Preparation and cytocompatibility of novel porous calcium metaphosphate composite membranes
10.3969/j.issn.2095-4344.2013.34.010
- VernacularTitle:新型多孔偏磷酸钙复合膜的制备及细胞相容性*
- Author:
Yueheng WU
;
Peng CHEN
;
Liping MAI
;
Lingmin ZHANG
;
Shunqing TANG
;
Xiyong YU
- Publication Type:Journal Article
- Keywords:
biomaterials;
material biocompatibility;
membrane biomaterial;
composite membranes;
poly(3-hydroxybutyrate-co-4-hydroxybutyrate;
calcium metaphosphate;
porous;
human bone marrow stromal stem cel s;
National Natural Science Foundation of China
- From:
Chinese Journal of Tissue Engineering Research
2013;(34):6123-6130
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND:Porous poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/calcium metaphosphate composite membranes prepared previously is too thick and uneven in holes.
OBJECTIVE:To prepare the thin even porous poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/calcium metaphosphate composite membrane, and to evaluate the cytocompatibility and differentiation capacity.
METHODS:Porous and nonporous, thin and even poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/calcium metaphosphate composite membranes were prepared by phase separation method. Its thickness and weight loss rate were determined. Human bone marrow mesenchymal stem cel s were cocultured with porous and nonporous poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/calcium metaphosphate composite membranes for 7 days. Ultrastructure of composite membranes was observed under the scanning electron microscopy. Surface markers of the bone marrow mesenchymal stem cel s on the composite membranes were analyzed using flow cytometry.
RESULTS AND CONCLUSION:The thickness of the porous and nonporous composite membranes was (0.041 ± 0.005) mm and (0.058±0.004) mm. Weight loss rates of porous and nonporous composite membranes were respectively 19.93%and 7.64%at 24 hours. Calcium metaphosphate particles were evenly distributed in porous and nonporous composite membrane. Cel s spread entirely, showing spindle shape. Calcium metaphosphate particles were evenly distributed in porous composite membrane. Pore in porous composite membranes was also uniformly distributed, and pore size was about 2-8μm. Cel s spread entirely, showing polygonal shape with multiple tentacles. The tentacles of some cel s entered into the scaffold. CD105, CD90, CD44, CD29 and CD73 expression was detected in porous and nonporous composite membranes. There was no significant difference in cel-positive rate. Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/calcium metaphosphate composite membranes prepared in this study has good biocompatibility and could not promote cel differentiation.
