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Inactivation and Structural Changes of <em>E. Cloacae</em> and <em>B. Subtilis</em> Endospores during IR Laser Water Treatment | OMICS International | Abstract
ISSN: 2157-7587

Hydrology: Current Research
Open Access

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Letter to Editor

Inactivation and Structural Changes of E. Cloacae and B. Subtilis Endospores during IR Laser Water Treatment

S. Ede1, L. Hafner2, R. Frost3 and G. Will1*
1Discipline of Energy and Process Engineering, Queensland University of Technology, GPO Box 2434, Brisbane, Australia
2School of Biomedical Sciences, Queensland University of Technology, GPO Box 2434, Brisbane, Australia
3Discipline of Nanotechnology and Molecular Science, Queensland University of Technology, GPO Box 2434, Brisbane, Australia
Corresponding Author : G. Will
Discipline of Energy and Process Engineering
Queensland University of Technology
GPO Box 2434, Brisbane, Australia
Tel: 61731382997
Fax: 6173138
E-mail: [email protected]
Received October 21, 2011; Accepted January 17, 2012; Published January 20,2012
Citation: Ede S, Hafner L, Frost R, Will G (2012) Inactivation and Structural Changes of E. Cloacae and B. Subtilis Endospores during IR Laser Water Treatment. Hydrol Current Res 3:124. doi: 10.4172/2157-7587.1000124
Copyright: © 2012 Ede S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

The efficiency of CO2 infrared (IR) laser irradiation to disinfect water containing E. cloacae and B. subtilis endospores was determined and compared to ultraviolet (UV) treatment. Cell viability decreased with IR laser treatment for E. cloacae; however, increased viable cell concentrations were observed in B. subtilis endospores. Fourier Transform Infrared (FTIR) spectroscopy and the chemometric method of Principal Component Analysis (PCA) were used to examine cell changes. Increased carbohydrate content was observed in E. cloacae after IR laser treatment.

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