Application of Chitosan in Bone and Dental Engineering

Published on Aug 19, 2019in Molecules3.267
· DOI :10.3390/MOLECULES24163009
Alicia Aguilar4
Estimated H-index: 4
(French Institute of Health and Medical Research),
Naimah Zein4
Estimated H-index: 4
(French Institute of Health and Medical Research)
+ 8 AuthorsGuoqiang Hua3
Estimated H-index: 3
(UDS: University of Strasbourg)
Sources
Abstract
Chitosan is a deacetylated polysaccharide from chitin, the natural biopolymer primarily found in shells of marine crustaceans and fungi cell walls. Upon deacetylation, the protonation of free amino groups of the d-glucosamine residues of chitosan turns it into a polycation, which can easily interact with DNA, proteins, lipids, or negatively charged synthetic polymers. This positive-charged characteristic of chitosan not only increases its solubility, biodegradability, and biocompatibility, but also directly contributes to the muco-adhesion, hemostasis, and antimicrobial properties of chitosan. Combined with its low-cost and economic nature, chitosan has been extensively studied and widely used in biopharmaceutical and biomedical applications for several decades. In this review, we summarize the current chitosan-based applications for bone and dental engineering. Combining chitosan-based scaffolds with other nature or synthetic polymers and biomaterials induces their mechanical properties and bioactivities, as well as promoting osteogenesis. Incorporating the bioactive molecules into these biocomposite scaffolds accelerates new bone regeneration and enhances neovascularization in vivo.
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