Iron oxide colloids: a comparative study of different surfactants
- Autores: Alves AMR, Borges JPM, Coutinho JT, Ferreira LMM, Novo C, Pereira LCJ, Soares PIP
- Ano de Publicação: 2014
- Journal: Journal of Colloid and Interface Science
- Link: http://www.ncbi.nlm.nih.gov/pubmed/24491328
Iron oxide nanoparticles are having been extensively investigated for several biomedical applications such as hyperthermia and magnetic resonance imaging. However, one of the biggest problems of these nanoparticles is their aggregation. Taking this into account, in this study the influence of three different surfactants (oleic acid, sodium citrate and Triton X-100) each one with various concentrations in the colloidal solutions stability was analyzed by using a rapid and facile method, the variation in the optical absorbance along time.