title: Perfluorocarbon emulsions cytotoxic effects on human fibroblasts and effect of aging on particle size distribution.
abstract: The purpose of this study was to characterize emulsion preparations made of perfluorooctyl bromide (PFOB) and egg yolk phospholipid (EYP) and their cytotoxicity. Dynamic light scattering and transmission electron microscopy revealed that freshly prepared emulsions stored at different temperatures for a 24-h period have a unimodal particle size distribution with an average particle size of ca. 200 nm. The emulsion displayed a broader particle size distribution following a 14-day storage. Primary human fibroblasts exposure to PFOB/EYP emulsions permanently inhibited cell proliferation and decreased mitochondrial activity. Scanning electron microscopy pictures reveal the presence of spherical particles on the fibroblasts following exposure to the emulsions after thorough rinsing with culture media.
authors.affiliation: Laboratoire de Bioingénierie et de Biophysique de l'Université de Sherbrooke, Department of Chemical Engineering, Université de Sherbrooke, Sherbrooke (QC), Canada.
authors.forename: Valérie
authors.initials: V
authors.lastname: Centis
authors.forename: Charles J
authors.initials: CJ
authors.lastname: Doillon
authors.forename: Patrick
authors.initials: P
authors.lastname: Vermette
mesh_terms: D049109:Cell Proliferation; D002478:Cells, Cultured; D004530:Egg Yolk; D004655:Emulsions; D005347:Fibroblasts / Q000187:drug effects*; D005466:Fluorocarbons / Q000009:adverse effects*; D006801:Humans; D006842:Hydrocarbons, Brominated; D010316:Particle Size
chemical_list: D004655:Emulsions; D005466:Fluorocarbons; D006842:Hydrocarbons, Brominated; C003072:perflubron