STUDIES ON DEGRADATION OF THREE-DIMENSIONAL POROUS POLY-DL-LACTIDE/HYDROXYAPATITE COMPOSITES IN VITRO
- VernacularTitle:三维多孔聚DL-乳酸/羟基磷灰石复合材料体外降解特征的研究
- Author:
Shaoxiong MIN
;
Anmin JIN
;
Lixin ZHU
- Publication Type:Journal Article
- Keywords:
biocompatible materials;
poly-DL-lactide;
hydroxyapatites;
biodegradation
- From:
Medical Journal of Chinese People's Liberation Army
2001;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
To investigate the degradation features of HA and PDLLA/HA composites in different proportion in vitro. Four kinds of foams consisting of PDLLA, PDLLA/HA (5%wt), PDLLA/HA (20%wt), and PDLLA/HA (35%wt) were immersed in distilled water. Changes in pH, mass loss, viscosity-average molecular weight, and strength against pressure were observed and compared to study degradation features of specimens in vitro. There were statistically differences in the indexes between the PDLLA/HA (20%wt) composite and the other foams after 12 weeks (P
