Biosynthesis of Carboxymethylated Bacterial Cellulose Composite for Wound Dressing
A novel bacterial cellulose (BC) composite (carboxymethylated-bacterial cellulose, CM-BC) was synthesized by Acetobacter xylinum by adding water-soluble carboxymethylated cellulose (CMC) in the culture medium. FTIR results showed that CM-BC is obtained by the incorporation of CMC in the network of BC. Water-holding capacity and water vapor transmission rates (WVTR) of CM-BC and BC are determined. The WVTR of CM-BC is comparable to that of BC, but the water-holding capacity of CM-BC is improved compared with BC. Tensile strengths measurement results showed that the fracture stress of CM-BC is higher than that of BC, indicating that CM-BC have more potential wound dressing applications than BC.
Kunyuan Gao, Shaoxiong Zhou, Xinqing Zhao
J. W. Yu et al., "Biosynthesis of Carboxymethylated Bacterial Cellulose Composite for Wound Dressing", Materials Science Forum, Vol. 685, pp. 322-326, 2011