Speakers
Prof.
Elena Ivanova
(Swinburne Univeristy of Technology)Dr
Vi Khanh Truong
(School of Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology)Ms
chris bhadra
(swinburne university of technology)
Description
Electro-catalytic microorganisms are an essential component in bioelectro-catalytic systems such as microbial fuel cells. *Gluconobacter oxydans* has been widely used in such applications. In this study, we employed scanning electron microscopy, confocal laser scanning microscopy and ultra-small angle neutron scattering to investigate the dynamic self-organisation of *G. oxydans* cells into a three dimensional network within a hydrogel that had been constricted using linear poly(vinyl alcohol) and the crosslinker N-vinyl pyrroliodne (VP) (PVA-VP). It was found that the *G. oxydans* utilised the polymeric chains of the PVA-VP to form micro-wires that were capable of transferring electrons. The *G. oxydans* cells formed short chains on the micro-wires over a period of one hour, followed by these short chains undergoing self-assembly to form a three-dimensional network of electron-transferring micro-wires. The formation of this micro-wire network resulted in a twofold increase power generation bring obtained. This discovery has the potential to lead to the development of new, more efficient bioelectrocatalytic systems.
| Keywords | Gluconobacter oxydans, microwires, poly(vinyl alcohol), N-vinyl pyrroliodne |
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Primary authors
Dr
Chris Garvey
(ANSTO)
Prof.
David Mainwaring
(School of Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria, 3122 Australia)
Prof.
Elena Ivanova
(Swinburne Univeristy of Technology)
Mr
Khuong Duy Nguyen
(School of Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria, 3122 Australi)
Dr
Mohammad Al Kobaisi
(School of Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria, 3122 Australia)
Ms
Palalle Perera
(School of Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria, 3122 Australia)
Prof.
Russell J. Crawford
(School of Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria, 3122 Australia)
Prof.
Saulius Juodkazis
(School of Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria, 3122 Australia)
Dr
Vi Khanh Truong
(School of Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology)
Ms
chris bhadra
(swinburne university of technology)
