%0 Journal Article
%T Disinfection Kinetics and Contribution of Reactive Oxygen Species When Eliminating Bacteria with TiO<sub>2</sub> Induced Photocatalysis
%A Yanling Cai
%A Maria Str£żmme
%A Ken Welch
%J Journal of Biomaterials and Nanobiotechnology
%P 200-209
%@ 2158-7043
%D 2014
%I Scientific Research Publishing
%R 10.4236/jbnb.2014.53024
%X <p style=\"text-align:justify;\">
	<span style=\"font-size:10.0pt;font-family:;\" \"=\"\"><span style=\"font-family:Verdana;\">Titania (TiO</span><sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\">)
induced photocatalysis has been widely investigated and applied as a
disinfection strategy in many industrial and clinical applications. Reactive
oxygen species (ROS), including hydroxyl radicals (&amp;8226OH), superoxide radicals
(<img src=\"Edit_7727b709-eee5-46de-8422-ce0e29a96762.bmp\" alt=\"\" /></span></span><span style=\"font-size:10.0pt;font-family:;\" \"=\"\"><span style=\"font-family:Verdana;\">) and hydrogen peroxide (H</span><sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\">O</span><sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\">),
generated in the photocatalytic reaction process are considered to be the
active components prompting the bactericidal effect. In the present work, the
kinetics of photocatalytic inactivation of </span><i><span style=\"font-family:Verdana;\">Staphylococcus
epidermidis </span></i><span style=\"font-family:Verdana;\">and specific contributions of <span style=\"line-height:normal;text-align:justify;white-space:normal;\">&amp;#8226</span>OH, <img src=\"Edit_d37a755a-802c-414d-96bc-ccc6e362243a.bmp\" alt=\"\" /></span></span><span style=\"font-size:10pt;font-family:Verdana;\"> </span><span \"=\"\"><span style=\"font-size:10pt;font-family:Verdana;\">and H</span><sub style=\"font-size:10pt;\"><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-size:10pt;font-family:Verdana;\">O</span><sub style=\"font-size:10pt;\"><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-size:10pt;font-family:Verdana;\"> to the bactericidal process were stu</span><span style=\"font-size:10pt;font-family:Verdana;\">died using two disinfection settings sutilizing
photocatalytic resin-TiO</span><sub style=\"font-size:10pt;\"><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-size:10pt;font-family:Verdana;\"> nanocomposite surfaces and suspended TiO</span><sub style=\"font-size:10pt;\"><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-size:10pt;font-family:Verdana;\"> nanoparticles, respectively. In antibacterial tests against </span><i style=\"font-size:10pt;\"><span style=\"font-family:Verdana;\">S. epidermidis</span></i><span style=\"font-size:10pt;font-family:Verdana;\"> with a layer of bacterial
suspension on the resin-TiO</span><sub
%K Photocatalytic Disinfection
%K TiO&lt
%K sub&gt
%K 2&lt
%K /sub&gt
%K Reactive Oxygen Species (ROS)
%K Disinfection Kinetics
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=48313