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Stozhko NY, Bukharinova MA, Khamzina EI, Tarasov AV. Electrochemical Properties of Phytosynthesized Gold Nanoparticles for Electrosensing. SENSORS 2021; 22:s22010311. [PMID: 35009854 PMCID: PMC8749774 DOI: 10.3390/s22010311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/24/2021] [Accepted: 12/29/2021] [Indexed: 11/25/2022]
Abstract
Gold nanoparticles are widely used in electrosensing. The current trend is to phytosynthesize gold nanoparticles (phyto-AuNPs) on the basis of the “green” chemistry approach. Phyto-AuNPs are biologically and catalytically active, stable and biocompatible, which opens up broad perspectives in a variety of applications, including tactile, wearable (bio)sensors. However, the electrochemistry of phytosynthesized nanoparticles is not sufficiently studied. This work offers a comprehensive study of the electrochemical activity of phyto-AuNPs depending on the synthesis conditions. It was found that with an increase in the aliquot of the plant extract, its antioxidant activity (AOA) and pH, the electrochemical activity of phyto-AuNPs grows, which is reflected in the peak potential decrease and an increase in the peak current of phyto-AuNPs electrooxidation. It has been shown that AOA is an important parameter for obtaining phyto-AuNPs with desired properties. Electrodes modified with phyto-AuNPs have demonstrated better analytical characteristics than electrodes with citrate AuNPs in detecting uric and ascorbic acids under model conditions. The data about the phyto-AuNPs’ electrochemistry may be useful for creating highly effective epidermal sensors with good biocompatibility.
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Affiliation(s)
- Natalia Yu. Stozhko
- Department of Physics and Chemistry, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia;
- Correspondence:
| | - Maria A. Bukharinova
- Scientific and Innovation Center of Sensor Technologies, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia; (M.A.B.); (A.V.T.)
| | - Ekaterina I. Khamzina
- Department of Physics and Chemistry, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia;
- Scientific and Innovation Center of Sensor Technologies, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia; (M.A.B.); (A.V.T.)
| | - Aleksey V. Tarasov
- Scientific and Innovation Center of Sensor Technologies, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia; (M.A.B.); (A.V.T.)
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Housaindokht MR, Janati‐Fard F, Ashraf N. Recent advances in applications of surfactant‐based voltammetric sensors. J SURFACTANTS DETERG 2021. [DOI: 10.1002/jsde.12541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mohammad Reza Housaindokht
- Department of Chemistry, Faculty of Sciences Ferdowsi University of Mashhad Mashhad Iran
- Research and Technology Center of Biomolecules, Faculty of Sciences Ferdowsi University of Mashhad Mashhad Iran
| | - Fatemeh Janati‐Fard
- Research and Technology Center of Biomolecules, Faculty of Sciences Ferdowsi University of Mashhad Mashhad Iran
| | - Narges Ashraf
- Department of Chemistry, Faculty of Sciences Ferdowsi University of Mashhad Mashhad Iran
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Brainina KZ, Bukharinova MA, Stozhko NY, Sokolkov SV, Tarasov AV, Vidrevich MB. Electrochemical Sensor Based on a Carbon Veil Modified by Phytosynthesized Gold Nanoparticles for Determination of Ascorbic Acid. SENSORS 2020; 20:s20061800. [PMID: 32214016 PMCID: PMC7146419 DOI: 10.3390/s20061800] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/11/2020] [Accepted: 03/20/2020] [Indexed: 12/31/2022]
Abstract
An original voltammetric sensor (Au-gr/CVE) based on a carbon veil (CV) and phytosynthesized gold nanoparticles (Au-gr) was developed for ascorbic acid (AA) determination. Extract from strawberry leaves was used as source of antioxidants (reducers) for Au-gr phytosynthesis. The sensor was characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy and electrochemical methods. Optimal parameters of AA determination were chosen. The sensor exhibits a linear response to AA in a wide concentration range (1 μM–5.75 mM) and a limit of detection of 0.05 μM. The developed sensor demonstrated a high intra-day repeatability of 1 μM AA response (RSD = 1.4%) and its stability during six weeks, selectivity of AA determination toward glucose, sucrose, fructose, citric, tartaric and malic acids. The proposed sensor based on Au-gr provides a higher sensitivity and a lower limit of AA detection in comparison with the sensor based on gold nanoparticles synthesized by the Turkevich method. The sensor was successfully applied for the determination of AA content in fruit juices without samples preparation. The recovery of 99%–111% and RSD no more than 6.8% confirm the good reproducibility of the juice analysis results. A good agreement with the potentiometric titration data was obtained. A correlation (r = 0.9867) between the results of AA determination obtained on the developed sensor and integral antioxidant activity of fruit juices was observed.
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Affiliation(s)
- Khiena Z. Brainina
- Department of Physics and Chemistry, Research and Innovation Center of Sensor Technologies, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia; (K.Z.B.); (M.A.B.); (S.V.S.); (A.V.T.); (M.B.V.)
- Department of Analytical Chemistry, Ural Federal University, Mira St. 19, 620002 Yekaterinburg, Russia
| | - Maria A. Bukharinova
- Department of Physics and Chemistry, Research and Innovation Center of Sensor Technologies, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia; (K.Z.B.); (M.A.B.); (S.V.S.); (A.V.T.); (M.B.V.)
| | - Natalia Yu. Stozhko
- Department of Physics and Chemistry, Research and Innovation Center of Sensor Technologies, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia; (K.Z.B.); (M.A.B.); (S.V.S.); (A.V.T.); (M.B.V.)
