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A chitosan molecule with polymerization of 25 was simulated using Hyperchem Release 7.1 for Windows Molecular Modeling System, and the hydration energies of the 1,4-β-d-glucosidic bonds were computed. As a result, the hydration energies of the glucosidic bonds are: GlcNAc–GlcNAc (0.85kcal/mol)>GlcN–GlcNAc (0.75–0.76kcal/mol) ≈GlcNAc–GlcN (0.74–0.75kcal/mol)> GlcN–GlcN (0.65–0.67kcal/mol). Former...
Thermosensitive hydrogels that are triggered by changes in environmental temperature thus resulting in in situ hydrogel formation have recently attracted the attention of many investigators for biomedical applications. In the current work, the thermosensitive hydrogel was prepared through the mixture of chitosan (CS), poly(vinyl alcohol) (PVA) and sodium bicarbonate. The mixture was liquid aqueous...
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