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J Biosci Bioeng. 2012 Dec;114(6):663-70. doi: 10.1016/j.jbiosc.2012.07.005. Epub 2012 Aug 11.

Cell proliferation on three-dimensional chitosan-agarose-gelatin cryogel scaffolds for tissue engineering applications.

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  • 1Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.

Abstract

Tissue engineering is a potential approach for the repair of damaged tissues or organs like skin, cartilage, bone etc. Approach utilizes the scaffolds constructed from natural or synthetic polymers fabricated by the available fabrication technologies. This study focuses on the fabrication of the scaffolds using a novel technology called cryogelation, which synthesizes the scaffolds at sub-zero temperature. We have synthesized a novel scaffold from natural polymers like chitosan, agarose and gelatin in optimized ratio using the cryogelation technology. The elasticity of the scaffold was confirmed by rheological studies which supports the utility of the scaffolds for skin and cardiac tissue engineering. Proliferation of different cell types like fibroblast and cardiac cells was analysed by scanning electron microscopy (SEM) and fluorescent microscopy. Biocompatibility of the scaffolds was tested by MTT assay with specific cell type, which showed higher proliferation of the cells on the scaffolds when compared to the two dimensional culture system. Cell proliferation of C(2)C(12) and Cos 7 cells on these scaffolds was further analysed biochemically by alamar blue test and Hoechst test. Biochemical and microscopic analysis of the different cell types on these scaffolds gives an initial insight of these scaffolds towards their utility in skin and cardiac tissue engineering.

Copyright © 2012 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.

PMID:
22884715
[PubMed - indexed for MEDLINE]
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