Sulfidation of Silver Nanoparticles: Natural Antidote to Their Toxicity
Identifieur interne : 000431 ( France/Analysis ); précédent : 000430; suivant : 000432Sulfidation of Silver Nanoparticles: Natural Antidote to Their Toxicity
Auteurs : Clement Levard [États-Unis, France] ; Ernest M. Hotze [États-Unis] ; Benjamin P. Colman [États-Unis] ; Amy L. Dale [États-Unis] ; Lisa Truong [États-Unis] ; X. Y. Yang [États-Unis] ; Audrey J. Bone [États-Unis] ; Gordon E. Jr Brown [États-Unis] ; Robert L. Tanguay [États-Unis] ; Richard T. Di Giulio [États-Unis] ; Emily S. Bernhardt [États-Unis] ; Joel N. Meyer [États-Unis] ; Mark R. Wiesner [États-Unis] ; Gregory V. Lowry [États-Unis]Source :
- Environmental science & technology [ 0013-936X ] ; 2013.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Argent, Particule ultrafine, Aérosol, Milieu aquatique.
English descriptors
- KwdEn :
Abstract
Nanomaterials are highly dynamic in biological and environmental media. A critical need for advancing environmental health and safety research for nanomaterials is to identify physical and chemical transformations that affect the nanomaterial properties and their toxicity. Silver nanoparticles, one of the most toxic and well-studied nanomaterials, readily react with sulfide to form Ag(0)/Ag2S core-shell particles. Here, we show that sulfidation decreased silver nanoparticle toxicity to four diverse types of aquatic and terrestrial eukaryotic organisms (Danio rerio (zebrafish), Fundulus heteroclitus (killifish), Caenorhabditis elegans (nematode worm), and the aquatic plant Lemna minuta (least duckweed)). Toxicity reduction, which was dramatic in killifish and duckweed even for low extents of sulfidation (about 2 mol % S), is primarily associated with a decrease in Ag+ concentration after sulfidation due to the lower solubility of Ag2S relative to elemental Ag (Ag0). These results suggest that even partial sulfidation of AgNP will decrease the toxicity of AgNPs relative to their pristine counterparts. We also show that, for a given organism, the presence of chloride in the exposure media strongly affects the toxicity results by affecting Ag speciation. These results highlight the need to consider environmental transformations of NPs in assessing their toxicity to accurately portray their potential environmental risks.
Affiliations:
- France, États-Unis
- Pennsylvanie, Provence-Alpes-Côte d'Azur
- Marseille, Pittsburgh
- Université Carnegie-Mellon, Université d'Aix-Marseille
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 000376
- to stream PascalFrancis, to step Curation: 004262
- to stream PascalFrancis, to step Checkpoint: 001185
- to stream Main, to step Merge: 006A06
- to stream Main, to step Curation: 006635
- to stream Main, to step Exploration: 006635
- to stream France, to step Extraction: 000431
Links to Exploration step
Pascal:14-0274929Le document en format XML
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Jr Brown</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Surface and Aqueous Geochemistry Group, Department of Geological & Environmental Sciences, Stanford University</s1><s2>Stanford, California 94305-2115</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Stanford, California 94305-2115</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="07"><s1>Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road</s1><s2>Menlo Park, California 94025</s2><s3>USA</s3><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Menlo Park, California 94025</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Department of Photon Science, SLAC National Accelerator Laboratory, 2575 Sand Hill Road</s1><s2>Menlo Park, California 94025</s2><s3>USA</s3><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Menlo Park, California 94025</wicri:noRegion></affiliation></author><author><name sortKey="Tanguay, Robert L" sort="Tanguay, Robert L" uniqKey="Tanguay R" first="Robert L." last="Tanguay">Robert L. 