Journal
CARBOHYDRATE POLYMERS
Volume 103, Issue -, Pages 496-501Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2013.12.059
Keywords
Bacterial cellulose; Hyaluronan; Nanocomposites; Wound dressing
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Funding
- National Natural Science Foundation of China [21074041]
- Fundamental Research Funds for Central Universities, HUST [2010JC016]
- Natural Science of Hubei Province for Distinguished Young Scholars [2008CDB279]
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Bacterial cellulose (BC) is useful in the biomedical field because of its unique structure and properties. The high nano-porosity of BC allows other materials to be incorporated and form reinforced composites. Here we describe the preparation and characterization of novel BC/hyaluronan (HA) nanocomposites with a 3-D network structure. BC/HA was obtained using a solution impregnation method. Elemental and ATR-FTIR analyses showed that this method is highly effective to form composites with BC. Weight loss analysis showed that BC/HA have a lower water loss than BC at 37 degrees C. The total surface area and pore volume of BC/HA films gradually decreased with the HA content, as followed by FE-SEM analysis. The elongation at break of BC/HA films gradually increased as the HA content increased. Thermogravimetric analysis showed that the weight loss for the BC/HA composites were lower than for pure BC between 250 and 350 C. The results of weight loss, elongation at break and thermal stability suggested that these novel BC/HA films could be applied potentially as wound dressing materials. (C) 2013 Elsevier Ltd. All rights reserved.
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