sensor was applied to authentic urine and saliva samples with recoveries of 103 ± 1% and 102 ± 1%, respectively.
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Affiliation(s)
- Pachanuporn Sunon
- School of Chemistry, Institute of Science, Suranaree University of Technology, 111 University Avenue, Suranaree, Muang, Nakhon Ratchasima, 30000, Thailand
- Institute of Research and Development, Suranaree University of Technology, 111 University Avenue, Suranaree, Muang, Nakhon Ratchasima, 30000, Thailand
| | - Kamonwad Ngamchuea
- School of Chemistry, Institute of Science, Suranaree University of Technology, 111 University Avenue, Suranaree, Muang, Nakhon Ratchasima, 30000, Thailand.
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3
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Cruz-Pacheco AF, Quinchia J, Orozco J. Nanostructured poly(thiophene acetic acid)/Au/poly(methylene blue) interface for electrochemical immunosensing of p53 protein. Mikrochim Acta 2023; 190:136. [PMID: 36920574 DOI: 10.1007/s00604-023-05683-5] [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: 12/09/2022] [Accepted: 01/30/2023] [Indexed: 03/16/2023]
Abstract
A poly(thiophene acetic acid)/Au/poly(methylene blue) nanostructured interface was electrochemically assembled step-by-step on screen-printed carbon electrodes (SPCE) for label-free detection of p53 protein. The initial electrical conductive properties of the polymeric interface were increased with an additional layer of poly(methylene blue) electropolymerized in the presence of gold nanoparticles. The nano-immunosensing architecture was prepared by covalent immobilization of anti-p53 antibodies as bioreceptors through the poly(thiophene acetic acid) moieties. The nano-immunosensor assembly was extensively characterized by ultraviolet-visible spectrophotometry, dynamic and electrophoretic light scattering, scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, atomic force microscopy, cyclic voltammetry, and electrochemical impedance spectroscopy. Under optimal conditions, p53 was specifically and selectively detected by square wave voltammetry in a linear range between 1 and 100 ng mL-1 with a limit of detection of 0.65 ng mL-1. In addition, the electrochemical nano-immunosensor detected p53 in spiked human serum samples and colorectal cancer cell lysates, and the results were validated with a standard spectrophotometric method using a paired samples t test, which did not exhibit significant differences between both methods. The resultant p53 nano-immunosensor is simple to assemble, robust, and has the potential for point-of-care biomarker detection applications.
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Affiliation(s)
- Andrés F Cruz-Pacheco
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, 050010, Medellín, Colombia
| | - Jennifer Quinchia
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, 050010, Medellín, Colombia
| | - Jahir Orozco
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, 050010, Medellín, Colombia.
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4
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Development of Polydiphenylamine@Electrochemically Reduced Graphene Oxide Electrode for the D-Penicillamine Sensor from Human Blood Serum Samples Using Amperometry. Polymers (Basel) 2023; 15:polym15030577. [PMID: 36771878 PMCID: PMC9921737 DOI: 10.3390/polym15030577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 01/24/2023] Open
Abstract
D-penicillamine (PA) is a sulfur group-containing drug prescribed for various health issues, but overdoses have adverse effects. Therefore, regular, selective, and sensitive sensing is essential to reduce the need for further treatment. In this study, diphenylamine (DPA) was electropolymerized in an aqueous acidic medium. The PA detection sensitivity, selectivity, and limit of detection were enhanced by electropolymerizing DPA on an electrochemically reduced graphene oxide (ERGO)/glassy carbon (GC) surface. The formation of p-DPA and ERGO was investigated using various techniques. The as-prepared p-DPA@ERGO/GC revealed the excellent redox-active (N-C to N=C) sites of p-DPA. The p-DPA@ERGO/GC electrode exhibited excellent electrochemical sensing ability towards PA determination because of the presence of the -NH-functional moiety and effective interactions with the -SH group of PA. The p-DPA@ERGO/GC exhibited a high surface coverage of 9.23 × 10-12 mol cm-2. The polymer-modified p-DPA@ERGO/GC electrode revealed the amperometric determination of PA concentration from the 1.4 to 541 μM wide range and the detection limit of 0.10 μM. The real-time feasibility of the developed p-DPA@ERGO/GC electrode was tested with a realistic PA finding in human blood serum samples and yielded a good recovery of 97.5-101.0%, confirming the potential suitability in bio-clinical applications.
