Glucose oxidation using oxygen resistant pyranose-2-oxidase for biofuel cell applications
Glucose oxidation using oxygen resistant pyranose-2-oxidase for biofuel cell applications
In this study, the effect of oxygen on glucose oxidation using Glucose Oxidase (GOx) and oxygen resistant Pyranose-2-Oxidase (P2O) has been studied. Enzyme solutions with ferrocene carboxylic acid (FcCOOH) as electron mediator were tested with glassy carbon electrode (GCE) under air and nitrogen saturated conditions in a three electrode electrochemical cell system. Electrochemical characterization of enzymes has been achieved in solution by using cyclic voltammetry (CV), linear sweep voltammetry (LSV) and chronoamperometry (CA). In the presence of glucose, CV and LSV results show increasing anodic peak current and decreasing cathodic peak current with increasing glucose concentrations, which reflects the ferrocene-mediated bioelectrocatalysis of glucose oxidation. The experiments with CA show enhanced stability with oxygen resistant P2O where GOx loses 30 % of its current density in the presence of oxygen after 3 hours. These results indicate that P2O, a promising enzyme with no oxygen reactivity and long stability, which can be used in enzymatic biofuel cell applications as an alternative to GOx.
367-372
Sahin, Samet
7a2bcc56-24f3-4502-86d2-5a6faa36f44c
Wongnate, Thanyaporn
b5f92cba-7626-4da4-b367-29fb6f73290b
Chaiyen, Pimchai
0f5d310e-f669-41f9-9170-f72e0d7cee6d
Yu, Eileen H.
28e47863-4b50-4821-b80b-71fb5a2edef2
2014
Sahin, Samet
7a2bcc56-24f3-4502-86d2-5a6faa36f44c
Wongnate, Thanyaporn
b5f92cba-7626-4da4-b367-29fb6f73290b
Chaiyen, Pimchai
0f5d310e-f669-41f9-9170-f72e0d7cee6d
Yu, Eileen H.
28e47863-4b50-4821-b80b-71fb5a2edef2
Sahin, Samet, Wongnate, Thanyaporn, Chaiyen, Pimchai and Yu, Eileen H.
(2014)
Glucose oxidation using oxygen resistant pyranose-2-oxidase for biofuel cell applications.
Chemical Engineering Transactions, 41 (Special Issue), .
(doi:10.3303/CET1441062).
Abstract
In this study, the effect of oxygen on glucose oxidation using Glucose Oxidase (GOx) and oxygen resistant Pyranose-2-Oxidase (P2O) has been studied. Enzyme solutions with ferrocene carboxylic acid (FcCOOH) as electron mediator were tested with glassy carbon electrode (GCE) under air and nitrogen saturated conditions in a three electrode electrochemical cell system. Electrochemical characterization of enzymes has been achieved in solution by using cyclic voltammetry (CV), linear sweep voltammetry (LSV) and chronoamperometry (CA). In the presence of glucose, CV and LSV results show increasing anodic peak current and decreasing cathodic peak current with increasing glucose concentrations, which reflects the ferrocene-mediated bioelectrocatalysis of glucose oxidation. The experiments with CA show enhanced stability with oxygen resistant P2O where GOx loses 30 % of its current density in the presence of oxygen after 3 hours. These results indicate that P2O, a promising enzyme with no oxygen reactivity and long stability, which can be used in enzymatic biofuel cell applications as an alternative to GOx.
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Published date: 2014
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Publisher Copyright:
Copyright © 2014, AIDIC Servizi S.r.l.
Venue - Dates:
10th European Symposium on Electrochemical Engineering, ESEE 2014, , Chia, Sardinia, Italy, 2014-09-28 - 2014-10-02
Identifiers
Local EPrints ID: 498865
URI: http://eprints.soton.ac.uk/id/eprint/498865
ISSN: 2283-9216
PURE UUID: 2460536c-923e-497f-9afb-8c2130cf306e
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Date deposited: 04 Mar 2025 17:48
Last modified: 05 Mar 2025 03:17
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Author:
Samet Sahin
Author:
Thanyaporn Wongnate
Author:
Pimchai Chaiyen
Author:
Eileen H. Yu
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