论文标题
载有货物的单细菌的游泳统计
Swimming statistics of cargo-loaded single bacteria
论文作者
论文摘要
对细菌驱动的微型机器人系统领域的兴趣兴起促使我们研究单细菌的货物运输动力学。在本文中，我们研究了与单细菌的细胞体相连的油滴的游泳行为。油头载的细菌表现出超扩散的运动，其特征是高度方向性的持久性。有趣的是，与游离细菌相比，细菌即使装有8微米的油滴剂也可以导航，旋转阻力有效增加了2个以上。此外，加载细菌的定向持久性与货物尺寸无关。
Burgeoning interest in the area of bacteria-powered micro robotic systems prompted us to study the dynamics of cargo transport by single bacteria. In this paper, we have studied the swimming behaviour of oil-droplets attached as a cargo to the cell bodies of single bacteria. The oil-droplet loaded bacteria exhibit super-diffusive motion which is characterized by high degree of directional persistence. Interestingly, bacteria could navigate even when loaded with oil-droplets as large as 8 microns with an effective increase in rotational drag by more than 2 orders when compared to free bacteria. Further, the directional persistence of oil-droplet loaded bacteria was independent of the cargo size.
