Freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell

We investigate glucose oxidase-laccase EFC employing simplified system design – freely suspended enzymes in a membraneless, single chamber cell. The highly specific enzyme reaction mechanisms permit such system design. The EFC comprises nickel mesh as the oxidative current collector and a carbon-bas...

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Main Authors:	Asrul, Nurrisa, Othman, Raihan, Yahya, Muhd Zu Azhan, Mohd. Salleh, Hamzah, Yusof, Faridah, Ahmad, Abdul Aziz
Format:	Article
Language:	English
Published:	Trans Tech Publications, Switzerland 2012
Subjects:	TJ807 Renewable energy sources TP248.13 Biotechnology TP250 Industrial electrochemistry
Online Access:	http://irep.iium.edu.my/24233/ http://irep.iium.edu.my/24233/ http://irep.iium.edu.my/24233/ http://irep.iium.edu.my/24233/1/AMR.512-515.1499.pdf

id	iium-24233
recordtype	eprints
spelling	iium-242332012-06-21T06:45:31Z http://irep.iium.edu.my/24233/ Freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell Asrul, Nurrisa Othman, Raihan Yahya, Muhd Zu Azhan Mohd. Salleh, Hamzah Yusof, Faridah Ahmad, Abdul Aziz TJ807 Renewable energy sources TP248.13 Biotechnology TP250 Industrial electrochemistry We investigate glucose oxidase-laccase EFC employing simplified system design – freely suspended enzymes in a membraneless, single chamber cell. The highly specific enzyme reaction mechanisms permit such system design. The EFC comprises nickel mesh as the oxidative current collector and a carbon-based air electrode as the reductive current collector, enclosed in acrylic casing of 3 ml volumetric capacity. The air electrode also serves as the ambient oxygen diffusion site to continuously feed oxygen into the system. The anolyte consists of glucose oxidase enzyme (10 U), glucose substrate (200 mM) and FAD co-enzyme (3.8 mM), while the catholyte consists of laccase enzyme (10 U) and syringaldazine substrate (216 µM). The cell employing citrate buffer electrolyte of pH 5 exhibits the best characteristics i.e. an open circuit voltage (OCV) around 960 mV and able to sustain continuous discharge current of 30µA for about 31.75 hours. The cell possesses volumetric power density of 286 microwatt/cm3 which is considered comparable to biocatalytic energy systems employing much more complicated design. Trans Tech Publications, Switzerland 2012-05-14 Article PeerReviewed application/pdf en http://irep.iium.edu.my/24233/1/AMR.512-515.1499.pdf Asrul, Nurrisa and Othman, Raihan and Yahya, Muhd Zu Azhan and Mohd. Salleh, Hamzah and Yusof, Faridah and Ahmad, Abdul Aziz (2012) Freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell. Advanced Materials Research, 512/15. pp. 1499-1502. ISSN 1022-6680 http://www.scientific.net/AMR.512-515.1499 10.4028/www.scientific.net/AMR.512-515.1499
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ807 Renewable energy sources TP248.13 Biotechnology TP250 Industrial electrochemistry
spellingShingle	TJ807 Renewable energy sources TP248.13 Biotechnology TP250 Industrial electrochemistry Asrul, Nurrisa Othman, Raihan Yahya, Muhd Zu Azhan Mohd. Salleh, Hamzah Yusof, Faridah Ahmad, Abdul Aziz Freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell
description	We investigate glucose oxidase-laccase EFC employing simplified system design – freely suspended enzymes in a membraneless, single chamber cell. The highly specific enzyme reaction mechanisms permit such system design. The EFC comprises nickel mesh as the oxidative current collector and a carbon-based air electrode as the reductive current collector, enclosed in acrylic casing of 3 ml volumetric capacity. The air electrode also serves as the ambient oxygen diffusion site to continuously feed oxygen into the system. The anolyte consists of glucose oxidase enzyme (10 U), glucose substrate (200 mM) and FAD co-enzyme (3.8 mM), while the catholyte consists of laccase enzyme (10 U) and syringaldazine substrate (216 µM). The cell employing citrate buffer electrolyte of pH 5 exhibits the best characteristics i.e. an open circuit voltage (OCV) around 960 mV and able to sustain continuous discharge current of 30µA for about 31.75 hours. The cell possesses volumetric power density of 286 microwatt/cm3 which is considered comparable to biocatalytic energy systems employing much more complicated design.
format	Article
author	Asrul, Nurrisa Othman, Raihan Yahya, Muhd Zu Azhan Mohd. Salleh, Hamzah Yusof, Faridah Ahmad, Abdul Aziz
author_facet	Asrul, Nurrisa Othman, Raihan Yahya, Muhd Zu Azhan Mohd. Salleh, Hamzah Yusof, Faridah Ahmad, Abdul Aziz
author_sort	Asrul, Nurrisa
title	Freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell
title_short	Freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell
title_full	Freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell
title_fullStr	Freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell
title_full_unstemmed	Freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell
title_sort	freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell
publisher	Trans Tech Publications, Switzerland
publishDate	2012
url	http://irep.iium.edu.my/24233/ http://irep.iium.edu.my/24233/ http://irep.iium.edu.my/24233/ http://irep.iium.edu.my/24233/1/AMR.512-515.1499.pdf
first_indexed	2023-09-18T20:36:24Z
last_indexed	2023-09-18T20:36:24Z
_version_	1777409075092389888

Freely-suspended, single chamber glucose oxidase-laccase enzymatic fuel cell

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