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

本计画尝试提出一种新颖的奈米纤维纺丝制程。该概念基于高等植物细胞壁从纤维素分子到纳米纤维再到微米级束沉积为二维壁的层次结构的形成，将微米级通道用作控制培养好氧细菌Gluconacetobacter xylinus的有限流场，该细菌将纤维素酶分泌到培养基中。事实上，当培养时，通过控制细菌在通道中的运动，诱导来自单个细菌的刚刚分泌的纳米纤维的组装，从而导致形成初始纤维的较大纳米束。

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.