Preparation of Plla Membranes with Different Morphologies for Culture of Mg-63 Cells
Resource
BIOMATERIALS v.25 n.18 pp.4047~4056
Journal
BIOMATERIALS
Journal Volume
v.25
Journal Issue
n.18
Pages
4047-4056
Date Issued
2004
Date
2004
Author(s)
LIU, HWA-CHANG
LEE, I-CHI
WANG, JYH- HORNG
YANG, SHU-HUA
YOUNG, TAI-HORNG
Abstract
In this work, Poly L-lactide (PLLA) membranes with different morphologies were prepared and the equilibrium phase diagram of membrane formation system of ethanol, methylene chloride, and PLLA was studied. Based on the phase diagram, particulate and porous membranes, dominated by crystallization and liquid-liquid demixing, respectively, could be prepared by changing the PLLA concentration of casting solution. In addition, in vitro interaction of MG-63 osteosarcoma cells and PLLA membranes with dense, porous and particulate morphologies was investigated . It was found that the particulate membrane not only could improve cell adhesion and growth, but also could upregulate the osteoblastic phenotype. Therefore, the PLLA membrane with particulate morphology satisfies the biomaterial requirement necessary for temporary scaffold to transplanted osteoblasts and provides a means for the architectural design of more complex tissue-engineered systems. (C) 2003 Elsevier Ltd. All rights reserved
Subjects
PLLA
particulate membranes
MG-63 cells