Novel microbial spinning of nanofibers using micro-channel culture of Gluconacetobacter xylinus

本课题是提出一种新型纳米纤维纺丝工艺的尝试。这个概念是基于纤维素分子通过纳米纤维形成的高等植物细胞壁的层次结构，直到微束沉积为二维细胞壁。利用微通道作为限制和流场，对一种需氧细菌葡萄糖醋酸杆菌xylinus进行了控制培养，该细菌在培养基中分泌纤维素纳米纤维。事实上，当培养时，单个细菌刚刚分泌的纳米纤维的集合被诱导形成初始纳米纤维的更大纳米束，通过控制通道中细菌的运动。

This project deals with an attempt for proposing a novel nano-fiber spinning process. The concept was based on formation of hierarchical structure of higher plant cell walls from cellulose molecules through nanofibers till micro-sized bundle to be deposited as 2-dimensional walls.The micro-sized channels were employed as a limited and flow field for controlled culturing of an aerobic bacterium, Gluconacetobacter xylinus, which secrete a cellulose nanofiber into the culture media. When cultured in fact, an assembly of just secreted nanofibers from the individual bacteria was induced to result in formation of a larger nano-bundle of the initial nanofiber, by controlling movements of the bacterium in the channel.