By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Photocatalytics have been published. According to news reporting from Singapore, Singapore, by NewsRx journalists, research stated, "In this study, an effective photocatalytic disinfection system was established using the newly emerged high power UVA/LED lamp. Crystallizing dish coated with TiO2 was prepared by 32-times impregnation-drying processes, and served as the supporting container for water samples."
The news correspondents obtained a quote from the research from Singapore National University, "This study focused on the application of this UVA/LED system for the photocatalytic disinfection of selected antibiotic-resistant bacteria, Escherichia coli ATCC 700891. The disinfection performances were studied under various light intensities and illumination modes. Results show that higher light intensity could reach more significant inactivation of E. coli ATCC 700891. With the same UV dose, log-removal of antibiotic-resistant bacteria decreased with circle time in the studied range, while increased with duty circle. A 'residual disinfecting effect' was found in the following dark period for bacteria collected at different phases of photocatalytic process. Residual disinfecting effect was found not significant for bacteria with 30 min periodic illumination."
According to the news reporters, the research concluded: "While residual disinfecting effect could kill almost all bacteria after 90 min UV periodic illumination within the following 240 min dark period."
For more information on this research see: Inactivation/reactivation of antibiotic-resistant bacteria by a novel UVA/LED/TiO2 system. Water Research, 2013;47(13):4547-4555. Water Research can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Water Research - www.elsevier.com/wps/product/cws_home/309)
Our news journalists report that additional information may be obtained by contacting P. Xiong, Singapore National University, Dept. of Civil & Environm Engn, Singapore 117576, Singapore (see also Photocatalytics).
Keywords for this news article include: Asia, Photocatalyst, Nanotechnology, Emerging Technologies
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