Journal
BIOMACROMOLECULES
Volume 11, Issue 8, Pages 1948-1955Publisher
AMER CHEMICAL SOC
DOI: 10.1021/bm100199m
Keywords
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Funding
- National Research Foundation of Korea [NRF-2008-314-D00515]
- National Research Foundation of Korea [2008-314-D00515] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this study, polycaprolactone (PCL) cylindrical scaffolds with gradually increasing pore size along the longitudinal direction were fabricated by the centrifugation and thermal fibril-bonding process. The fabricated PCL scaffold showed a gradual increasing pore size (from similar to 90 to similar to 400 pm) and porosity (from similar to 80 to similar to 97%) along the cylindrical axis. The pore size gradient PCL scaffold was used to investigate the effect of pore size on the chondrogenic differentiation of adipose stem cells (ASCs). From the in vitro culture of ASCs, it was observed that the scaffold section having a pore size range of 370-400 mu m provided a more favorable environment for chondrogenic differentiation than other pore size groups. The pore size gradient scaffolds can be a good tool for the systematic study of determining optimum pore size ranges for a variety of stem cell differentiation to a specific cell type.
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