Show simple item record Chae, SR Hotze, EM Xiao, Y Rose, J Wiesner, MR 2011-04-15T16:46:25Z 2010-09-01
dc.identifier.citation Environmental Engineering Science, 2010, 27 (9), pp. 797 - 804
dc.identifier.issn 1092-8758
dc.description.abstract 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 C60 within commercial face creams to establish a baseline concentration in these products (the first time this has been performed) and detection of residual C60 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 C60 in these creams represented <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 C60 extracted from preaged samples, indicating residual photochemical reactivity and pointing toward the long-term impacts of utilizing these materials in commercial products. © 2010, Mary Ann Liebert, Inc.
dc.format.extent 797 - 804
dc.language.iso en_US en_US
dc.relation.ispartof Environmental Engineering Science
dc.relation.isversionof 10.1089/ees.2010.0103
dc.title Comparison of methods for fullerene detection and measurements of reactive oxygen production in cosmetic products
dc.type Journal Article
dc.description.version Version of Record en_US 2010-9-0 en_US
duke.description.endpage 804 en_US
duke.description.issue 9 en_US
duke.description.startpage 797 en_US
duke.description.volume 27 en_US
dc.relation.journal Environmental Engineering Science en_US
pubs.issue 9
pubs.organisational-group /Duke
pubs.organisational-group /Duke/Institutes and Provost's Academic Units
pubs.organisational-group /Duke/Institutes and Provost's Academic Units/Initiatives
pubs.organisational-group /Duke/Institutes and Provost's Academic Units/Initiatives/Duke Science & Society
pubs.organisational-group /Duke/Nicholas School of the Environment
pubs.organisational-group /Duke/Nicholas School of the Environment/Earth and Ocean Sciences
pubs.organisational-group /Duke/Nicholas School of the Environment/Environmental Sciences and Policy
pubs.organisational-group /Duke/Pratt School of Engineering
pubs.organisational-group /Duke/Pratt School of Engineering/Civil and Environmental Engineering
pubs.publication-status Published
pubs.volume 27

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