Transition metal oxides (TMO) electrodes providea suitable platform for spectroscopy- andmicroscopy-based investigation of viable electroactivebiofilms (EABs). Commercially availableTMOs, such as indium titanium oxide(ITO), are produced from rare and expensiveelements. Thus, there is a significant need toexplore alternative technology to meet thedemand. ZnO-based TMOs are low-cost andhave excellent electrochemical properties. Inthis study, we report for the first time a modelEAB of Shewanella loihica PV-4 on ZnO filmsdeposited on perspex substrates via pulsedlaser deposition (PLD). Commercially availableITO electrodes were also used for comparison.480 Virulence Volume 2 Issue 5EAB electroactivity was characterized throughmicrobial biofilm voltammetry (MBV). ITO andZnO films show flat surfaces and amorphousstructure, and have 60 and 105 /sq. sheetresistance, respectively. S. loihica PV-4 biofilmson ITO and ZnO produced maximum currentdensity of 3.38 and 0.25 mA/cm2, respectively.Our results suggest that ZnO has potential forthe growth and characterization of EABs.
|Numero di pagine||4|
|Stato di pubblicazione||Published - 2011|
All Science Journal Classification (ASJC) codes
- Microbiology (medical)
- Infectious Diseases