Nanofibrillated cellulose was obtained according to the TEMPO-mediated oxidation protocol. Bacterial cellulose produced by Gluconacetobacter hansenii served as the starting material for oxidation. The oxidation gave a stable aqueous dispersion of a novel form of nano-cellulose, which was used to cast a film. It was found that the oxidized bacterial cellulose film is formed by fibrils with an average width of ~6 nm and a length from 300 nm to several micrometers. The presence of carboxyl groups on the film surface was confirmed by IR and X-ray photoelectron spectroscopy.

中文翻译：

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由汉森葡糖乙酸杆菌生产的细菌纤维素膜作为氧化纳米原纤纤维素的原料

根据 TEMPO 介导的氧化方案获得纳米原纤化纤维素。由汉森葡糖酸杆菌生产的细菌纤维素作为氧化的起始材料。氧化产生了一种新型纳米纤维素的稳定水分散体，用于流延薄膜。发现氧化细菌纤维素膜由平均宽度为~6 nm、长度为300 nm至几微米的原纤维形成。通过红外和 X 射线光电子能谱证实了薄膜表面存在羧基。