
<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chae, S. R.</style></author><author><style face="normal" font="default" size="100%">Therezien, M.</style></author><author><style face="normal" font="default" size="100%">Budarz, J. F.</style></author><author><style face="normal" font="default" size="100%">Wessel, L.</style></author><author><style face="normal" font="default" size="100%">Lin, S. H.</style></author><author><style face="normal" font="default" size="100%">Xiao, Y.</style></author><author><style face="normal" font="default" size="100%">Wiesner, M. R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Comparison of the photosensitivity and bacterial toxicity of spherical and tubular fullerenes of variable aggregate size</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Nanoparticle Research</style></secondary-title><alt-title><style face="normal" font="default" size="100%">J Nanopart Res</style></alt-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">&lt;Go to ISI&gt;://000295609700067</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">10</style></number><volume><style face="normal" font="default" size="100%">13</style></volume><pages><style face="normal" font="default" size="100%">5121-5127</style></pages><isbn><style face="normal" font="default" size="100%">1388-0764</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">Nanomaterials such as fullerene C(60), carbon nanotubes (CNTs), and other fullerenes show unique electrical, chemical, mechanical, and thermal properties that are not well understood in the context of the environmental behavior of this class of carbon-based materials. In this study, aqueous suspensions of three fullerenes nanoparticles, C(60), single-wall (SW) and multi-wall (MW) CNTs were prepared by sonication and tested for reactive oxygen species (ROS) production and inactivation of Vibrio fischeri, a gram-negative rod-shaped bacterium, under ultraviolet (UV)-A irradiation. We show that ROS production and microbial inactivation increases as colloidal aggregates of C(60), SWCNT, and MWCNT are fractionated to enrich with smaller aggregates by progressive membrane filtration. As the quantity and influence of these more reactive fractions of the suspension may increase with time and/or as the result of fractionation processes in the laboratory or the environment, experiments evaluating photo-reactivity and toxicity endpoints must take into account the evolution and heterogeneity of nanoparticle aggregates in water.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000295609700067</style></accession-num><auth-address><style face="normal" font="default" size="100%">Chae, Sr Univ Sydney, Sch Chem &amp; Biomol Engn, Sydney, NSW 2006, Australia Univ Sydney, Sch Chem &amp; Biomol Engn, Sydney, NSW 2006, Australia Univ Sydney, Sch Chem &amp; Biomol Engn, Sydney, NSW 2006, Australia Duke Univ, Dept Civil &amp; Environmental Engn, Durham, NC 27708 USA</style></auth-address><label><style face="normal" font="default" size="100%">1</style></label></record></records></xml>