| 초록 |
Microbial cellulose is a polymer synthesized in nature and produced in the form of a three dimensional gelatinous structure. The microbial cellulose is composed of a randomly tangled network built by numerous nanofibrils which are excreted by bacteria, such as Acetobacter xylinum, and have a ribbon-shape with a high aspect ratio. These nanofibrils are 200 times finer than cotton, which also consists of nearly pure cellulose after industrial processing, rendering a material with an extraordinary surface area. Because of these features, microbial cellulose exhibits advantages as a wound dressing material compared with other natural and synthetic fibers. The non-pyrogenic, nontoxic, and biocompatible properties of microbial cellulose have recently been reported by many researchers, too. In this study, microbial celluloses were synthesized from A. xylinum BRC5 in Hestrin and Schramm medium with multiwalled carbon nanotubes to investigate the activity of microbial cells during culturing. |
