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A novel platform for pulmonary and cardiovascular toxicological characterization of inhaled engineered nanomaterials

Nanotoxicology, ISSN: 1743-5390, Vol: 6, Issue: 6, Page: 680-690
2012
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Article Description

A novel method is presented which is suitable for assessing in vivo the link between the physicochemical properties of engineered nanomaterials (ENM) and their biological outcomes. The ability of the technique to generate a variety of industry-relevant, property-controlled ENM exposure atmospheres for inhalation studies was systematically investigated. The primary particle size for Fe2O3, SiO2, Ag and Ag/SiO2 was controlled from 4 to 25 nm, while the corresponding agglomerate mobility diameter of the aerosol was also controlled and varied from 40 to 120 nm. The suitability of the technique to characterize the pulmonary and cardiovascular effects of inhaled ENMs in intact animal models is also demonstrated using in vivo chemiluminescence (IVCL). The IVCL technique is a highly sensitive method for identifying cardiopulmonary responses to inhaled ENMs under relatively small doses and acute exposures. It is shown that moderate and acute exposures to inhaled nanostructured Fe2O3 can cause both pulmonary and cardiovascular effects. © 2012 Informa UK, Ltd.

Bibliographic Details

Sotiriou, Georgios A; Diaz, Edgar; Long, Mark S; Godleski, John; Brain, Joseph; Pratsinis, Sotiris E; Demokritou, Philip

Informa UK Limited

Engineering; Pharmacology, Toxicology and Pharmaceutics

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