| dc.creator | Rodd, April Lynn | |
| dc.creator | Creighton, Megan A | |
| dc.creator | Vaslet, Charles A | |
| dc.creator | Rangel Méndez, José René | |
| dc.creator | Hurt, Robert H | |
| dc.creator | Kane, Agnes B | |
| dc.date | 2019-08-09T22:22:36Z | |
| dc.date | 2019-08-09T22:22:36Z | |
| dc.date | 2014 | |
| dc.date.accessioned | 2023-07-17T22:04:21Z | |
| dc.date.available | 2023-07-17T22:04:21Z | |
| dc.identifier | Environ. Sci. Technol. 2014, 48, 11, 6419-6427 | |
| dc.identifier | http://hdl.handle.net/11627/5017 | |
| dc.identifier | http://dx.doi.org/10.1021/es500892m | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7543919 | |
| dc.description | "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.format | application/pdf | |
| dc.publisher | American Chemical Society | |
| dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.rights | Acceso Abierto | |
| dc.subject | INGENIERÍA Y TECNOLOGÍA DEL MEDIO AMBIENTE | |
| dc.title | Effects of surface-engineered nanoparticle-based dispersants for marine oil spills on the model organism Artemia franciscana | |
| dc.type | article | |
