Development of collagen/nanohydroxyapatite scaffolds containing plant extract intended for bone regeneration.

In this study scaffolds of nanohydroxyapatite (nHA) and anionic collagen (C) combined with plant extracts intended for bone tissue repair were developed. Grape seed (P), pomegranate peel (R) and jabuticaba peel (J) extracts were used as collagen crosslinker agents in order to improve the materials properties. All crude extracts were effective against Staphylococcus aureus, but only for CR scaffold inhibition zone was noticed. The extracts acted as crosslinking agents, increasing enzymatic resistance and thermal stability of collagen. The extracts showed cytotoxicity at the concentrations tested, while nHA increased cell viability. The scaffolds presented porosity and pore size appropriate for bone growth. CR, CnHAP, CnHAR and CnHAJ increased the cell viability after 24 h. The combination of collagen, nHA and plant extracts offers a promising strategy to design novel biomaterials for bone tissue regeneration. Copyright © 2021 Elsevier B.V. All rights reserved.

Citation

Claudio Fernandes Garcia, Crisiane Aparecida Marangon, Lívia Contini Massimino, Maria Fátima Guarizo Klingbeil, Virginia Conceição Amaro Martins, Ana Maria de Guzzi Plepis. Development of collagen/nanohydroxyapatite scaffolds containing plant extract intended for bone regeneration. Materials science & engineering. C, Materials for biological applications. 2021 Apr;123:111955

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PMID: 33812583

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