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Effects of surface-engineered nanoparticle-based dispersants for marine oil spills on the model organism Artemia franciscana
Journal article   Open access   Peer reviewed

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

April L Rodd, Megan A Creighton, Charles A Vaslet, J Rene Rangel-Mendez, Robert H Hurt and Agnes B Kane
Environmental science & technology, v 48(11), pp 6419-6427
03 Jun 2014
DOI: https://doi.org/10.1021/es500892m
PMID: 24823274
Featured in Collection :   UN Sustainable Development Goals @ Drexel
url
https://doi.org/10.1021/es500892mView
Published, Version of Record (VoR) Open

Abstract

Animals Artemia - drug effects Environmental Restoration and Remediation - instrumentation Hydrophobic and Hydrophilic Interactions Materials Testing Nanoparticles - chemistry Nanoparticles - toxicity Petroleum Pollution Water Pollutants, Chemical - chemistry
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.

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50 citations in Web of Science
55 citations in Scopus

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UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#3 Good Health and Well-Being

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Engineering, Environmental
Environmental Sciences
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