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Effect of wheat gluten on improved thermal cross-linking and osteogenesis of hydroxyapatite-gelatin composite scaffolds.

Publication Type : Journal Article

Thematic Areas : Nanosciences and Molecular Medicine

Publisher : International Journal of Biological Macromolecules

Source : International Journal of Biological Macromolecules, Volume 183, p.1200-1209 (2021)

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Keywords : Animals, Bone regeneration, Cells, Cultured, Cross-Linking Reagents, Durapatite, gelatin, Glutens, male, Mesenchymal Stem Cells, Osteogenesis, porosity, Rats, Tissue Scaffolds, Triticum

Campus : Kochi

School : Center for Nanosciences

Center : Amrita Center for Nanosciences and Molecular Medicine Move, Nanosciences

Department : Nanosciences and Molecular Medicine, Nanosciences

Year : 2021

Abstract : Promising strategies to stabilize gelatin or collagen include glutaraldehyde-based chemical cross-linking or dehydrothermal treatment at different temperatures (120-180 °C). However, these procedures require 24-48 h for complete cross-linking to occur. The present study aims to evaluate the role of wheat gluten on enhancing thermal cross-linking of silica-nanohydroxyapatite (nanoHA)-gelatin composite scaffolds within a shorter period (2 h). Changes in properties were evaluated by varying the ratio of gelatin and gluten in silica-nanoHA matrix (60 wt% ceramic: 40 wt% polymer). The results showed that the scaffolds cross-linked at 170 °C were stable in phosphate-buffered saline for 21 days. It was crystalline and porous in nature. However, the scaffolds with high weight percentage of wheat gluten were brittle, while those with low gluten degraded fast in vitro. The mesenchymal stem cells could adhere, proliferate and differentiate into osteogenic lineage on wheat gluten-containing scaffolds for 21 days (mainly medium concentration). The scaffold also supported new bone formation in critical-sized rat calvarial defect, showing its osteoconductive and osteointegrative nature. In short, this study showed the potential of wheat gluten on improving thermal cross-linking within a shorter period and its suitability to use as a biomimetic bone graft for bone tissue engineering.

Cite this Research Publication : Lalitha Sri Ramakrishnan, Unnikrishnan Ps, Chinchu K Sabu, Amit G. Krishnan, and Dr. Manitha B. Nair, “Effect of wheat gluten on improved thermal cross-linking and osteogenesis of hydroxyapatite-gelatin composite scaffolds.”, International Journal of Biological Macromolecules, vol. 183, pp. 1200-1209, 2021.

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