Effect of Purification on Nano Microbial Cellulose Pellicle Properties

Nano Microbial Cellulose (NMC) is one of the most effective biopolymer in treating the injury. It has many applications in medical field due to unique properties such as high water absorption, compatibility with body and transparency for medical examination.Accordingly, this research attempts to evaluate the characteristic of raw and purified microbial cellulose for medical usage. The chemical and physical structure of microbial cellulose layer was assessed by FTIR and XRD. In addition, water absorption, wettability and permeability of raw and purified microbial cellulose pellicle were investigated and SEM was applied for assessing the surface of nanocellulose pellicle.FTIR result confirmed the cellulosic structure of pellicle and XRD represented that the crystallinity of NMC was more than cotton (plant cellulose). The obtained result indicated that the amount of water absorption of purified layer is 10% less than raw layer but wettability of the treated layer is increased more than 50%. No permeability was representing against air pressure in raw and purified samples in wet and dry forms at 25 Pa. Therefore, applying purification treatment improved the NMC pellicle properties for modern wound dressing.