학술논문

Biological investigation of a citrate-coated cobalt–ferrite-based magnetic fluid.
Document Type
Article
Source
Journal of Applied Physics. 5/15/2003, Vol. 93 Issue 10, p6707. 2p. 1 Black and White Photograph.
Subject
*COBALT
*FERRITES
*MAGNETIC fluids
*NANOPARTICLES
*GENETIC toxicology
Language
ISSN
0021-8979
Abstract
The present study reports on several in vivo biological tests carried out with a cobalt -- ferrite, citrate-coated, magnetic fluid sample developed for biomedical purposes. Systematic biological investigation was performed after endovenous injection in mice. Morphological analysis showed magnetic nanoparticle (MNP) infiltration in the parenchyma or vessels of all investigated organs. Nevertheless, at the investigated dose and period of treatment, no cell damage or inflammatory processes were observed. Cytometry alterations and genotoxic effects were not observed. Although precipitation of MNPs in tissues may be taken as undesirable, the absence of morphological alterations is very promising. The data show that the investigated sample is biocompatible and useful for biomedical applications. [ABSTRACT FROM AUTHOR]