- Correspondence:
| | - Sergey V. Sokolkov
- Department of Physics and Chemistry, Research and Innovation Center of Sensor Technologies, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia; (K.Z.B.); (M.A.B.); (S.V.S.); (A.V.T.); (M.B.V.)
| | - Aleksey V. Tarasov
- Department of Physics and Chemistry, Research and Innovation Center of Sensor Technologies, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia; (K.Z.B.); (M.A.B.); (S.V.S.); (A.V.T.); (M.B.V.)
| | - Marina B. Vidrevich
- Department of Physics and Chemistry, Research and Innovation Center of Sensor Technologies, Ural State University of Economics, 8 Marta St., 62, 620144 Yekaterinburg, Russia; (K.Z.B.); (M.A.B.); (S.V.S.); (A.V.T.); (M.B.V.)
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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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Little CA, Batchelor‐McAuley C, Ngamchuea K, Lin C, Young NP, Compton RG. Coupled Optical and Electrochemical Probing of Silver Nanoparticle Destruction in a Reaction Layer. ChemistryOpen 2018; 7:370-380. [PMID: 29872612 PMCID: PMC5974555 DOI: 10.1002/open.201800048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Indexed: 12/27/2022] Open
Abstract
The oxidation of silver nanoparticles is induced to occur near to, but not at, an electrode surface. This reaction at a distance from the electrode is studied through the use of dark-field microscopy, allowing individual nanoparticles and their reaction with the electrode product to be visualized. The oxidation product diffuses away from the electrode and oxidizes the nanoparticles in a reaction layer, resulting in their destruction. The kinetics of the silver nanoparticle solution-phase reaction is shown to control the length scale over which the nanoparticles react. In general, the new methodology offers a route by which nanoparticle reactivity can be studied close to an electrode surface.
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Affiliation(s)
- Christopher A. Little
- Physical and Theoretical Chemistry LaboratoryOxford UniversitySouth Parks RoadOxfordOX1 3QZUnited Kingdom
| | | | - Kamonwad Ngamchuea
- Physical and Theoretical Chemistry LaboratoryOxford UniversitySouth Parks RoadOxfordOX1 3QZUnited Kingdom
| | - Chuhong Lin
- Physical and Theoretical Chemistry LaboratoryOxford UniversitySouth Parks RoadOxfordOX1 3QZUnited Kingdom
| | - Neil P. Young
- Physical and Theoretical Chemistry LaboratoryOxford UniversitySouth Parks RoadOxfordOX1 3QZUnited Kingdom
| | - Richard G. Compton
- Physical and Theoretical Chemistry LaboratoryOxford UniversitySouth Parks RoadOxfordOX1 3QZUnited Kingdom
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Stozhko N, Bukharinova M, Galperin L, Brainina K. A Nanostructured Sensor Based on Gold Nanoparticles and Nafion for Determination of Uric Acid. BIOSENSORS-BASEL 2018; 8:bios8010021. [PMID: 29509718 PMCID: PMC5872069 DOI: 10.3390/bios8010021] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/26/2018] [Accepted: 03/03/2018] [Indexed: 11/16/2022]
Abstract
The paper discusses the mechanism of uric acid (UA) electrooxidation occurring on the surface of gold nanoparticles. It has been shown that the electrode process is purely electrochemical, uncomplicated with catalytic stages. The nanoeffects observed as the reduction of overvoltage and increased current of UA oxidation have been described. These nanoeffects are determined by the size of particles and do not depend on the method of particle preparation (citrate and "green" synthesis). The findings of these studies have been used to select a modifier for carbon screen-printed electrode (CSPE). It has been stated that CSPE modified with gold nanoparticles (5 nm) and 2.5% Nafion (Nf) may serve as non-enzymatic sensor for UA determination. The combination of the properties of nanoparticles and Nafion as a molecular sieve at the selected pH 5 phosphate buffer solution has significantly improved the resolution of the sensor compared to unmodified CSPE. A nanostructured sensor has demonstrated good selectivity in determining UA in the presence of ascorbic acid. The detection limit of UA is 0.25 μM. A linear calibration curve has been obtained over a range of 0.5-600 μM. The 2.5%Nf/Au(5nm)/CSPE has been successfully applied to determining UA in blood serum and milk samples. The accuracy and reliability of the obtained results have been confirmed by a good correlation with the enzymatic spectrophotometric analysis (R² = 0.9938) and the "added-found" technique (recovery close to 100%).
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Affiliation(s)
- Natalia Stozhko
- Ural State University of Economics, 8 Marta St., 62, Yekaterinburg 620144, Russia.
| | - Maria Bukharinova
- Ural State University of Economics, 8 Marta St., 62, Yekaterinburg 620144, Russia.
| | - Leonid Galperin
- Ural Federal University, Mira St., 19, Yekaterinburg 620002, Russia.
| | - Khiena Brainina
- Ural State University of Economics, 8 Marta St., 62, Yekaterinburg 620144, Russia.
- Ural Federal University, Mira St., 19, Yekaterinburg 620002, Russia.
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