Glucose Oxidase-Immobilized Benzoquinone-Mixed Carbon Paste Electrode with Pre-Minigrid

Ikeda, Tokuji; Katasho, Isao; Senda, Mitsugi

doi:10.2116/analsci.1.455

Cited by 32 publications

(14 citation statements)

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“…[18][19][20] Especially, the PPy/quinone film is of analytical importance for the application in electrocatalysis and enzyme sensors. [21][22][23] In connection with our study, charge transfer of pyrrole copolymers substituted by anthraquinone, phenothiazine, or anthracene moieties has been reported. [24][25][26] The electrical conductance of PPy films doping with various anthraquinone and naphthalene sulfonates appears to be very well correlated to the number of sulfonate groups attached, with the highest conductance attained at one sulfonate group per dopant molecule.…”

supporting

confidence: 66%

Electrochemical and Spectroelectrochemical Characterization of Some Polypyrrole/Anthraquinone Sulfonate Films

Ahmed¹,

Nagaoka

Ogra

1998

ANAL. SCI.

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Conducting polymer films incorporating electroactive species have been used for sensor applications, and the redox properties have been utilized in charge-storage devices such as super-capacitors and batteries. [1][2][3][4][5][6] The optical properties associated with redox switching in some conducting polymers have been studied for possible use in electrochromic devices with high coloration efficiencies.7-14 Polypyrrole (PPy) is one of the most useful conducting materials, since it polymerizes easily, forms a membrane readily and has high conductivity and chemical stability. [15][16][17] Moreover, since it is easy to combine PPy with other anionic molecules, many functional composites with various properties have been investigated. [18][19][20] Especially, the PPy/quinone film is of analytical importance for the application in electrocatalysis and enzyme sensors. [21][22][23] In connection with our study, charge transfer of pyrrole copolymers substituted by anthraquinone, phenothiazine, or anthracene moieties has been reported. [24][25][26] The electrical conductance of PPy films doping with various anthraquinone and naphthalene sulfonates appears to be very well correlated to the number of sulfonate groups attached, with the highest conductance attained at one sulfonate group per dopant molecule. [27][28][29] Hepel has shown that the electrochemical quartz crystal microbalance (EQCM) technique can be used successfully to examine the doping level and the ion transport rate. 30In this research, we prepared several composite films consisting of polypyrrole and quinone sulfonates in aqueous solution by using electropolymerization techniques. FTIR spectral measurements and elemental analysis of PPy/9,10-anthraquinone-2-sulfonate (AQS -) revealed that the quinone sulfonates were incorporated in the polypyrrole matrix. Cyclic voltammetry and spectroelectrochemistry indicated the formation of diand trianions of AQS -during the reduction of the film. Further, it was found that the PPy/AQS -could function as a cation-exchanger at electrode potentials below about -0.3 V vs. Ag/AgCl. Experimental MaterialsPyrrole (Wako Chemicals Co.) was used without further purification. All quinones used here were reagent grade and were purified by vacuum sublimation or recrystallization when impurities were found in voltammograms. Tetraethylammonium perchlorate (TEAP) was dried in a vacuum and stored over P 2 O 5 . Milli-Q water was used throughout our experiments. Reagent grade dimethylsulfoxide (DMSO) and dimethylformamide (DMF) were used as received from Wako Chemicals. Equipment and proceduresGlassy carbon (GC) electrodes (Tokai, grade GC-20, diameter 3 mm) were polished with fine alumina (60 mm) and then sonicated for 5 min. Gold plated semitransparent plastic films (FM-1 Courtaulds Performance Films, USA, 1.75 cm 2 ) were used as We have fabricated composite films of polypyrrole/quinone sulfonate via electropolymerization. The FTIR investigation indicated the incorporation of quinone sulfonate in the polypyrrole (PPy) film to com...

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confidence: 66%

Electrochemical and Spectroelectrochemical Characterization of Some Polypyrrole/Anthraquinone Sulfonate Films

Ahmed¹,

Nagaoka

Ogra

1998

ANAL. SCI.

