{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Rodd AL"],"funding":["NIEHS NIH HHS"],"pagination":["6419-27"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC4046867"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["48(11)"],"pubmed_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."],"journal":["Environmental science & technology"],"pubmed_title":["Effects of surface-engineered nanoparticle-based dispersants for marine oil spills on the model organism Artemia franciscana."],"pmcid":["PMC4046867"],"funding_grant_id":["T32 ES07272","P42 ES013660","T32 ES007272"],"pubmed_authors":["Vaslet CA","Kane AB","Hurt RH","Rodd AL","Creighton MA","Rangel-Mendez JR"],"additional_accession":[]},"is_claimable":false,"name":"Effects of surface-engineered nanoparticle-based dispersants for marine oil spills on the model organism Artemia franciscana.","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.","dates":{"release":"2014-01-01T00:00:00Z","publication":"2014 Jun","modification":"2025-04-22T00:08:47.748Z","creation":"2019-03-27T01:29:32Z"},"accession":"S-EPMC4046867","cross_references":{"pubmed":["24823274"],"doi":["10.1021/es500892m"]}}