
<?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%">Hotze, E. M.</style></author><author><style face="normal" font="default" size="100%">Xiao, Y.</style></author><author><style face="normal" font="default" size="100%">Rose, J.</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 Methods for Fullerene Detection and Measurements of Reactive Oxygen Production in Cosmetic Products</style></title><secondary-title><style face="normal" font="default" size="100%">Environmental Engineering Science</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Environ. Eng. Sci.</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">aging</style></keyword><keyword><style  face="normal" font="default" size="100%">ANTIBACTERIAL ACTIVITY</style></keyword><keyword><style  face="normal" font="default" size="100%">c-60 fullerene</style></keyword><keyword><style  face="normal" font="default" size="100%">c-70</style></keyword><keyword><style  face="normal" font="default" size="100%">commercial creams</style></keyword><keyword><style  face="normal" font="default" size="100%">extraction</style></keyword><keyword><style  face="normal" font="default" size="100%">Fullerene</style></keyword><keyword><style  face="normal" font="default" size="100%">NANOMATERIALS</style></keyword><keyword><style  face="normal" font="default" size="100%">Nanoparticles</style></keyword><keyword><style  face="normal" font="default" size="100%">oxygen species</style></keyword><keyword><style  face="normal" font="default" size="100%">performance liquid-chromatography</style></keyword><keyword><style  face="normal" font="default" size="100%">production of reactive</style></keyword><keyword><style  face="normal" font="default" size="100%">quantitative-analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">water suspensions</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;://000281666300010</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">9</style></number><volume><style face="normal" font="default" size="100%">27</style></volume><pages><style face="normal" font="default" size="100%">797-804</style></pages><isbn><style face="normal" font="default" size="100%">1092-8758</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">Numerous commercial products incorporate novel engineered nanomaterials such as gold, silica, zinc oxide, and fullerenes in complex matrices such as polymer composites, creams, and textiles. Analytical methods for detecting nanomaterials in complex matrices are not well developed. Moreover, nanomaterial content and properties of these commercial products are typically unknown and protected for proprietary reasons. This study had two primary aims: detection of C-60 within commercial face creams to establish a baseline concentration in these products (the first time this has been performed) and detection of residual C-60 reactivity remaining in the products aged in water under various light conditions with a view toward environmental exposure assessment. To achieve these aims, three commercial creams advertised as containing the fullerene nanomaterials were investigated using a range of analytical techniques. Among the detection methods tested, only extraction followed by high-performance liquid chromatography was able to detect fullerenes in these products. The measured quantities of C-60 in these creams represented &lt;0.005% (w/w) with an unknown yield because total amounts added to the creams were unknown. Production of reactive oxygen species from these face creams was measured after aging them in water as well as exposing them to solar spectrum illumination or ultraviolet light, or storage in the dark. Singlet oxygen generated in the products after 48 h of aging was correlated with the amounts of C-60 extracted from preaged samples, indicating residual photochemical reactivity and pointing toward the long-term impacts of utilizing these materials in commercial products.</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:000281666300010</style></accession-num><notes><style face="normal" font="default" size="100%">ISI Document Delivery No.: 648BVTimes Cited: 0Cited Reference Count: 28Chae, So-Ryong Hotze, Ernest M. Xiao, Yao Rose, Jerome Wiesner, Mark R.National Science Foundation (NSF) ; Environmental Protection Agency (EPA) under NSF [EF-0830093]; Center for the Environmental Implications of NanoTechnologyThis 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. The authors thank Dr. Hiroshi Yamamura at Hokkaido University and Armand Masion at CEREGE, Aix-Marseille University for help with SEM-EDX and &lt;SUP&gt;13&lt;/SUP&gt;C NMR analysis, respectively. Additionally, the authors acknowledge support from Dr. Fabio Ziarelli and the Spectropole, the Analytical Facility of Aix-Marseille University, by allowing special access to the instruments purchased with European funding (FEDER OBJ2142-3341).Mary ann liebert incNew rochelle</style></notes><auth-address><style face="normal" font="default" size="100%">[Chae, So-Ryong; Xiao, Yao; Wiesner, Mark R.] Duke Univ, Pratt Sch Engn, Dept Civil &amp; Environm Engn, Durham, NC 27708 USA. [Chae, So-Ryong; Hotze, Ernest M.; Xiao, Yao; Rose, Jerome; Wiesner, Mark R.] ICEINT, Durham, NC USA. [Chae, So-Ryong; Hotze, Ernest M.; Xiao, Yao; Rose, Jerome; Wiesner, Mark R.] CEINT, Durham, NC USA. [Chae, So-Ryong; Hotze, Ernest M.; Xiao, Yao; Rose, Jerome; Wiesner, Mark R.] CEINT, Aix En Provence, France. [Chae, So-Ryong; Hotze, Ernest M.; Xiao, Yao; Rose, Jerome; Wiesner, Mark R.] ICEINT, Aix En Provence, France. [Hotze, Ernest M.; Rose, Jerome] UPC, CNRS, CEREGE, UMR 6635, Aix En Provence, France.Wiesner, MR, Duke Univ, Pratt Sch Engn, Dept Civil &amp; Environm Engn, Durham, NC 27708 USA.wiesner@duke.edu</style></auth-address></record></records></xml>