Objective: To investigate the degradation characteristics and ability of bone repair of 3-d porous d, L-PLA bone substitute.
目的：探讨三维多孔d, L - PLA骨替代材料降解特点及骨修复能力。
Methods Coated PLA, PGA, PLGA with poly-l-lysine, free chondrocytes isolated from rabbit articular cartilage were seeded onto three kinds of scaffolds after expansion by in vitro culture.
方法多聚赖氨酸包埋PLA，PGA，PLGA三维细胞支架。 分离培养兔关节软骨细胞，体外扩增后种植到三种支架中。
Recently, poly (d, l-lactide) -poly (ethylene glycol) (PLA-PEG) block copolymers have been widely applied owing to the favorable biodegradability and biocompatibility.
聚乳酸-聚乙二醇嵌段共聚物因具备良好的生物可降解性和相容性而得到广泛应用。
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