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Muthukutty B, Ganesamurthi J, Chen TW, Chen SM, Yu J, Liu X. A novel high-performance electrocatalytic determination platform for voltammetric sensing of eugenol in acidic media using pyrochlore structured lanthanum stannate nanoparticles. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.10.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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2
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Kaya SI, Cetinkaya A, Ozkan SA. Carbon Nanomaterial-Based Drug Sensing Platforms Using State-of-the-
Art Electroanalytical Techniques. CURR ANAL CHEM 2022. [DOI: 10.2174/1573411016999200802024629] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Currently, nanotechnology and nanomaterials are considered as the most popular and outstanding
research subjects in scientific fields ranging from environmental studies to drug analysis. Carbon nanomaterials such as
carbon nanotubes, graphene, carbon nanofibers etc. and non-carbon nanomaterials such as quantum dots, metal
nanoparticles, nanorods etc. are widely used in electrochemical drug analysis for sensor development. Main aim of drug
analysis with sensors is developing fast, easy to use and sensitive methods. Electroanalytical techniques such as
voltammetry, potentiometry, amperometry etc. which measure electrical parameters such as current or potential in an
electrochemical cell are considered economical, highly sensitive and versatile techniques.
Methods:
Most recent researches and studies about electrochemical analysis of drugs with carbon-based nanomaterials were
analyzed. Books and review articles about this topic were reviewed.
Results:
The most significant carbon-based nanomaterials and electroanalytical techniques were explained in detail. In
addition to this; recent applications of electrochemical techniques with carbon nanomaterials in drug analysis was expressed
comprehensively. Recent researches about electrochemical applications of carbon-based nanomaterials in drug sensing were
given in a table.
Conclusion:
Nanotechnology provides opportunities to create functional materials, devices and systems using
nanomaterials with advantageous features such as high surface area, improved electrode kinetics and higher catalytic
activity. Electrochemistry is widely used in drug analysis for pharmaceutical and medical purposes. Carbon nanomaterials
based electrochemical sensors are one of the most preferred methods for drug analysis with high sensitivity, low cost and
rapid detection.
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Affiliation(s)
- S. Irem Kaya
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06560, Ankara,Turkey
| | - Ahmet Cetinkaya
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06560, Ankara,Turkey
| | - Sibel A. Ozkan
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06560, Ankara,Turkey
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3
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Shi Z, Xia L, Li G, Hu Y. Platinum nanoparticles-embedded raspberry-liked SiO 2 for the simultaneous electrochemical determination of eugenol and methyleugenol. Mikrochim Acta 2021; 188:241. [PMID: 34212233 DOI: 10.1007/s00604-021-04892-0] [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: 04/27/2021] [Accepted: 06/11/2021] [Indexed: 11/29/2022]
Abstract
Based on platinum nanoparticle-embedded raspberry-liked SiO2, a sensitive and selective electrochemical sensor was developed for simultaneous determination of eugenol (EU) and methyleugenol (MEU). Raspberry-liked SiO2 (RL-SiO2) was characterized with open pores on the surface, which can be used as a path for utilizing the inner space fully. So, platinum nanoparticles (Pt NPs) could be embedded in the inner and outer surface of RL-SiO2. As a carrier, RL-SiO2 not only avoided the agglomeration of the Pt NPs but also improved the catalytic performance. Therefore, the prepared Pt NPs@RL-SiO2/GCE exhibited excellent electrocatalytic activity for simultaneous determination of EU and MEU; the linearity ranges were 0.50 ~ 60 μmol/L for EU at a working potential of 0.65 V (vs. saturated calomel electrode) and 0.50 ~ 50 μmol/L for MEU at a working potential of 1.10 V; the detection limits were 0.12 μmol/L and 0.16 μmol/L (S/N=3); and the relative standard deviations (RSDs) were 3.2% and 4.5%, respectively. In addition, Pt NPs@RL-SiO2/GCE was successfully applied to the analysis of fish samples; the obtained recoveries were between 92.0 and 107%. Notably, the results conducted on samples were highly consistent with those obtained from high-performance liquid chromatography. It can be concluded that the study provided a simple method for simultaneous electrochemical determination of EU and MEU in fish samples. Schematic illustration of the preparation of RL-SiO2@Pt NPs/GCE for simultaneous determination of eugenol and methyleugenol in fish samples.