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Graphite sheets modified with poly(methylene blue) films: A cost-effective approach for the electrochemical sensing of the antibiotic nitrofurantoin. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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6
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Zambrano-Intriago LA, Amorim CG, Rodríguez-Díaz JM, Araújo AN, Montenegro MCBSM. Challenges in the design of electrochemical sensor for glyphosate-based on new materials and biological recognition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 793:148496. [PMID: 34182449 DOI: 10.1016/j.scitotenv.2021.148496] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/08/2021] [Accepted: 06/13/2021] [Indexed: 06/13/2023]
Abstract
Glyphosate (GLY) is the main ingredient in the weed killer Roundup and the most widely used pesticide in the world. Studies of the harmful effects of GLY on human health began to become more wide-ranging after 2015. GLY is listed by the International Agency for Research on Cancer (IARC) as a carcinogenic hazard to humans. Moreover, GLY has the property to complex with transition metals and are stable for long periods, being considered a high-risk element for different matrices, such as environmental (soil and water) and food (usually genetically modified crops). Since that, it was noticed an increment in the development of new analytical methods for its determination in different matrices like food, environmental and biological fluids. Noteworthy, the application of electrochemical techniques for downstream detection sparked interest due to the ability to minimize or eliminate the use of polluting chemicals, using simple and affordable equipment. This work aims to review the contribution of the electroanalytical methods for the determination of GLY in different food and environmental matrices. Parameters such as the electrochemical transduction techniques based on the electrical measurement signals, receptor materials for electrodes preparation, and the detection mechanisms are described in this review. The literature review shows that the electrochemical sensors are powerful detection system that can be improved by their design and by their portability to fulfil the needs of the GLY determination in laboratory benches, or even in situ analysis.
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Affiliation(s)
- Luis Angel Zambrano-Intriago
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, Porto 4050-313, Portugal; Laboratorio de Análisis Químicos y Biotecnológicos, Instituto de Investigación, Universidad Técnica de Manabí, Portoviejo, Ecuador.
| | - Célia G Amorim
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, Porto 4050-313, Portugal.
| | - Joan Manuel Rodríguez-Díaz
- Laboratorio de Análisis Químicos y Biotecnológicos, Instituto de Investigación, Universidad Técnica de Manabí, Portoviejo, Ecuador; Departamento de Procesos Químicos, Facultad de Ciencias Matemáticas, Físicas y Químicas, Universidad Técnica de Manabí, Portoviejo, Ecuador; Programa de Pós-graduação em Engenharia Química, Universidade Federal da Paraíba, João Pessoa, Brazil.
| | - Alberto N Araújo
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, Porto 4050-313, Portugal.
| | - Maria C B S M Montenegro
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, Porto 4050-313, Portugal.
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7
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Mezhuev YO, Vorobev IY, Plyushchii IV, Krivoborodov EG, Artyukhov AA, Motyakin MV, Luss AL, Ionova IS, Kovarskii AL, Derevnin IA, Dyatlov VA, Alekperov RA, Toropygin IY, Volkov MA, Shtilman MI, Korshak YV. Chemical Oxidative Polymerization of Methylene Blue: Reaction Mechanism and Aspects of Chain Structure. Polymers (Basel) 2021; 13:polym13132188. [PMID: 34209367 PMCID: PMC8271652 DOI: 10.3390/polym13132188] [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: 06/14/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 11/16/2022] Open
Abstract
The kinetic regularities of the initial stage of chemical oxidative polymerization of methylene blue under the action of ammonium peroxodisulfate in an aqueous medium have been established by the method of potentiometry. It was shown that the methylene blue polymerization mechanism includes the stages of chain initiation and growth. It was found that the rate of the initial stage of the reaction obeys the kinetic equation of the first order with the activation energy 49 kJ × mol-1. Based on the proposed mechanism of oxidative polymerization of methylene blue and the data of MALDI, EPR, and IR spectroscopy methods, the structure of the polymethylene blue chain is proposed. It has been shown that polymethylene blue has a metallic luster, and its electrical conductivity is probably the result of conjugation over extended chain sections and the formation of charge transfer complexes. It was found that polymethylene blue is resistant to heating up to a temperature of 440 K and then enters into exothermic transformations without significant weight loss. When the temperature rises above 480 K, polymethylene blue is subject to endothermic degradation and retains 75% of its mass up to 1000 K.
