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dc.contributor.author Chae, SR
dc.contributor.author Badireddy, AR
dc.contributor.author Farner Budarz, J
dc.contributor.author Lin, S
dc.contributor.author Xiao, Y
dc.contributor.author Therezien, M
dc.contributor.author Wiesner, MR
dc.coverage.spatial United States
dc.date.accessioned 2011-06-21T17:27:02Z
dc.date.issued 2010-09-28
dc.identifier http://www.ncbi.nlm.nih.gov/pubmed/20707347
dc.identifier.citation ACS Nano, 2010, 4 (9), pp. 5011 - 5018
dc.identifier.uri http://hdl.handle.net/10161/4098
dc.description.abstract 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.
dc.format.extent 5011 - 5018
dc.language eng
dc.language.iso en_US en_US
dc.relation.ispartof ACS Nano
dc.relation.isversionof 10.1021/nn100620d
dc.subject Bacteriophages
dc.subject Escherichia coli
dc.subject Filtration
dc.subject Fullerenes
dc.subject Membranes, Artificial
dc.subject Particle Size
dc.subject Porosity
dc.subject Reactive Oxygen Species
dc.subject Surface Properties
dc.subject Ultraviolet Rays
dc.title Heterogeneities in fullerene nanoparticle aggregates affecting reactivity, bioactivity, and transport.
dc.title.alternative en_US
dc.type Journal Article
dc.description.version Version of Record en_US
duke.date.pubdate 2010-9-0 en_US
duke.description.endpage 5018 en_US
duke.description.issue 9 en_US
duke.description.startpage 5011 en_US
duke.description.volume 4 en_US
dc.relation.journal Acs Nano en_US
pubs.author-url http://www.ncbi.nlm.nih.gov/pubmed/20707347
pubs.issue 9
pubs.organisational-group /Duke
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.volume 4
dc.identifier.eissn 1936-086X

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