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Affiliation(s)
- Zhaoxia Shi
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Ling Xia
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Gongke Li
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Yufei Hu
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
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4
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Fadillah G, Wicaksono WP, Fatimah I, Saleh TA. A sensitive electrochemical sensor based on functionalized graphene oxide/SnO2 for the determination of eugenol. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105353] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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5
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Wada R, Takahashi S, Muguruma H. New perspective on ECE mechanism of monohydroxycinnamic acid oxidation with carbon nanotube electrode. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136964] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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6
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Lopez JC, Zon MA, Fernández H, Granero AM. Development of an enzymatic biosensor to determine eugenol in dental samples. Talanta 2020; 210:120647. [PMID: 31987210 DOI: 10.1016/j.talanta.2019.120647] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 11/17/2022]
Abstract
A GCE/CRGO-βCD's/ADA-SPE/AuNPs biosensor was successfully developed to determine eugenol in dental samples. The optimal conditions to construct the biosensor were obtained from an experimental design based on the response surfaces methodology. The GCE/CRGO-βCD/ADA-SPE/AuNPs biosensor exhibited a very good analytical performance for the quantification of eugenol. Thus, it shows a linear range between 1.3 × 10-8 and 1 × 10-5 mol L-1, with a sensitivity of (5.3 ± 0.3) x 10-3 A mol-1 L. The limits of detection and quantification were 4 × 10-9 mol L-1 and 1.3 × 10-8 mol L-1, respectively. Biosensors had an intraday and inter day reproducibility of 5% and 8%, respectively. The repeatability was of 3%, and the stability was 21 days (a decrease of 30% in current responses was observed after the fourth week). Recovery studies were performed in order to validate the proposed method. Recovery percentages were between 94 and 108%. A value of the apparent Michaellis-Menten constant, KMapp, of 3.1 × 10-6 mol L-1 was obtained using both Lineweaver-Burk and Eadi-Hofstee methods.
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Affiliation(s)
- Jimena Claudia Lopez
- Departamento de Química, Grupo GEANA, Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS), Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N(o) 3, 5800, Río Cuarto, Argentina.
| | - María Alicia Zon
- Departamento de Química, Grupo GEANA, Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS), Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N(o) 3, 5800, Río Cuarto, Argentina.
| | - Héctor Fernández
- Departamento de Química, Grupo GEANA, Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS), Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N(o) 3, 5800, Río Cuarto, Argentina.
| | - Adrian Marcelo Granero
- Departamento de Química, Grupo GEANA, Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS), Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N(o) 3, 5800, Río Cuarto, Argentina.
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7
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Murtada K, Moreno V. Nanomaterials-based electrochemical sensors for the detection of aroma compounds - towards analytical approach. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113988] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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8
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Guo S, Zhang C, Yang M, Zhou Y, Bi C, Lv Q, Ma N. A facile and sensitive electrochemical sensor for non-enzymatic glucose detection based on three-dimensional flexible polyurethane sponge decorated with nickel hydroxide. Anal Chim Acta 2020; 1109:130-139. [PMID: 32252896 DOI: 10.1016/j.aca.2020.02.037] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/12/2020] [Accepted: 02/18/2020] [Indexed: 01/22/2023]
Abstract
A novel three-dimensional nickel hydroxide/polyurethane (Ni(OH)2/PU) electrode was prepared by a simple and environmentally friendly method and used for non-enzymatic detection of glucose. The Ni(OH)2/PU electrode was obtained by one-pot hydrothermal method of loading nickel hydroxide on a cheap, easily available and flexible polyurethane sponge, which is facile and energy-saving. The porous structure of the polyurethane sponge provides a large surface area and a rich electrochemical active site for the electrode, which is beneficial to the oxidation reaction of glucose on the surface of the electrode with Ni(OH)2. The Ni(OH)2/PU electrode structure was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The cyclic voltammetry test was used to study the catalytic performance of Ni(OH)2/PU electrode for oxidation of glucose and the chronoamperometry was used to investigate the detection performance of Ni(OH)2/PU electrode on glucose. The results indicate that this non-enzymatic glucose sensor had a high sensitivity of 2845 μA mM-1 cm-2, a low detection limit of 0.32 μM (S/N = 3), a detection range of 0.01-2.06 mM and response time of less than 5 s. In addition, the Ni(OH)2/PU electrode had excellent selectivity, reproducibility and stability and also exhibited effective detection of glucose in fetal bovine serum (FBS). In summary, Ni(OH)2/PU electrode had broad prospects as an excellent candidate for non-enzymatic glucose sensors. The study also opens up a facile and energy-saving approach for preparing three-dimensional (3D) functionalized polymer electrode via hydrothermal method as electrochemical sensors.