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Affiliation(s)
- Yaroslav O. Mezhuev
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
- Correspondence: ; Tel.: +7-499-972-4808
| | - Igor Y. Vorobev
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
| | - Ivan V. Plyushchii
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
| | - Efrem G. Krivoborodov
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
| | - Alexander A. Artyukhov
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
| | - Mikhail V. Motyakin
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia; (M.V.M.); (A.L.K.)
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Anna L. Luss
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
| | - Irina S. Ionova
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Alexander L. Kovarskii
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia; (M.V.M.); (A.L.K.)
| | - Igor A. Derevnin
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
| | - Valerie A. Dyatlov
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
| | - Ruslan A. Alekperov
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
| | - Ilya Y. Toropygin
- V.N. Orekhovich Research Institute of Biomedical Chemistry, Russian Academy of Medical Sciences, 119832 Moscow, Russia;
| | - Mikhail A. Volkov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, 119071 Moscow, Russia;
| | - Mikhail I. Shtilman
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
| | - Yuri V. Korshak
- Department of Biomaterials, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia; (I.Y.V.); (I.V.P.); (E.G.K.); (A.A.A.); (A.L.L.); (I.A.D.); (V.A.D.); (R.A.A.); (M.I.S.); (Y.V.K.)
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Esokkiya A, Sudalaimani S, Sanjeev Kumar K, Sampathkumar P, Suresh C, Giribabu K. Poly(methylene blue)-Based Electrochemical Platform for Label-Free Sensing of Acrylamide. ACS OMEGA 2021; 6:9528-9536. [PMID: 33869933 PMCID: PMC8047665 DOI: 10.1021/acsomega.0c06315] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/22/2021] [Indexed: 05/03/2023]
Abstract
The present work reports the electrochemical sensing of acrylamide (AM) using a poly(methylene blue)-modified glassy carbon electrode (PMB/GCE) where PMB functions as an electrochemical reporter. PMB was prepared by electrochemical polymerization of methylene blue. Electrochemical sensing of AM was facilitated by the interaction between AM and PMB. Further the interaction between AM and PMB was investigated using ultraviolet-visible (UV-vis) spectroscopy and Raman analysis. The surface morphology was confirmed by atomic force microscopy (AFM) and field emission scanning electron microscopy (FESEM) analyses. PMB/GCE was further characterized by X-ray photoelectron spectroscopy (XPS), and the electrochemical performance was assessed using cyclic voltammetry and differential pulse voltammetry. Cyclic voltammetry analysis showed a decrease in current at the redox center of PMB upon addition of AM. The association constant and binding number of AM with PMB/GCE were calculated using differential pulse voltammetry and found to be 8.9 × 106 M-1 and 0.64 (∼1), respectively. The results indicated a strong interaction of AM on the PMB/GCE surface. Further, chronocoulometry analysis of PMB/GCE in the presence of AM showed a decrease in charge due to the interaction of AM with PMB. Under optimized conditions, PMB/GCE exhibited a decrease in current proportional to the concentration of AM in the range of 0.025-16 μM with sensitivity and detection limit 0.252 μA nM-1 and 0.13 nM, respectively. Real sample analysis was carried out by the standard addition method using the solution extracted from potato chips.
