Acute exposure to TiO2 nanoparticles produces minimal apparent effects on oyster, Crassostrea virginica (Gmelin), hemocytes

Marine Pollution Bulletin
John J DoyleGary H Wikfors

Abstract

The response of oyster (Crassostrea virginica) hemocytes was studied following exposure to anatase nanoparticles (ca. 7.4nm), surface-coated rutile nanocomposites (UV-Titan M212, ca. 86nm) and bulk titanium dioxide (TiO2) particles (anatase and rutile crystalline forms; 0.4-0.5μm). Hemocytes were collected from oysters and exposed to one of the four particle types at concentrations of 0.1, 0.5, and 1.0mg/L under dark and environmentally-relevant light conditions for periods of two and four hours. Hemocyte mortality, phagocytosis, and reactive oxygen species (ROS) production were then evaluated using flow-cytometric assays. Bulk and nanoparticulate TiO2 had little effect on viability of oyster hemocytes or on production of ROS. Significant changes in phagocytosis occurred after exposure to anatase nanoparticles for 4h under dark conditions, and UV-Titan for 2h under light conditions. Results demonstrate that TiO2 particles (bulk or nanoscale) produce minimal effects on hemocyte biomarkers examined following acute, in vitro exposures.

References

Mar 1, 1994·Developmental and Comparative Immunology·R S Anderson
Feb 1, 1996·Comparative Biochemistry and Physiology. Part C, Pharmacology, Toxicology & Endocrinology·G W WinstonC Soverchia
Jan 10, 2002·Redox Report : Communications in Free Radical Research·R KonakaM Inoue
Oct 1, 2004·World Journal of Gastroenterology : WJG·Ai-Ping Zhang, Yan-Ping Sun
Apr 25, 2006·Environmental Toxicology and Chemistry·Sarah B Lovern, Rebecca Klaper
Aug 17, 2006·Environmental Science and Pollution Research International·Kerstin Hund-Rinke, Markus Simon
Feb 17, 2007·Water Science and Technology : a Journal of the International Association on Water Pollution Research·L K AdamsP J J Alvarez
Mar 21, 2008·Ecotoxicology·Richard D HandyMark Crane
May 20, 2008·Environment International·Laura CanesiGiulio Pojana
Jul 9, 2008·Environmental Science & Technology·Nicole C Mueller, Bernd Nowack
Jul 17, 2009·Environmental Science & Technology·Christine Ogilvie RobichaudMark R Wiesner
Jul 31, 2009·Nano Letters·Elena A RozhkovaTijana Rajh
Feb 26, 2010·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Virender K Sharma
Dec 1, 2007·Biointerphases·Cristina BuzeaKevin Robbie
Sep 14, 2010·Nanoethics·Johannes F JacobsPatricia Osseweijer
Feb 23, 2011·Cell Biology and Toxicology·Hélène HégaretPhilippe Soudant
Apr 28, 2011·Applied Microbiology and Biotechnology·Howard A FosterAlex Steele
Jul 20, 2011·Marine Environmental Research·Laura CanesiGabriella Gallo
Jan 21, 2012·Environmental Science & Technology·Alex WeirNatalie von Goetz
Apr 17, 2012·Aquatic Toxicology·April N CroxtonRichard D Schulterbrandt-Gragg
May 1, 2012·Environmental Toxicology and Chemistry·Hongbo MaStephen A Diamond
Jul 28, 2012·Marine Pollution Bulletin·Talia E Abbott ChalewThaddeus K Graczyk
Aug 14, 2012·Environmental Toxicology and Chemistry·Irene AmianoSaioa Zorita
Aug 27, 2013·The Science of the Total Environment·Shibin LiStephen A Diamond
Sep 26, 2013·Marine Environmental Research·Giovanni LibralatoAnnamaria Volpi Ghirardini
Jul 23, 2015·Marine Environmental Research·Brian D JohnsonAmy H Ringwood

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Citations

Jun 1, 2020·Ecotoxicology and Environmental Safety·Hany M R Abdel-LatifMansour El-Matbouli

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