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Home / Archives for Ferreira IMM

Thermal and magnetic properties of chitosan-iron oxide nanoparticles

  • Authors: Borges P, Coutinho JT, Ferreira IMM, Laia C, Machado D, Novo C, Pereira LCJ, Soares PIP
  • Publication Year: 2016
  • Journal: Carbohydrate Polymers
  • Link: https://www.sciencedirect.com/science/article/pii/S0144861716305008

Chitosan is a biopolymer widely used for biomedical applications such as drug delivery systems, wound healing, and tissue engineering. Chitosan can be used as coating for other types of materials such as iron oxide nanoparticles, improving its biocompatibility while extending its range of applications. In this work iron oxide nanoparticles (Fe3O4 NPs) produced by chemical […]
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Iron oxide nanoparticles stabilized with a bilayer of oleic acid for magnetic hyperthermia and MRI applications

  • Authors: Borges JP, Carvalho A, Coutinho JT, Ferreira IMM, Laia CAT, Novo C, Pereira LCJ, Soares PIP
  • Publication Year: 2016
  • Journal: Applied Surface Science
  • Link: https://www.sciencedirect.com/science/article/pii/S0169433216309709

Iron oxide nanoparticles (Fe3O4, IONPs) are promising candidates for several biomedical applications such as magnetic hyperthermia and as contrast agents for magnetic resonance imaging (MRI). However, their colloidal stability in physiological conditions hinders their application requiring the use of biocompatible surfactant agents. The present investigation focuses on obtaining highly stable IONPs, stabilized by the presence […]
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Towards the development of multifunctional chitosan-based iron oxide nanoparticles: Optimization and modelling of doxorubicin release

  • Authors: Borges JP, Ferreira IMM, Novo CMM, Soares PIP, Sousa AI
  • Publication Year: 2016
  • Journal: Carbohydrate Polymers
  • Link: https://www.sciencedirect.com/science/article/pii/S0144861716309079?via%3Dihub

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Chitosan-based nanoparticles as drug delivery systems for doxorubicin: optimization and modelling

  • Authors: Borges JP, Ferreira IMM, Novo CMM, Silva JC, Soares PIP, Sousa AI
  • Publication Year: 2016
  • Journal: Carbohydrate Polymers
  • Link: http://www.sciencedirect.com/science/article/pii/S0144861716302570

In the present work, two drug delivery systems were produced by encapsulating doxorubicin into chitosan and O-HTCC (ammonium-quaternary derivative of chitosan) nanoparticles. The results show that doxorubicin release is independent of the molecular weight and is higher at acidic pH (4.5) than at physiological pH.
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About GHTM

GHTM is a R&D Unit that brings together researchers with a track record in Tropical Medicine and International & Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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