Journal
CARBOHYDRATE POLYMERS
Volume 105, Issue -, Pages 63-69Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2014.01.068
Keywords
Hydrogel; Polysaccharide; Antibacterial; Wound dressing
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Funding
- National Natural Science Foundation of China [21174071, 81170773]
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Many synthetic hydrogels for drug delivery have been based on polyethylene glycol which is non-natural, non-biodegradable and only terminal-functionalizable. The polysaccharides dextran and chitosan not only are highly hydrophilic, biodegradable and pendant-functionalizable, but also more closely mimic the nature extracellular matrix glycosaminoglycans. Here, a biomimetic hydrogel based on chitosan and dextran was synthesized by the Michael addition reaction. The hydrogels have good swelling and cytocompatibility against NIH3T3. Moreover, vancomycin-loaded hydrogels were formed in situ, and could kill both Gram-positive bacteria and Gram-negative bacteria, indicating that the hydrogel as a wound dressing could provide protection against bacterial infection. Notably, the drug release was controlled via modifying the compositions. Therefore, the biomimetic polysaccharide hydrogels as a promising carrier have potential application for wound healing. (C) 2014 Elsevier Ltd. All rights reserved.
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