Bacterial cellulose is NanoBio - material with interesting properties , which determine its wide application in many fields of medicine and technology. This produced biotechnologically material is characterized by , among others, great hygroscopicity , high chemical purity , unique structure and full biocompatibility , biofunkcjonalnością and lack of toxicity. However, the molecular basis of the biosynthesis of cellulose by Gluconacetobacter xylinus are not fully understood.