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“…For example, by tuning the thickness and composition of redox hydrogels [190,191], by using enzymatic scavenging systems, [192][193][194][195] or by tuning electrodes geometry and size. [196][197][198][199] But, most of the efforts have been essentially directed to the design of new redox mediators or the improvement of enzymes immobilization to capture the FADH2 electrons more rapidly than O2. Enzyme engineering is an alternative strategy to decrease the O2 sensitivity of GOx but has only be used in homogeneous solution to decipher the oxidative half-reaction mechanism.…”

Section: Decreasing the Competitive Effect Of O2mentioning

confidence: 99%

Engineering glucose oxidase for bioelectrochemical applications

Mano

2019

Bioelectrochemistry

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There is still a growing interest in developing glucose sensors using glucose oxidase.Since 2012, over 1000 papers are published every year, while efficient commercial sensors exist on the market. Among those glucose sensors, few have been thought and well-engineered and do not solve the problems associated with glucose oxidase; among which the O2 sensitivity of the enzyme or the competition between O2 and redox mediators for GOx's electrons. Enzyme engineering has been employed to solve those issues but screening GOx in homogeneous solution with O2 as an electron acceptor is not suitable. Very few reports describe the specific reengineering of GOx for electrochemical applications and are the subject of this review. It starts with a brief presentation of glucose oxidase and presents the recent progress in glucose oxidase reengineering by highlighting the kind of engineering/mutations performed to increase its electron transfer rate to electrode surfaces and, to decrease its O2 sensitivity. In addition, the review highlights the need to develop new screening methods involving electrochemical probing, essential to develop the next generation of glucose sensors; specific to glucose, O2 independent, biocompatible and stable over 2 weeks.

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“…v) Regarding the first carbon paste-based biosensors, the oldest configurations were developed in Japan [70,71]. Because the carbon paste material in both constructions served solely as one of possible substrates for further modification or coverage with additional membrane, the priority in designing of the first real CP-biosensor which had fully utilized the advantages of the carbon paste matrix for intimate enzyme housing, can be attributed to Polish scientists [72], who have proposed such a mixture with embedded glucose oxidase for amperometric detection of glucose.…”

Section: The First Modifications Of Carbon Pastementioning

confidence: 99%

“…After ii) rather dull period in the late seventies, the first prototypes of chemically [67,68] and biologically [72] modified CPEs came to the fore, initiating iii) the first boom in the eighties and resulting in the appearance of carbon paste electrodes over the whole world. Activities of research groups in America (e.g., [111,199,213,216]) and Europe [72,89,197,240,324] continued; nevertheless, iv) the up-coming nineties spawned new individualities and teams in China [16,92,157,250,289,302], Japan [70,71,124,178], Korea [93,100], former U.S.S.R [11,269,274], Spain [87,89,117,293] or Brazil [325]), whose contributions to the field have become soon as significant as those of the already existing research centers. The following years can be characterized in a similar way; however, with particular emphasis on the increasing dominance of CPbiosensors [14] through the nineties and beyond the commencement of a new millennium [18,20].…”

Section: Fifty Years Of Carbon Paste Across the Globementioning

confidence: 99%

Carbon Paste Electrodes in Facts, Numbers, and Notes: A Review on the Occasion of the 50‐Years Jubilee of Carbon Paste in Electrochemistry and Electroanalysis

et al. 2008

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This article reviews the electrochemistry and electroanalytical applications of carbon paste-based electrodes, sensors, and detectors on the occasion of the half-of-century anniversary since the discovery of carbon paste. The review (with 333 references) has been prepared in the form of a retrospective compilation presenting the field by means of various facts, notes, data, surveys, and summaries, including numerous rarities or curiosities that illustrate the individual achievements and milestones. Carbon paste-based electrodes are discussed in their entirety by covering all important areas of the field, starting from basic characterization of carbon paste as the electrode material, via its typical physicochemical and electrochemical properties or specific features, up to a representative documentation of their applicability in electrochemical and electroanalytical measurements.

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Glucose Oxidase-Immobilized Benzoquinone-Mixed Carbon Paste Electrode with Pre-Minigrid

Cited by 32 publications

References 1 publication

Electrochemical and Spectroelectrochemical Characterization of Some Polypyrrole/Anthraquinone Sulfonate Films

Electrochemical and Spectroelectrochemical Characterization of Some Polypyrrole/Anthraquinone Sulfonate Films

Engineering glucose oxidase for bioelectrochemical applications

Carbon Paste Electrodes in Facts, Numbers, and Notes: A Review on the Occasion of the 50‐Years Jubilee of Carbon Paste in Electrochemistry and Electroanalysis

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