• Skip to primary navigation
  • Skip to main content
  • Skip to footer
  • Pessoal
    • Webmail
    • Área de Docentes
    • Área de Não-Docentes
  • Estudantes
    • Webmail
    • Moodle
    • NetP@
    • Biblioteca
    • Escola Doutoral
    • Serviços Académicos
    • Trabalhar no IHMT

IHMT

Instituto de Higiene e Medicina Tropical

  • O Instituto
    • Missão
    • História
    • Mensagem do Diretor
    • Órgãos de governo
    • Docentes e investigadores
    • Unidades de Ensino e de Investigação
    • Portal de Denúncias UNL
  • Ensino
    • Doutoramentos
    • Mestrados
    • Cursos de Especialização
    • Formação transversal
    • Cursos de Curta Duração
    • Ensino à Distância
    • Apoio ao Desenvolvimento
    • Serviços académicos
  • Investigação
    • Centro GHTM
    • Unidade de Clínica Tropical
    • Unidade de Microbiologia Médica
    • Unidade de Parasitologia Médica
    • Unidade de Saúde Pública Global
    • Serviço de Interesse Comum
    • Biobanco
    • Centro Colaborador da OMS
    • Publicações
  • Serviços e gestão
    • Biblioteca
    • Sistema de Qualidade
    • Estatutos e regulamentos
    • Relatório de Atividades
    • Relatório de Gestão
    • Contratos públicos
    • Recursos humanos
      • Concursos e bolsas
      • Contratos
      • Avaliação e Desempenho
        • Processo Eleitoral da Comissão Paritária
      • Mobilidade
  • Doenças Tropicais
    • Consulta do Viajante
    • Glossário
    • Museu
    • Vídeos
    • MosquitoWeb
  • Comunidade
    • Cooperação e Desenvolvimento
    • Formação
    • Parcerias
  • Contactos
  • Português
  • English
Home / Publicações / Thermal and magnetic properties of chitosan-iron oxide nanoparticles

Thermal and magnetic properties of chitosan-iron oxide nanoparticles

  • Autores: Carlos M.M. Novo, César Laia, Diana Machado, Isabel M.M. Ferreira, Joana T. Coutinho, João Paulo Borges, Laura C.J. Pereira, Paula I.P. Soares
  • Ano de Publicação: 2016
  • Journal: Carbohydrate Polymers
  • Link: http://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 precipitation and thermal decomposition and coated with chitosan with different molecular weights were studied. Basic characterization on bare and chitosan-Fe3O4 NPs was performed demonstrating that chitosan does not affect the crystallinity, chemical composition, and superparamagnetic properties of the Fe3O4 NPs, and also the incorporation of Fe3O4NPs into chitosan nanoparticles increases the later hydrodynamic diameter without compromising its physical and chemical properties. The nano-composite was tested for magnetic hyperthermia by applying an alternating current magnetic field to the samples demonstrating that the heating ability of the Fe3O4 NPs was not significantly affected by chitosan.

Thermal and magnetic properties of chitosan-iron oxide nanoparticles

  • Autores: Carlos M.M. Novo, César Laia, Diana Machado, Isabel M.M. Ferreira, Joana T. Coutinho, João Paulo Borges, Laura C.J. Pereira, Paula I.P. Soares
  • Ano de Publicação: 2016
  • Journal: Carbohydrate Polymers
  • Link: http://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 precipitation and thermal decomposition and coated with chitosan with different molecular weights were studied. Basic characterization on bare and chitosan-Fe3O4 NPs was performed demonstrating that chitosan does not affect the crystallinity, chemical composition, and superparamagnetic properties of the Fe3O4 NPs, and also the incorporation of Fe3O4NPs into chitosan nanoparticles increases the later hydrodynamic diameter without compromising its physical and chemical properties. The nano-composite was tested for magnetic hyperthermia by applying an alternating current magnetic field to the samples demonstrating that the heating ability of the Fe3O4 NPs was not significantly affected by chitosan.

Footer

INSTITUTO DE HIGIENE E
MEDICINA TROPICAL
UNIVERSIDADE NOVA DE LISBOA
Rua da Junqueira, 100 1349-008 Lisboa
T +351 213 652 600
geral@ihmt.unl.pt

Consulta do Viajante e Medicina Tropical
T +351 213 652 630
T +351 213 652 690
T +351 91 182 37 48
T +351 91 182 44 67
medicina.viagens@ihmt.unl.pt

  • Ensino
  • Investigação
  • Medicina Tropical
  • Cooperação
  • Portal de Denúncias UNL

Siga-nos

  • Facebook
  • Instagram
  • LinkedIn
  • Twitter
  • YouTube

Receber a “newsletter”

© Copyright 2023 IHMT-UNL Todos os Direitos Reservados.
  • Universidade Nova de Lisboa
  • Fundação para a Ciência e a Tecnologia

    Project UID/Multi/04413/2013