Bacterial cellulose (BC) is a natural nanostructured biopolymer mainly synthesized by acetic acid bacteria.The cellulosic biopolymer has now been recognized as an excellent novel biomaterial not only because it has a high degree of polymerization and crystalline, excellent water-holding capacity, high purity, and high transparency, but also because it has good biocompatibility, bioadaptability and biodegradability, as well as excellent mechanical properties.