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Composite Scaffolds from Gelatin and Bone Meal Powder for Tissue Engineering

Lantigua, Darlin
Wu, Xinchen
Suvarnapathaki, Sanika
Nguyen, Michelle A
Camci-Unal, Gulden
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UMass Chan Affiliations
Document Type
Journal Article
Publication Date
2021-11-01
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Abstract

Bone tissue engineering offers versatile solutions to broaden clinical options for treating skeletal injuries. However, the variety of robust bone implants and substitutes remains largely uninvestigated. The advancements in hydrogel scaffolds composed of natural polymeric materials and osteoinductive microparticles have shown to be promising solutions in this field. In this study, gelatin methacrylate (GelMA) hydrogels containing bone meal powder (BP) particles were investigated for their osteoinductive capacity. As natural source of the bone mineral, we expect that BP improves the scaffold's ability to induce mineralization. We characterized the physical properties of GelMA hydrogels containing various BP concentrations (0, 0.5, 5, and 50 mg/mL). The in vitro cellular studies revealed enhanced mechanical performance and the potential to promote the differentiation of pre-osteoblast cells. The in vivo studies demonstrated both promising biocompatibility and biodegradation properties. Overall, the biological and physical properties of this biomaterial is tunable based on BP concentration in GelMA scaffolds. The findings of this study offer a new composite scaffold for bone tissue engineering.

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Lantigua D, Wu X, Suvarnapathaki S, Nguyen MA, Camci-Unal G. Composite Scaffolds from Gelatin and Bone Meal Powder for Tissue Engineering. Bioengineering (Basel). 2021 Nov 1;8(11):169. doi: 10.3390/bioengineering8110169. PMID: 34821735; PMCID: PMC8614748.

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DOI
10.3390/bioengineering8110169
PubMed ID
34821735
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Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).Attribution 4.0 International