Journal
POLYMER REVIEWS
Volume 61, Issue 4, Pages 736-764Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15583724.2021.1896543
Keywords
Tissue engineering; scaffold; composites; hybrids
Categories
Funding
- CAPES (Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior)
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico)
- FUNCAP (Fundacao Cearense de Apoio ao Desenvolvimento Cientifico e Tecnologico)
- Universidade Federal do Ceara (UFC)
- Embrapa Agroindustria Tropical
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Bacterial cellulose (BC) associated with hydroxyapatite (HA) is a promising hybrid scaffold for bone tissue engineering, with exceptional biocompatibility and multifunctional properties. Recent studies have shown that this hybrid scaffold can promote the adhesion, proliferation, and migration of bone cells, contributing to bone healing.
Bacterial cellulose (BC), associated with hydroxyapatite (HA), is a hybrid scaffold that shows promise for use in bone tissue engineering, owing to its osteoconductive, osteoinductive, and osteogenic properties. The hybrid material, constituted of organic and inorganic phases, can be produced by in situ or ex situ routes via three main processes: biomimetic, immersion cycles, and chemical precipitation. This composite has exceptional properties, such as biocompatibility, mechanical strength, conformability, and elasticity, due to the synergetic effect of both phases compared to the single phase. Recent studies have reported on the usefulness of this composite with regard to the adhesion, proliferation, and migration of bone cells for bone healing. The purpose of this review is to report on the state of the art of BC/HA as a hybrid membrane, presenting its synthesis process, the major properties of the single organic and inorganic phases, and their combination, as well as characterization methods, and pre-clinical and clinical studies of bone repair. We also highlight recent progress in the development of multiphasic systems (biopolymers, nanostructures, and factor growth), focusing on the addition of metal cations to improve functionality (particularly strontium).
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