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Affiliation(s)
- Anthonysamy Esokkiya
- Electrodics
and Electrocatalysis Division, Central Electrochemical
Research Institute (CSIR-CECRI), Karaikudi, Tamil Nadu 630003, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sudalaimuthu Sudalaimani
- Electrodics
and Electrocatalysis Division, Central Electrochemical
Research Institute (CSIR-CECRI), Karaikudi, Tamil Nadu 630003, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kannan Sanjeev Kumar
- Electrodics
and Electrocatalysis Division, Central Electrochemical
Research Institute (CSIR-CECRI), Karaikudi, Tamil Nadu 630003, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Prakasam Sampathkumar
- Electrodics
and Electrocatalysis Division, Central Electrochemical
Research Institute (CSIR-CECRI), Karaikudi, Tamil Nadu 630003, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Chinnathambi Suresh
- Electrodics
and Electrocatalysis Division, Central Electrochemical
Research Institute (CSIR-CECRI), Karaikudi, Tamil Nadu 630003, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Krishnan Giribabu
- Electrodics
and Electrocatalysis Division, Central Electrochemical
Research Institute (CSIR-CECRI), Karaikudi, Tamil Nadu 630003, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- ,
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Shrivastava S, Kumar A, Verma N, Chen B, Chang C. Voltammetric Detection of Aqueous Glyphosate on a Copper and Poly(Pyrrole)‐electromodified Activated Carbon Fiber. ELECTROANAL 2020. [DOI: 10.1002/elan.202060408] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Surabhi Shrivastava
- Department of Chemical Engineering Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Arun Kumar
- Department of Chemical Engineering Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Nishith Verma
- Department of Chemical Engineering Indian Institute of Technology Kanpur Kanpur 208016 India
- Center for Environmental Science and Engineering Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Bor‐Yann Chen
- Department of Chemical and Materials Engineering National I–Lan University I-Lan 26047 Taiwan
| | - Chang‐Tang Chang
- Department of Environmental Engineering National I–Lan University I-Lan 26047 Taiwan
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10
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Okazaki T, Orii T, Tan SY, Watanabe T, Taguchi A, Rahman FA, Kuramitz H. Electrochemical Long Period Fiber Grating Sensing for Electroactive Species. Anal Chem 2020; 92:9714-9721. [PMID: 32551577 DOI: 10.1021/acs.analchem.0c01062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present an electrochemical long period fiber grating (LPFG) sensor for electroactive species with an optically transparent electrode. The sensor was fabricated by coating indium tin oxide onto the surface of LPFG using a polygonal barrel-sputtering method. LPFG was produced by an electric arc-induced technique. The sensing is based on change in the detection of electron density on the electrode surface during potential application and its reduction by electrochemical redox of analytes. Four typical electroactive species of methylene blue, hexaammineruthenium(III), ferrocyanide, and ferrocenedimethanol were used to investigate the sensor performance. The concentrations of analytes were determined by the modulation of the potential as the change in transmittance around the resonance band of LPFG. The sensitivity of the sensor, particularly to methylene blue, was high, and the sensor responded to a wide concentration range of 0.001 mM to 1 mM.
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Affiliation(s)
- Takuya Okazaki
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan.,Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1, Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan
| | - Tatsuya Orii
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Shin-Yinn Tan
- Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 39100 Kampar, Malaysia
| | - Tomoaki Watanabe
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1, Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan
| | - Akira Taguchi
- Hydrogen Isotope Research Center, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Faidz A Rahman
- Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Sungai Long, 43000 Selangor, Malaysia
| | - Hideki Kuramitz
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
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Nxele SR, Oluwole DO, Nyokong T. Electrocatalytic activity of a push pull Co(II) phthalocyanine in the presence of graphitic carbon nitride quantum dots. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134978] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Zhang G, Xu B, Chong H, Wei W, Wang C, Wang G. Effect of glyphosate on X-ray diffraction of copper films prepared by electrochemical deposition. RSC Adv 2019; 9:14016-14023. [PMID: 35519352 PMCID: PMC9064028 DOI: 10.1039/c9ra01385g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 04/23/2019] [Indexed: 11/21/2022] Open
Abstract
