1. Introduction
Bacterial cellulose (BC) is an environmentally-friendly polymeric
material, which is now receiving increased attention in
human society. It is an unbranched polymer with nanofibrils, made
up of (1/4)b-glycosidic linked glucose units. These linear glucan
chains form highly regular intra- and inter molecular hydrogen
bonds. In the process of forming these fibers, polymerization and
crystallization occur together to include both characteristics. Then,
these nanofibrils have cross-sectional dimensions in the nm range,
which can then aggregate to form microfibrils with a width of 50e
80 nm, and a thickness of 3e8 nm (Tabuchi, 2007) These can then
form a 3D network structure (Fig. 1). This fine structure makes BC
different from other microbial polysaccharides.