writer：Ying Li, Shuang Qing, Jianhai Zhou, Guang Yang *
keywords：bacterial cellulose
source：期刊
specific source：Carbohydrate Polymers,2014, 103: 496-501.
Issue time：2014年
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 37oC. 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 250-350oC. Weight loss, elongation at break and thermal stability results showed that the novel BC/HA films have potential applications as wound dressings.