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Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Nicholas School of the Environment, Duke University</s1><s2>Durham, North Carolina, 27708</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina, 27708</wicri:noRegion></affiliation></author><author><name sortKey="Bernhardt, Emily S" sort="Bernhardt, Emily S" uniqKey="Bernhardt E" first="Emily S." last="Bernhardt">Emily S. Bernhardt</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Nicholas School of the Environment, Duke University</s1><s2>Durham, North Carolina, 27708</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina, 27708</wicri:noRegion></affiliation></author><author><name sortKey="Meyer, Joel N" sort="Meyer, Joel N" uniqKey="Meyer J" first="Joel N." last="Meyer">Joel N. Meyer</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Nicholas School of the Environment, Duke University</s1><s2>Durham, North Carolina, 27708</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina, 27708</wicri:noRegion></affiliation></author><author><name sortKey="Wiesner, Mark R" sort="Wiesner, Mark R" uniqKey="Wiesner M" first="Mark R." last="Wiesner">Mark R. Wiesner</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="09"><s1>Department of Civil and Environmental Engineering, Duke University</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>13 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation></author><author><name sortKey="Lowry, Gregory V" sort="Lowry, Gregory V" uniqKey="Lowry G" first="Gregory V." last="Lowry">Gregory V. Lowry</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="4"><inist:fA14 i1="03"><s1>Department of Civil and Environmental Engineering, Carnegie Mellon University</s1><s2>Pittsburgh, Pennsylvania, 15213</s2><s3>USA</s3><sZ>2 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><settlement type="city">Pittsburgh</settlement><region type="state">Pennsylvanie</region></placeName><orgName type="university">Université Carnegie-Mellon</orgName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">14-0274929</idno><date when="2013">2013</date><idno type="stanalyst">PASCAL 14-0274929 INIST</idno><idno type="RBID">Pascal:14-0274929</idno><idno type="wicri:Area/PascalFrancis/Corpus">000376</idno><idno type="wicri:Area/PascalFrancis/Curation">004262</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">001185</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">001185</idno><idno type="wicri:doubleKey">0013-936X:2013:Levard C:sulfidation:of:silver</idno><idno type="wicri:Area/Main/Merge">006A06</idno><idno type="wicri:Area/Main/Curation">006635</idno><idno type="wicri:Area/Main/Exploration">006635</idno><idno type="wicri:Area/France/Extraction">000431</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Sulfidation of Silver Nanoparticles: Natural Antidote to Their Toxicity</title><author><name sortKey="Levard, Clement" sort="Levard, Clement" uniqKey="Levard C" first="Clement" last="Levard">Clement Levard</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Surface and Aqueous Geochemistry Group, Department of Geological & Environmental Sciences, Stanford University</s1><s2>Stanford, California 94305-2115</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Stanford, California 94305-2115</wicri:noRegion></affiliation><affiliation wicri:level="4"><inist:fA14 i1="10"><s1>Aix-Marseille Université, CNRS, IRD, CEREGE UM34</s1><s2>13545 Aix en Provence</s2><s3>FRA</s3><sZ>1 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>13545 Aix en Provence</wicri:noRegion><wicri:noRegion>CEREGE UM34</wicri:noRegion><wicri:noRegion>13545 Aix en Provence</wicri:noRegion><orgName type="university">Université d'Aix-Marseille</orgName><placeName><settlement type="city">Marseille</settlement><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region></placeName></affiliation></author><author><name sortKey="Hotze, Ernest M" sort="Hotze, Ernest M" uniqKey="Hotze E" first="Ernest M." last="Hotze">Ernest M. Hotze</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="4"><inist:fA14 i1="03"><s1>Department of Civil and Environmental Engineering, Carnegie Mellon University</s1><s2>Pittsburgh, Pennsylvania, 15213</s2><s3>USA</s3><sZ>2 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><settlement type="city">Pittsburgh</settlement><region type="state">Pennsylvanie</region></placeName><orgName type="university">Université Carnegie-Mellon</orgName></affiliation></author><author><name sortKey="Colman, Benjamin P" sort="Colman, Benjamin P" uniqKey="Colman B" first="Benjamin P." last="Colman">Benjamin