In the process of electrochemical deposition of metals, the additives can directly affect the final morphology of the metal. Using glyphosate as the additive, copper thin films were prepared by the electrochemical deposition method from a CuSO4 aqueous solution under a specific voltage. The copper thin films were grown on the surface of the indium tin oxide (ITO) film, which was used as the working electrode in a classical three-electrode cell. Glyphosate combined with the copper ion to form a complex, and hindered further reduction and crystallization of the copper ions. The results indicated that the peak intensities of the X-ray diffraction peaks decreased with the increase in the glyphosate concentrations, which can be used as a basis for quantitative detection. The method is simple and highly sensitive. Quantitative probing of glyphosate by combining electrochemical deposition and X-ray diffraction methods.![]()
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Affiliation(s)
- Gaomin Zhang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Bin Xu
- Testing Center
- Yangzhou University
- Yangzhou 225009
- China
| | - Hui Chong
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Wenxian Wei
- Testing Center
- Yangzhou University
- Yangzhou 225009
- China
| | - Chengyin Wang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
- Testing Center
| | - Guoxiu Wang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
- Centre for Clean Energy Technology
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13
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Shalini Devi KS, Senthil Kumar A. A blood-serum sulfide selective electrochemical sensor based on a 9,10-phenanthrenequinone-tethered graphene oxide modified electrode. Analyst 2018; 143:3114-3123. [PMID: 29868662 DOI: 10.1039/c8an00756j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The sulfide ion and its associated species (H2S and HS-) are widely referred to as toxic chemicals. However, at concentrations of ∼10-100 μM, it serves as a neurotransmitter and signaling agent in biological systems. Abnormalities in blood serum sulfide can be an indication of several diseases, including diabetes, wherein there is a significant reduction in the sulfide ion concentration (<10 μM). Herein, we wish report a 9,10-phenanthrenequinone (PQn) tethered graphene oxide (GO) modified glassy carbon electrode (GCE/GO@PQn) for the highly selective and stable electrocatalytic oxidation and flow injection analysis (FIA) of sulfide ions. The electrode exhibits a detection range of 1-100 μM, and is suitable for the common biochemical interference-free detection of blood serum sulfide in pH 7 phosphate buffer solution. The modified electrode was found to be tolerant of interfering chemicals such as cysteine, uric acid, ascorbic acid, nitrate, glucose, hydrogen peroxide, nitrate, nitrite and dissolved oxygen. This is unlike conventional redox mediator modified electrodes, which all show marked interference with the above-mentioned chemicals during sulfide detection. A constructed FIA calibration plot (applied potential, Eapp = 0.15 V vs. Ag/AgCl) was linear in the sulfide concentration ranges of 1-100 μM (1st region) and 300 μM-5 mM (2nd region) with a detection limit value of 700 nM. The selective and quick FIA of sulfide ions in three diabetic patient blood samples along with a control was demonstrated as a proof of concept.
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Affiliation(s)
- K S Shalini Devi
- Nano and Bioelectrochemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632 014, India.
| | - Annamalai Senthil Kumar
- Nano and Bioelectrochemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632 014, India. and Carbon dioxide Research and Green Technology Centre, Vellore Institute of Technology, Vellore-632 014, India and Institute of Biochemical and Biomedical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan, Republic of China
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14
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Braun WA, Horn BC, Hoehne L, Stülp S, Rosa MBDA, Hilgemann M. Poly(methylene blue)-modified electrode for indirect electrochemical sensing of OH radicals and radical scavengers. AN ACAD BRAS CIENC 2017; 89:1381-1389. [PMID: 28813104 DOI: 10.1590/0001-3765201720160833] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 03/24/2017] [Indexed: 02/08/2023] Open
Abstract
A new modified electrode for indirect sensing of OH· and radical scavengers was described. The electrochemical polymerization of methylene blue in aqueous solutions and the properties of the resulting films on a glassy carbon electrode were carried out using cyclic voltammetry. A surface coverage of 1.11 × 109mol cm2 was obtained, revealing a complete surface coverage of the polymeric film on the electrode surface. OH· was able to destroy the poly(methylene blue) film by exposure to a Fenton solution. The loss of the electrochemical signal of the residual polymeric film attached to the electrode surface was related to the extent of its dissolution. The applicability of the sensor was demonstrated by evaluating the OH radical scavenging effect on different concentrations of ascorbic acid. The obtained radical scavenging capacity were 31.4%, 55.7%, 98.9% and 65.7% for the ascorbic acid concentrations of 5, 10, 30 and 50 mM, respectively.
