Use este identificador para citar ou linkar para este item: http://www.repositorio.cdtn.br:8080/jspui/handle/123456789/454
Título: Ordered mesoporous silica carrier system applied in nanobiotechnology
Título do periódico: Brazilian Archives of Biology and Technology
Autor(es): Sousa, Andreza de
Sousa, Edésia Martins Barros de
Afiliação: Centro de Desenvolvimento da Tecnologia Nuclear/CDTN, Belo Horizonte, MG, Brasil
Centro de Desenvolvimento da Tecnologia Nuclear/CDTN, Belo Horizonte, MG, Brasil
Data do documento: 2005
Palavras-chave: Porous materials;drugs;neoplasms;therapy
Resumo: Ordered mesoporous materials like SBA15 possess a network of channels and pores of well-defined size in the nanoscale range (2-50 nm). This particular pore architecture makes them suitable candidates for hosting and delivery under appropriate conditions of a variety of molecules of pharmaceutical interest, including radiopharmaceuticals. The characteristics of SBA-15 prepared in different temperatures and the behavior of this system regarding microencapsulation of a model drug were investigated. The calcined samples were formed in 0.2 g disks and were soaked in a solution of atenolol used as a model drug. The modification of the aging temperature provoked changes in the structure of the pores, indicating the presence of microporosity and connections between mesopores. Aging the materials at a higher temperature resulted in no microporosity and this fact influenced the control of the release of the model drug.
Acesso: L
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