P. Colman</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Nicholas School of the Environment, Duke University</s1><s2>Durham, North Carolina, 27708</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina, 27708</wicri:noRegion></affiliation></author><author><name sortKey="Dale, Amy L" sort="Dale, Amy L" uniqKey="Dale A" first="Amy L." last="Dale">Amy L. Dale</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="4"><inist:fA14 i1="05"><s1>Department of Engineering and Public Policy, Carnegie Mellon University</s1><s2>Pittsburgh, Pennsylvania, 15213</s2><s3>USA</s3><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><settlement type="city">Pittsburgh</settlement><region type="state">Pennsylvanie</region></placeName><orgName type="university">Université Carnegie-Mellon</orgName></affiliation></author><author><name sortKey="Truong, Lisa" sort="Truong, Lisa" uniqKey="Truong L" first="Lisa" last="Truong">Lisa Truong</name><affiliation wicri:level="1"><inist:fA14 i1="06"><s1>Sinnhuber Aquatic Research Laboratory, Oregon State University, 28645 East HWY 34</s1><s2>Corvallis, Oregon 97333</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Corvallis, Oregon 97333</wicri:noRegion></affiliation></author><author><name sortKey="Yang, X Y" sort="Yang, X Y" uniqKey="Yang X" first="X. Y." last="Yang">X. Y. Yang</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Nicholas School of the Environment, Duke University</s1><s2>Durham, North Carolina, 27708</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina, 27708</wicri:noRegion></affiliation></author><author><name sortKey="Bone, Audrey J" sort="Bone, Audrey J" uniqKey="Bone A" first="Audrey J." last="Bone">Audrey J. Bone</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Nicholas School of the Environment, Duke University</s1><s2>Durham, North Carolina, 27708</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina, 27708</wicri:noRegion></affiliation></author><author><name sortKey="Brown, Gordon E Jr" sort="Brown, Gordon E Jr" uniqKey="Brown G" first="Gordon E. Jr" last="Brown">Gordon E. Jr Brown</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Surface and Aqueous Geochemistry Group, Department of Geological & Environmental Sciences, Stanford University</s1><s2>Stanford, California 94305-2115</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Stanford, California 94305-2115</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="07"><s1>Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road</s1><s2>Menlo Park, California 94025</s2><s3>USA</s3><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Menlo Park, California 94025</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Department of Photon Science, SLAC National Accelerator Laboratory, 2575 Sand Hill Road</s1><s2>Menlo Park, California 94025</s2><s3>USA</s3><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Menlo Park, California 94025</wicri:noRegion></affiliation></author><author><name sortKey="Tanguay, Robert L" sort="Tanguay, Robert L" uniqKey="Tanguay R" first="Robert L." last="Tanguay">Robert L. Tanguay</name><affiliation wicri:level="1"><inist:fA14 i1="06"><s1>Sinnhuber Aquatic Research Laboratory, Oregon State University, 28645 East HWY 34</s1><s2>Corvallis, Oregon 97333</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Corvallis, Oregon 97333</wicri:noRegion></affiliation></author><author><name sortKey="Di Giulio, Richard T" sort="Di Giulio, Richard T" uniqKey="Di Giulio R" first="Richard T." last="Di Giulio">Richard T. Di Giulio</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Nicholas School of the Environment, Duke University</s1><s2>Durham, North Carolina, 27708</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina, 27708</wicri:noRegion></affiliation></author><author><name sortKey="Bernhardt, Emily S" sort="Bernhardt, Emily S" uniqKey="Bernhardt E" first="Emily S." last="Bernhardt">Emily S. Bernhardt</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Nicholas School of the Environment, Duke University</s1><s2>Durham, North Carolina, 27708</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina, 27708</wicri:noRegion></affiliation></author><author><name sortKey="Meyer, Joel N" sort="Meyer, Joel N" uniqKey="Meyer J" first="Joel N." last="Meyer">Joel