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Effects of surface-engineered nanoparticle-based dispersants for marine oil spills on the model organism Artemia franciscana

dc.contributor.authorRodd, April Lynn
dc.contributor.authorCreighton, Megan A
dc.contributor.authorVaslet, Charles A
dc.contributor.authorRangel Méndez, José René
dc.contributor.authorHurt, Robert H
dc.contributor.authorKane, Agnes B
dc.date.accessioned2019-08-09T22:22:36Z
dc.date.available2019-08-09T22:22:36Z
dc.date.issued2014
dc.identifier.citationEnviron. Sci. Technol. 2014, 48, 11, 6419-6427
dc.identifier.urihttp://hdl.handle.net/11627/5017
dc.description.abstract"Fine particles are under active consideration as alternatives to chemical dispersants for large-scale petroleum spills. Fine carbon particles with engineered surface chemistry have been shown to stabilize oil-in-water emulsions, but the environmental impacts of large-scale particle introduction to the marine environment are unknown. Here we study the impact of surface-engineered carbon-black materials on brine shrimp (Artemia franciscana) as a model marine microcrustacean. Mortality was characterized at 50–1000 mg/L, and levels of heat shock protein 70 (hsp70) were characterized at sublethal particle concentrations (25–50 mg/L). Functionalized carbon black (CB) nanoparticles were found to be nontoxic at all concentrations, while hydrophobic (annealed) and as-produced CB induced adverse effects at high concentrations. CB was also shown to adsorb benzene, a model hydrocarbon representing the more soluble and toxic low-molecular weight aromatic fraction of petroleum, but the extent of adsorption was insufficient to mitigate benzene toxicity to Artemia in coexposure experiments. At lower benzene concentrations (25–75 mg/L), coexposure with annealed and as-produced CB increased hsp70 protein levels. This study suggests that surface functionalization for increased hydrophilicity can not only improve the performance of CB-based dispersants but also reduce their adverse environmental impacts on marine organisms."
dc.publisherAmerican Chemical Society
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.classificationINGENIERÍA Y TECNOLOGÍA DEL MEDIO AMBIENTE
dc.titleEffects of surface-engineered nanoparticle-based dispersants for marine oil spills on the model organism Artemia franciscana
dc.typearticle
dc.identifier.doihttp://dx.doi.org/10.1021/es500892m
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional