
<?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%">Badireddy, A. R.</style></author><author><style face="normal" font="default" size="100%">Budarz, J. F.</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%">Therezien, M.</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%">Heterogeneities in Fullerene Nanoparticle Aggregates Affecting Reactivity, Bioactivity, and Transport</style></title><secondary-title><style face="normal" font="default" size="100%">Acs Nano</style></secondary-title><alt-title><style face="normal" font="default" size="100%">ACS Nano</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">(ROS)</style></keyword><keyword><style  face="normal" font="default" size="100%">aqueous-solution</style></keyword><keyword><style  face="normal" font="default" size="100%">c-60</style></keyword><keyword><style  face="normal" font="default" size="100%">c-70</style></keyword><keyword><style  face="normal" font="default" size="100%">CYTOTOXICITY</style></keyword><keyword><style  face="normal" font="default" size="100%">filtration</style></keyword><keyword><style  face="normal" font="default" size="100%">FULLERENE C-60</style></keyword><keyword><style  face="normal" font="default" size="100%">generation</style></keyword><keyword><style  face="normal" font="default" size="100%">heterogeneity</style></keyword><keyword><style  face="normal" font="default" size="100%">inactivation</style></keyword><keyword><style  face="normal" font="default" size="100%">microbial inactivation</style></keyword><keyword><style  face="normal" font="default" size="100%">nanomaterial</style></keyword><keyword><style  face="normal" font="default" size="100%">oxygen production</style></keyword><keyword><style  face="normal" font="default" size="100%">reactive oxygen species</style></keyword><keyword><style  face="normal" font="default" size="100%">size-dependent differences</style></keyword><keyword><style  face="normal" font="default" size="100%">suspensions</style></keyword><keyword><style  face="normal" font="default" size="100%">transport</style></keyword><keyword><style  face="normal" font="default" size="100%">WATER</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Sep</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">&lt;Go to ISI&gt;://000282121000008</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">9</style></number><volume><style face="normal" font="default" size="100%">4</style></volume><pages><style face="normal" font="default" size="100%">5011-5018</style></pages><isbn><style face="normal" font="default" size="100%">1936-0851</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">Properties of nanomaterial suspensions are typically summarized by average values for the purposes of characterizing these materials and interpreting experimental results. We show in this work that the heterogeneity in aqueous suspensions of fullerene C-60 aggregates (nC(60)) must be taken into account for the purposes of predicting nanomaterial transport, exposure, and biological activity. The production of reactive oxygen species (ROS), microbial inactivation, and the mobility of the aggregates of the nC(60) in a silicate porous medium all increased as suspensions were fractionated to enrich with smaller aggregates by progressive membrane filtration. These size-dependent differences are attributed to an increasing degree of hydroxylation of nC(60) aggregates with decreasing size. As the quantity and influence of these more reactive fractions may increase with time, experiments evaluating fullerene transport and toxicity end points must take into account the evolution and heterogeneity of fullerene suspensions.</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><accession-num><style face="normal" font="default" size="100%">ISI:000282121000008</style></accession-num><notes><style face="normal" font="default" size="100%">ISI Document Delivery No.: 653TYTimes Cited: 1Cited Reference Count: 35Chae, So-Ryong Badireddy, Appala R. Budarz, Jeffrey Farner Lin, Shihong Xiao, Yao Therezien, Mathieu Wiesner, Mark R.National Science Foundation (NSF) ; Environmental Protection Agency (EPA) under NSF [EF-0830093]; Center for the Environmental Implications of NanoTechnology (CEINT)This material is based upon work supported by the National Science Foundation (NSF) and the Environmental Protection Agency (EPA) under NSF Cooperative Agreement EF-0830093, Center for the Environmental Implications of NanoTechnology (CEINT). Any opinions, findings, conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF or the EPA. This work has not been subjected to EPA review and no official endorsement should be inferred.Amer chemical socWashington</style></notes><auth-address><style face="normal" font="default" size="100%">[Chae, So-Ryong; Badireddy, Appala R.; Budarz, Jeffrey Farner; Lin, Shihong; Xiao, Yao; Therezien, Mathieu; Wiesner, Mark R.] Duke Univ, Dept Civil &amp; Environm Engn, Pratt Sch Engn, Durham, NC 27708 USA. [Chae, So-Ryong; Badireddy, Appala R.; Budarz, Jeffrey Farner; Lin, Shihong; Xiao, Yao; Therezien, Mathieu; Wiesner, Mark R.] Duke Univ, Ctr Environm Implicat NanoTechnol, Durham, NC 27708 USA.Wiesner, MR, Duke Univ, Dept Civil &amp; Environm Engn, Pratt Sch Engn, Durham, NC 27708 USA.wiesner@duke.edu</style></auth-address></record></records></xml>