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Affiliation(s)
- Shixi Guo
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Chunhong Zhang
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China.
| | - Ming Yang
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Yanli Zhou
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Changlong Bi
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Qingtao Lv
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Ning Ma
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
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9
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Decoration of graphene oxide with copper selenide in supercritical carbon dioxide medium as a novel approach for electrochemical sensing of eugenol in various samples. J Supercrit Fluids 2019. [DOI: 10.1016/j.supflu.2019.104597] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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11
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Ziyatdinova GK, Budnikov HC. Spice Antioxidants as Objects of Analytical Chemistry. JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1134/s106193481810012x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Brainina K, Stozhko N, Bukharinova M, Vikulova E. Nanomaterials: Electrochemical Properties and Application in Sensors. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2018-8050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The unique properties of nanoparticles make them an extremely valuable modifying material, being used in electrochemical sensors. The features of nanoparticles affect the kinetics and thermodynamics of electrode processes of both nanoparticles and redox reactions occurring on their surface. The paper describes theoretical background and experimental studies of these processes. During the transition from macro- to micro- and nanostructures, the analytical characteristics of sensors modify. These features of metal nanoparticles are related to their size and energy effects, which affects the analytical characteristics of developed sensors. Modification of the macroelectrode with nanoparticles and other nanomaterials reduces the detection limit and improves the degree of sensitivity and selectivity of measurements. The use of nanoparticles as transducers, catalytic constituents, parts of electrochemical sensors for antioxidant detection, adsorbents, analyte transporters, and labels in electrochemical immunosensors and signal-generating elements is described.
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13
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Yildiz G, Aydogmus Z, Cinar ME, Senkal F, Ozturk T. Electrochemical oxidation mechanism of eugenol on graphene modified carbon paste electrode and its analytical application to pharmaceutical analysis. Talanta 2017; 173:1-8. [PMID: 28602182 DOI: 10.1016/j.talanta.2017.05.056] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/15/2017] [Accepted: 05/20/2017] [Indexed: 01/29/2023]
Abstract
Electrochemical properties of eugenol were investigated on a graphene modified carbon paste electrode (CPE) by using voltammetric methods, which exhibited a well-defined irreversible peak at about 0.7V vs Ag/AgCl, NaCl (3M) in Britton-Robinson buffer at pH 2.0. Mechanism of the electrochemical reaction of eugenol was studied by performing density functional theory (DFT) computations and mass spectroscopic analysis. (CPCM:water)-wB97XD/aug-cc-PVTZ//(CPCM:water)-wB97XD/6-31G(d) level calculations predicted that the formation of product P2, possessing a para-quinoid structure, is preferred rather than the product P1, suggested in the literature, having an ortho-quinoid system. Determination of eugenol in a pharmaceutical sample was realized in the light of the electrochemical findings, and a validated voltammetric method for quantitative analysis of eugenol in a pharmaceutical formulation was proposed. The differential pulse voltammogram (DPV) peak currents were found to be linear in the concentration range of 1.0 × 10-7 to 1.7 × 10-5M. The limit of detection (LOD) and the limit of quantification (LOQ) were obtained to be 7.0 × 10-9 and 2.3 × 10-8, respectively.
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Affiliation(s)
- Gulcemal Yildiz
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey.
| | - Zeynep Aydogmus
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Beyazıt, 34116 Istanbul, Turkey
| | - M Emin Cinar
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey; Department Chemie-Biologie, OC1, Universität Siegen, Adolf-Reichwein-Str., 57068 Siegen, Germany
| | - Filiz Senkal
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Turan Ozturk
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey; Chemistry Group Laboratories, TUBITAK UME, PO Box 54, 41470 Gebze, Kocaeli, Turkey.
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14
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Li J, Liu Y, Kim E, March JC, Bentley WE, Payne GF. Electrochemical reverse engineering: A systems-level tool to probe the redox-based molecular communication of biology. Free Radic Biol Med 2017; 105:110-131. [PMID: 28040473 DOI: 10.1016/j.freeradbiomed.2016.12.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 12/06/2016] [Accepted: 12/20/2016] [Indexed: 12/20/2022]
Abstract
The intestine is the site of digestion and forms a critical interface between the host and the outside world. This interface is composed of host epithelium and a complex microbiota which is "connected" through an extensive web of chemical and biological interactions that determine the balance between health and disease for the host. This biology and the associated chemical dialogues occur within a context of a steep oxygen gradient that provides the driving force for a variety of reduction and oxidation (redox) reactions. While some redox couples (e.g., catecholics) can spontaneously exchange electrons, many others are kinetically "insulated" (e.g., biothiols) allowing the biology to set and control their redox states far from equilibrium. It is well known that within cells, such non-equilibrated redox couples are poised to transfer electrons to perform reactions essential to immune defense (e.g., transfer from NADH to O2 for reactive oxygen species, ROS, generation) and protection from such oxidative stresses (e.g., glutathione-based reduction of ROS). More recently, it has been recognized that some of these redox-active species (e.g., H2O2) cross membranes and diffuse into the extracellular environment including lumen to transmit redox information that is received by atomically-specific receptors (e.g., cysteine-based sulfur switches) that regulate biological functions. Thus, redox has emerged as an important modality in the chemical signaling that occurs in the intestine and there have been emerging efforts to develop the experimental tools needed to probe this modality. We suggest that electrochemistry provides a unique tool to experimentally probe redox interactions at a systems level. Importantly, electrochemistry offers the potential to enlist the extensive theories established in signal processing in an effort to "reverse engineer" the molecular communication occurring in this complex biological system. Here, we review our efforts to develop this electrochemical tool for in vitro redox-probing.
