Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.6/3248
Título: Production of nanofiber-based membranes for biomolecule recovery
Outros títulos: Produção de membranas à base de nanofibras para a recuperação de biomoléculas
Autor: Antunes, Bernardo Paiva
Orientador: Correia, Ilídio Joaquim Sobreira
Palavras-chave: Membranas de dupla face
Electrospinning
Data de Defesa: 2013
Resumo: The demanding of ever-increasing quantities of highly purified biomolecules by bioindustries has triggered the development of new, more efficient, purification techniques. The application of membrane-based technologies has become very attractive in this field, for their high throughput capability, simplicity of operation and scale-up. In this thesis it is reported the production of a bi-layer membrane by electrospinning (ES), in which a support of poly ε-caprolactone nanofibers was coated with a polyethylene oxide/sodium alginate layer, and subsequently cross-linked with calcium chloride. The membranes were characterized by SEM, ATR-FTIR, contact angle measurements, and then were applied in the recovery process of a plasmid. The results obtained show that membranes retained the suspended solids while allowing the permeation of plasmid DNA, with high recovery yields and improved RNA retention. Moreover, they also showed a very low fouling tendency.
URI: http://hdl.handle.net/10400.6/3248
Designação: Dissertação apresentada à Universidade da Beira Interior para a obtenção do grau de Mestre em Biotecnologia
Aparece nas colecções:FC - DQ | Dissertações de Mestrado e Teses de Doutoramento

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