N. Meyer</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Nicholas School of the Environment, Duke University</s1><s2>Durham, North Carolina, 27708</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina, 27708</wicri:noRegion></affiliation></author><author><name sortKey="Wiesner, Mark R" sort="Wiesner, Mark R" uniqKey="Wiesner M" first="Mark R." last="Wiesner">Mark R. Wiesner</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="09"><s1>Department of Civil and Environmental Engineering, Duke University</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>13 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation></author><author><name sortKey="Lowry, Gregory V" sort="Lowry, Gregory V" uniqKey="Lowry G" first="Gregory V." last="Lowry">Gregory V. Lowry</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Center for Environmental Implications of NanoTechnology (CEINT), Duke University, P.O. Box 90287</s1><s2>Durham, North Carolina 27708-0287</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Durham, North Carolina 27708-0287</wicri:noRegion></affiliation><affiliation wicri:level="4"><inist:fA14 i1="03"><s1>Department of Civil and Environmental Engineering, Carnegie Mellon University</s1><s2>Pittsburgh, Pennsylvania, 15213</s2><s3>USA</s3><sZ>2 aut.</sZ><sZ>14 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><settlement type="city">Pittsburgh</settlement><region type="state">Pennsylvanie</region></placeName><orgName type="university">Université Carnegie-Mellon</orgName></affiliation></author></analytic><series><title level="j" type="main">Environmental science & technology</title><title level="j" type="abbreviated">Environ. sci. technol.</title><idno type="ISSN">0013-936X</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Environmental science & technology</title><title level="j" type="abbreviated">Environ. sci. technol.</title><idno type="ISSN">0013-936X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aerosols</term><term>Antidote</term><term>Aquatic environment</term><term>Biocide</term><term>Ecotoxicology</term><term>Environmental impacts</term><term>Nanoparticles</term><term>Nanostructured materials</term><term>Pollutant behavior</term><term>Silver</term><term>Sulfidation</term><term>Toxicity</term><term>Ultrafine particle</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Sulfuration</term><term>Argent</term><term>Nanoparticule</term><term>Particule ultrafine</term><term>Nanomatériau</term><term>Antidote</term><term>Biocide</term><term>Aérosol</term><term>Toxicité</term><term>Devenir polluant</term><term>Impact environnement</term><term>Ecotoxicologie</term><term>Milieu aquatique</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Argent</term><term>Particule ultrafine</term><term>Aérosol</term><term>Milieu aquatique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Nanomaterials are highly dynamic in biological and environmental media. A critical need for advancing environmental health and safety research for nanomaterials is to identify physical and chemical transformations that affect the nanomaterial properties and their toxicity. Silver nanoparticles, one of the most toxic and well-studied nanomaterials, readily react with sulfide to form Ag(0)/Ag<sub>2</sub>S core-shell particles. Here, we show that sulfidation decreased silver nanoparticle toxicity to four diverse types of aquatic and terrestrial eukaryotic organisms (Danio rerio (zebrafish), Fundulus heteroclitus (killifish), Caenorhabditis elegans (nematode worm), and the aquatic plant Lemna minuta (least duckweed)). Toxicity reduction, which was dramatic in killifish and duckweed even for low extents of sulfidation (about 2 mol % S), is primarily associated with a decrease in Ag<sup>+</sup> concentration after sulfidation due to the lower solubility of Ag<sub>2</sub>S relative to elemental Ag (Ag<sup>0</sup>). These results suggest that even partial sulfidation of AgNP will decrease the toxicity of AgNPs relative to their pristine counterparts. We also show that, for a given organism, the presence of chloride in the exposure media strongly affects the toxicity results by affecting Ag speciation. These results highlight the need to consider environmental transformations of NPs in assessing their toxicity to accurately portray their potential environmental risks.