- Autores: Borges JP, Ferreira IM, Novo CM, Soares PI, Sousa AI
- Ano de Publicação: 2016
- Journal: Carbohydr Polym
- Link: https://www.ncbi.nlm.nih.gov/pubmed/27561489
In the present work composite nanoparticles with a magnetic core and a chitosan-based shell were produced as drug delivery systems for doxorubicin (DOX). The results show that composite nanoparticles with a hydrodynamic diameter within the nanometric range are able to encapsulate more DOX than polymeric nanoparticles alone corresponding also to a higher drug release. Moreover the synthesis method of the iron oxide nanoparticles influences the total amount of DOX released and a high content of iron oxide nanoparticles inhibits DOX release. The modelling of the experimental results revealed a release mechanism dominated by Fickian diffusion.