Authors: Sarada Prasanna Mallick Amit Rastogi Satyavrat Tripathi Pradeep Srivastava
Publish Date: 2016/12/19
Volume: 40, Issue: 4, Pages: 601-610
Abstract
The current work is an attempt to study the strategies for cartilage tissue regeneration using porous scaffold in wavy walled airlift bioreactor ALBR Novel chitosan poly llactide and hyaluronic acid based composite scaffold were prepared The scaffolds were crosslinked with 1ethyl33dimethylaminopropyl carbodiimide Nhydroxysuccinimide and chondroitin sulfate to obtain interconnected 3D microstructure showing excellent biocompatibility higher cellular differentiation and increased stability The surface morphology and porosity of the scaffolds were analyzed using scanning electron microscopy SEM and mercury intrusion porosimeter and optimized for chondrocyte regeneration The study shows that the scaffolds were highly porous with pore size ranging from 48 to 180 µm and the porosities in the range 80–92 Swelling and in vitro degradation studies were performed for the composite scaffolds by increasing the chitosan HA ratio in the composite scaffolds the swelling property increases and stabilizes after 24 h There was controlled degradation of composite scaffolds for 4 weeks The uniform chondrocyte distribution in the scaffold using various growth modes in the shake flask and ALBR was studied by glycosaminoglycans GAG quantification MTT assay and mixing time evaluation The cell culture studies demonstrated that efficient designing of ALBR increases the cartilage regeneration as compared to using a shake flask The free chondrocyte microscopy and cell attachment were performed by inverted microscope and SEM and from the study it was confirmed that the cells uniformly attached to the scaffold This study focuses on optimizing strategies for the culture of chondrocyte using suitable scaffold for improved cartilage tissue regenerationThis study was supported by the School of Biochemical Engineering IIT BHU Department of Orthopedics IMS BHU Animal House BHU Department of Metallurgical Engineering IIT BHU and Department of Biotechnology and Medical Engineering NIT Rourkela We thank Dr Vikas Singh Dr Abhimanyu Madhual and Mr Dhiraj Kumar Choudhary for their assistance The authors thanks the Indian Institute of Technology BHU Varanasi India for providing infrastructure for the research work
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