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Zinc oxide and indium tin oxide thin films for the growth and characterization of Shewanella loihica PV-4 electroactive biofilms

Connolly, Jack; Jain, Anand; Pastorella, Gabriele; Krishnamurthy, Satheesh; Mosnier, Jean-Paul and Marsili, Enrico (2011). Zinc oxide and indium tin oxide thin films for the growth and characterization of Shewanella loihica PV-4 electroactive biofilms. Virulence, 2(5) pp. 479–482.

URL: http://www.scopus.com/inward/record.url?eid=2-s2.0...
DOI (Digital Object Identifier) Link: http://dx.doi.org/10.4161/viru.2.5.17912
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Abstract

TMO electrodes provide a suitable platform for spectroscopy- and microscopy-based investigation of viable EABs. Commercially available TMOs, such as ITO, are produced from rare and expensive elements. Thus, there is a significant need to explore alternative technology to meet the demand. ZnO-based TMOs are low- cost and have excellent electrochemical properties. In this study, we report for the first time a model EAB of Shewanella loihica PV-4 on ZnO films deposited on perspex substrates via PLD. Commercially available ITO electrodes were also used for comparison. EAB electroactivity was characterized through MBV. ITO and ZnO films show flat surfaces and amorphous structure, and have 60 and 105 Ω/sq. sheet resistance, respectively. S. loihica PV-4 biofilms on ITO and ZnO produced maximum current density of 3.38 and 0.25 µA/cm2, respectively. Our results suggest that ZnO has potential for the growth and characterization of EABs.

Item Type: Journal Article
Copyright Holders: 2011 Landes Bioscience
ISSN: 2150-5608
Extra Information: One of the reports from the COST workshop on biofilms
Keywords: indium tin oxide; tin derivative; zinc oxide, article; bioenergy; biofilm; electrode; growth, development and aging; metabolism; microbiology; Shewanella, bioelectric energy sources; biofilms; electrodes; Shewanella; tin compounds; zinc oxide
Academic Unit/Department: Mathematics, Computing and Technology > Engineering & Innovation
Item ID: 35404
Depositing User: Satheesh Krishnamurthy
Date Deposited: 16 Nov 2012 12:40
Last Modified: 16 Nov 2012 12:40
URI: http://oro.open.ac.uk/id/eprint/35404
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