| Sign In to gain access to subscriptions and/or personal tools. |
Chitosan/Alginate Multilayer Scaffold Encapsulating Bone Marrow Stromal Cells In Situ on TitaniumCollege of Stomatology, Nanjing Medical University, Nanjing, China
College of Stomatology, Nanjing Medical University, Nanjing, China, wumingyue321{at}126.com
College of Stomatology, Nanjing Medical University, Nanjing, China
College of Stomatology, Nanjing Medical University, Nanjing, China
College of Stomatology, Anhui Medical University, Hefei, China
Department of Medical Biotechnology Anhui Medical University, Hefei, China 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.
Key Words: titanium tissue engineering layer-by-layer assembly alginate chitosan.
Journal of Bioactive and Compatible Polymers, Vol. 24, No. 4,
301-315 (2009) |
|||