期刊
JOURNAL OF BIOACTIVE AND COMPATIBLE POLYMERS
卷 24, 期 4, 页码 301-315出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0883911509105848
关键词
titanium; tissue engineering; layer-by-layer assembly; alginate; chitosan
资金
- National Natural Science Foundation of China [30772440]
- Society Development Foundation of Jiangsu Province Technology Government Agency [BS2006062]
- Project of Science and Technology Department of Jiangsu Province [BK2008362).]
A biofilm-like scaffold with bone marrow stromal cells (BMSC) encapsulated in situ was constructed on a titanium surface using a layer-by-layer self-assembly technique for the potential application for dental or joint implant. The scaffold was formed by depositing a single layer of positively charged poly(L-lysine) on a negatively charged NaOH-treated titanium substrate, followed by alternate immersion into a negatively charged alginate-BMSC suspension and positively charged chitosan solution, respectively, and terminated a layer of chitosan. The cell-encapsulated scaffolds were evaluated by scanning electron microscopy and confocal laser scanning microscopy. The BMSC remained viable and grew well in the scaffold. This approach provides a method for the preparation of tissue engineering scaffold on titanium surfaces.
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