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Affiliation(s)
- Walter A Braun
- Centro de Ciências Exatas e Tecnológicas, Centro Universitário UNIVATES, Avenida Avelino Talini, 171, 95914-014 Lajeado, RS, Brazil
| | - Bruna C Horn
- Centro de Ciências Exatas e Tecnológicas, Centro Universitário UNIVATES, Avenida Avelino Talini, 171, 95914-014 Lajeado, RS, Brazil
| | - Lucélia Hoehne
- Centro de Ciências Exatas e Tecnológicas, Centro Universitário UNIVATES, Avenida Avelino Talini, 171, 95914-014 Lajeado, RS, Brazil
| | - Simone Stülp
- Centro de Ciências Exatas e Tecnológicas, Centro Universitário UNIVATES, Avenida Avelino Talini, 171, 95914-014 Lajeado, RS, Brazil
| | - Marcelo B DA Rosa
- Universidade Federal de Santa Maria, Departamento de Química, Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
| | - Maurício Hilgemann
- Centro de Ciências Exatas e Tecnológicas, Centro Universitário UNIVATES, Avenida Avelino Talini, 171, 95914-014 Lajeado, RS, Brazil
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15
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Fabrication and characterization of poly 2-napthol orange film modified electrode and its application to selective detection of dopamine. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3604-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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16
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Gorle DB, Kulandainathan MA. Electrochemical sensing of dopamine at the surface of a dopamine grafted graphene oxide/poly(methylene blue) composite modified electrode. RSC Adv 2016. [DOI: 10.1039/c5ra25541d] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
We prepared a reduced graphene oxide/poly(methylene blue) composite on a glassy carbon electrode surface and electrografted dopamine onto the surface for the sensing of dopamine.
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Affiliation(s)
- Demudu Babu Gorle
- Electrochemical Process Engineering Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi
- India
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17
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Giribabu K, Suresh R, Manigandan R, Munusamy S, Kumar SP, Muthamizh S, Narayanan V. Nanomolar determination of 4-nitrophenol based on a poly(methylene blue)-modified glassy carbon electrode. Analyst 2014; 138:5811-8. [PMID: 23897002 DOI: 10.1039/c3an00941f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A poly(methylene blue)-modified glassy carbon electrode (PMB/GCE) was fabricated by electropolymerisation of methylene blue on a GCE and further utilized to investigate the electrochemical determination of 4-nitrophenol (4-NP) by cyclic voltammetry (CV), differential pulse voltammetry and chronocoulometry. The morphology of the PMB on GCE was examined using a scanning electron microscope (SEM). An oxidation peak of 4-NP at the PMB modified electrode was observed at 0.28 V, and in the case of bare GCE, no oxidation peak was observed, which indicates that PMB/GCE exhibits a remarkable effect on the electrochemical determination of 4-NP. Due to this remarkable effect of PMB/GCE, a sensitive and simple electrochemical method was proposed for the determination of 4-NP. The effect of the scan rate and pH was investigated to determine the optimum conditions at which the PMB/GCE exhibits a higher sensitivity with a lower detection limit. Moreover, kinetic parameters such as the electron transfer number, proton transfer number and standard heterogeneous rate constant were calculated. Under optimum conditions, the oxidation current of 4-NP is proportional to its concentration in the range of 15-250 nM with a correlation coefficient of 0.9963. The detection limit was found to be 90 nM (S/N = 3). The proposed method based on PMB/GCE is simple, easy and cost effective. To further confirm its possible application, the proposed method was successfully used for the determination of 4-NP in real water samples with recoveries ranging from 97% to 101.6%. The interference due to sodium, potassium, calcium, magnesium, copper, zinc, iron, sulphate, carbonate, chloride, nitrate and phosphate was found to be almost negligible.
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Affiliation(s)
- Krishnamoorthy Giribabu
- Department of Inorganic Chemistry, University of Madras, Guindy Maraimalai Campus, Chennai-600025, India.
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