</div></front></TEI><affiliations><list><country><li>France</li><li>États-Unis</li></country><region><li>Pennsylvanie</li><li>Provence-Alpes-Côte d'Azur</li></region><settlement><li>Marseille</li><li>Pittsburgh</li></settlement><orgName><li>Université Carnegie-Mellon</li><li>Université d'Aix-Marseille</li></orgName></list><tree><country name="États-Unis"><noRegion><name sortKey="Levard, Clement" sort="Levard, Clement" uniqKey="Levard C" first="Clement" last="Levard">Clement Levard</name></noRegion><name sortKey="Bernhardt, Emily S" sort="Bernhardt, Emily S" uniqKey="Bernhardt E" first="Emily S." last="Bernhardt">Emily S. Bernhardt</name><name sortKey="Bernhardt, Emily S" sort="Bernhardt, Emily S" uniqKey="Bernhardt E" first="Emily S." last="Bernhardt">Emily S. Bernhardt</name><name sortKey="Bone, Audrey J" sort="Bone, Audrey J" uniqKey="Bone A" first="Audrey J." last="Bone">Audrey J. Bone</name><name sortKey="Bone, Audrey J" sort="Bone, Audrey J" uniqKey="Bone A" first="Audrey J." last="Bone">Audrey J. Bone</name><name sortKey="Brown, Gordon E Jr" sort="Brown, Gordon E Jr" uniqKey="Brown G" first="Gordon E. Jr" last="Brown">Gordon E. Jr Brown</name><name sortKey="Brown, Gordon E Jr" sort="Brown, Gordon E Jr" uniqKey="Brown G" first="Gordon E. Jr" last="Brown">Gordon E. Jr Brown</name><name sortKey="Brown, Gordon E Jr" sort="Brown, Gordon E Jr" uniqKey="Brown G" first="Gordon E. Jr" last="Brown">Gordon E. Jr Brown</name><name sortKey="Brown, Gordon E Jr" sort="Brown, Gordon E Jr" uniqKey="Brown G" first="Gordon E. Jr" last="Brown">Gordon E. Jr Brown</name><name sortKey="Colman, Benjamin P" sort="Colman, Benjamin P" uniqKey="Colman B" first="Benjamin P." last="Colman">Benjamin P. Colman</name><name sortKey="Colman, Benjamin P" sort="Colman, Benjamin P" uniqKey="Colman B" first="Benjamin P." last="Colman">Benjamin P. Colman</name><name sortKey="Dale, Amy L" sort="Dale, Amy L" uniqKey="Dale A" first="Amy L." last="Dale">Amy L. Dale</name><name sortKey="Dale, Amy L" sort="Dale, Amy L" uniqKey="Dale A" first="Amy L." last="Dale">Amy L. Dale</name><name sortKey="Di Giulio, Richard T" sort="Di Giulio, Richard T" uniqKey="Di Giulio R" first="Richard T." last="Di Giulio">Richard T. Di Giulio</name><name sortKey="Di Giulio, Richard T" sort="Di Giulio, Richard T" uniqKey="Di Giulio R" first="Richard T." last="Di Giulio">Richard T. Di Giulio</name><name sortKey="Hotze, Ernest M" sort="Hotze, Ernest M" uniqKey="Hotze E" first="Ernest M." last="Hotze">Ernest M. Hotze</name><name sortKey="Hotze, Ernest M" sort="Hotze, Ernest M" uniqKey="Hotze E" first="Ernest M." last="Hotze">Ernest M. Hotze</name><name sortKey="Levard, Clement" sort="Levard, Clement" uniqKey="Levard C" first="Clement" last="Levard">Clement Levard</name><name sortKey="Lowry, Gregory V" sort="Lowry, Gregory V" uniqKey="Lowry G" first="Gregory V." last="Lowry">Gregory V. Lowry</name><name sortKey="Lowry, Gregory V" sort="Lowry, Gregory V" uniqKey="Lowry G" first="Gregory V." last="Lowry">Gregory V. Lowry</name><name sortKey="Meyer, Joel N" sort="Meyer, Joel N" uniqKey="Meyer J" first="Joel N." last="Meyer">Joel N. Meyer</name><name sortKey="Meyer, Joel N" sort="Meyer, Joel N" uniqKey="Meyer J" first="Joel N." last="Meyer">Joel N. Meyer</name><name sortKey="Tanguay, Robert L" sort="Tanguay, Robert L" uniqKey="Tanguay R" first="Robert L." last="Tanguay">Robert L. Tanguay</name><name sortKey="Truong, Lisa" sort="Truong, Lisa" uniqKey="Truong L" first="Lisa" last="Truong">Lisa Truong</name><name sortKey="Wiesner, Mark R" sort="Wiesner, Mark R" uniqKey="Wiesner M" first="Mark R." last="Wiesner">Mark R. Wiesner</name><name sortKey="Wiesner, Mark R" sort="Wiesner, Mark R" uniqKey="Wiesner M" first="Mark R." last="Wiesner">Mark R. Wiesner</name><name sortKey="Yang, X Y" sort="Yang, X Y" uniqKey="Yang X" first="X. Y." last="Yang">X. Y. Yang</name><name sortKey="Yang, X Y" sort="Yang, X Y" uniqKey="Yang X" first="X. Y." last="Yang">X. Y. Yang</name></country><country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Levard, Clement" sort="Levard, Clement" uniqKey="Levard C" first="Clement" last="Levard">Clement Levard</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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