Resol based chitosan/nano-hydroxyapatite nanoensemble for effective bone tissue engineering

Shakir, M. and Jolly, R. and Khan, A.A. and Ahmed, S.S. and Alam, S. and Rauf, M.A. and Owais, M. and Farooqi, M.A. (2018) Resol based chitosan/nano-hydroxyapatite nanoensemble for effective bone tissue engineering. Carbohydrate Polymers, 179. pp. 317-327. ISSN 1448617

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It is the first report where different amounts of resol resin (RS) were incorporated with chitosan-hydroxyapatite (CHA) to develop a triconstituent nanoensemble CHA-RS(0.5,1,2), via simple co-precipitation method. The results of SEM, TEM, TGA and mechanical analysis revealed irregular interconnected rough morphology with homogenous distribution of needle shaped particles having average size ranging between 12 and 19 nm, possessing higher thermal stability and mechanical strength, respectively relative to CHA (binary) nanocomposite. The CHA-1RS nanocomposite showed enhanced protein adsorption and ALP activity with excellent apatite formation ability compared to CHA-RS(0.5,2) and CHA nanocomposites. Thus, CHA-1RS nanocomposite was selectively tested as bare implant in the repair of critical-size calvarium defect (8 mm) in albino rat. The histopathological and radiological investigations indicated that CHA-1RS prompted the bone regeneration ability as early as 2 weeks postimplantation demonstrating remarkably faster healing of calvarial defect relative to Cerabone. These findings have placed CHA-1RS on the pedestal to be employed as a potential alternative biomaterial for bone tissue engineering.

Item Type: Article
Uncontrolled Keywords: Bone regeneration; Chitosan; Cranial defect; Mineralization; Nanocomposite; Resol
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Faculty of Science > Department of Chemistry
Depositing User: AMU Library
Date Deposited: 17 Jan 2018 10:22
Last Modified: 17 Jan 2018 10:22

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