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- W1626014187 abstract "During the past two decades significant advances ha ve been made in the development of materials for bi omedical applications. Deragadable polymeric biomaterials are preferred candidates for developing therapeutic device s such as temporary prostheses, three-dimensional porous structures as scaffolds for tissue engineering and as controlled/ sustained release drug delivery vehicles. The paper presents the results o f studies on alumina ceramics-bioresorbable polymer composites. The idea of biocomposite is that the polymer degrades and in the empty space tissue will grow. The biocomposite s were obtained by infiltration of porous ceramics with prepolymers, sol idified in the final stage due to crystallization. The prepolymer was crystalized at various temperatures, and subsequently c hain-extended with water. Such composites have higher compressive strength in comparison to porous ceramics itself (o ver 6x) and to composites obtained with the applica tion of polyurethanes in which ethylene glycol was used as chain extender . Scanning electron microscopy (SEM) was used to investigate the composites microstructure and to determine whether or not the pores were fully filled with polymer. Compr essive strength of porous alumina ceramics, of poly( e e e e-caprolactono)diol polyurethanes obtained from crystalline prepolymers extended by water and of the composites fabricated by infiltration me thod was tested. The results showed that pores of c eramics were fully filled with polyurethanes. The obtained alumina cer amics-bioresorbable polymer composites also exhibit higher resistance for compressive stresses. Researched composites give new perspectives for medical applications, becaus e it assembles with biocompatible components and have higher compressive strength and fracture toughness in comparison with porous ceramic." @default.
- W1626014187 created "2016-06-24" @default.
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- W1626014187 date "2008-01-01" @default.
- W1626014187 modified "2023-09-24" @default.
- W1626014187 title "Kompozyty ceramika korundowa-polimer bioresorbowalny otrzymywane metodą infiltracji" @default.
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- W1626014187 hasPublicationYear "2008" @default.
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