Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/14096

TítuloPreparation of bioactive coatings on the surface of bioinert polymers through an innovative auto-catalytic electroless route
Autor(es)Oliveira, Joaquim M.
Leonor, I. B.
Reis, R. L.
Palavras-chaveApatite
Auto-Catalytic
Bioactivity
Biodegradable
Coating
Polymers
Data2005
EditoraTrans Tech Publications Ltd
RevistaKey Engineering Materials
Resumo(s)The aim of this research was to develop a new methodology to obtain bioactive coatings on bioinert and biodegradable polymers that are not intrinsically bioactive. In this study, three types of materials were used as substrates: (i) high molecular weight polyethylene (HMWPE) and two different types of starch based blends (ii) starch/ethylene vinyl alcohol blends, SEVA-C, and (iii) starch/cellulose acetate blends, SCA. These materials were obtained by injection moulding and by extrusion with blowing agents in order to obtain compact/porous 3D architectures. Three types of baths were developed in order to produce the newly proposed auto-catalytic Ca-P coatings: (i) alkaline, (ii) acid, and (iii) oxidant bath. The obtained results indicated that it was possible to coat the materials surfaces with calcium phosphate (Ca-P) layer with only 60 min of immersion in the different types of auto-catalytic solutions. These innovative auto-catalytic electroless route allows for the production of an adherent bioactive film on the polymeric surfaces. Furthermore, it was possible observe by SEM/EDS the clear bioactive nature of the Ca-P coatings after different immersion periods, in a simulated body fluid (SBF).
TipoCapítulo de livro
URIhttps://hdl.handle.net/1822/14096
ISBN087849961X
DOI10.4028/www.scientific.net/KEM.284-286.203
ISSN1662-9795
Versão da editorahttps://doi.org/10.4028/www.scientific.net/KEM.284-286.203
Arbitragem científicayes
AcessoAcesso aberto
Aparece nas coleções:3B’s - Capítulos de Livros/Book Chapters

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