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Affiliation(s)
- Jinyang Li
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Yi Liu
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Eunkyoung Kim
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - John C March
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Gregory F Payne
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA.
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15
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Idris AO, Mafa JP, Mabuba N, Arotiba OA. Nanogold modified glassy carbon electrode for the electrochemical detection of arsenic in water. RUSS J ELECTROCHEM+ 2017. [DOI: 10.1134/s1023193517020082] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Ziyatdinova G, Ziganshina E, Romashkina S, Budnikov H. Highly Sensitive Amperometric Sensor for Eugenol Quantification Based on CeO2Nanoparticles and Surfactants. ELECTROANAL 2017. [DOI: 10.1002/elan.201600719] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Guzel Ziyatdinova
- Analytical Chemistry Department, A.M. Butlerov Institute of Chemistry; Kazan Federal University, Kremlyevskaya, 18; Kazan 420008 Russian Federation tel: +7-843-2337736 fax: +7-843-2387901
| | - Endzhe Ziganshina
- Analytical Chemistry Department, A.M. Butlerov Institute of Chemistry; Kazan Federal University, Kremlyevskaya, 18; Kazan 420008 Russian Federation tel: +7-843-2337736 fax: +7-843-2387901
| | - Svetlana Romashkina
- Analytical Chemistry Department, A.M. Butlerov Institute of Chemistry; Kazan Federal University, Kremlyevskaya, 18; Kazan 420008 Russian Federation tel: +7-843-2337736 fax: +7-843-2387901
| | - Herman Budnikov
- Analytical Chemistry Department, A.M. Butlerov Institute of Chemistry; Kazan Federal University, Kremlyevskaya, 18; Kazan 420008 Russian Federation tel: +7-843-2337736 fax: +7-843-2387901
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17
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Verma A, Jain R. (1-Butyl-3-methylimidazolium Hexafluorophosphate) Based Sensor for Quantification of Eugenol Antioxidant. ELECTROANAL 2016. [DOI: 10.1002/elan.201600228] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alka Verma
- School of Studies in Chemistry; Jiwaji University; Gwalior (M.P.) - 474011 India
| | - Rajeev Jain
- School of Studies in Chemistry; Jiwaji University; Gwalior (M.P.) - 474011 India
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19
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Albayrak İ, Erkal A, Yavuz S, Kariper İA, Ender Mülazımoğlu İ, Üstündağ Z. Isophtalic acid terminated graphene oxide modified glassy carbon nanosensor electrode: Cd2+and Bi3+analysis in tap water and milk samples. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2016. [DOI: 10.1080/10942912.2016.1213743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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20
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Yang L, Zhao F, Zeng B. Electrochemical determination of eugenol using a three-dimensional molecularly imprinted poly (p-aminothiophenol-co-p-aminobenzoic acids) film modified electrode. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.05.167] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Lin X, Ni Y, Kokot S. Electrochemical and bio-sensing platform based on a novel 3D Cu nano-flowers/layered MoS2 composite. Biosens Bioelectron 2016; 79:685-92. [DOI: 10.1016/j.bios.2015.12.072] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 12/04/2015] [Accepted: 12/20/2015] [Indexed: 02/05/2023]
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22
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Differential pulse voltammetric determination of eugenol at a pencil graphite electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 60:156-162. [DOI: 10.1016/j.msec.2015.11.031] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/30/2015] [Accepted: 11/11/2015] [Indexed: 12/22/2022]
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23
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Lee ME, Kim E, Liu Y, March JC, Bentley WE, Payne GF. Rapid and repeatable redox cycling of an insoluble dietary antioxidant: electrochemical analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:9760-9768. [PMID: 25265934 DOI: 10.1021/jf503479d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
There are many unresolved questions concerning the health benefits of dietary antioxidants due in part to the complexity of the materials and mechanisms of action. We applied a new electrochemical method and report new observations for one of the richest sources of dietary antioxidants. We observed that the insoluble fraction of clove is redox-active and can be rapidly and repeatedly switched between oxidized and reduced states. Also, the radical scavenging antioxidant properties of insoluble clove are largely independent of this reversible redox activity, which is similar to observations made with the natural phenolic melanin. In contrast to melanin, insoluble clove was observed to have little pro-oxidant activity (as measured by H2O2 generation) irrelevant to whether it was poised in an oxidized or reduced state. These results suggest that dietary antioxidants, even when insoluble and nonabsorbed, can undergo important redox interactions in the intestinal tract.
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Affiliation(s)
- Morgan E Lee
- Fischell Department of Bioengineering, University of Maryland , College Park, Maryland 20742, United States
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