细菌运动的差分动态显微术
定量方法
2011-07-12 v2 软凝聚态物质
生物物理
细胞行为
摘要
我们展示了“差分动态显微术”(DDM)用于快速、高通量表征活性粒子的动力学。具体而言，我们表征了大肠杆菌悬浮液中游动速度分布和运动细胞的比例。通过对约10^4个细胞进行平均，我们的结果相比传统追踪方法具有很高的准确性。非运动细胞的扩散率增加了与运动细胞浓度成正比的量。
引用
@article{arxiv.1004.4764,
title = {Differential Dynamic Microscopy of Bacterial Motility},
author = {Laurence G. Wilson and Vincent A. Martinez and Jana Schwarz-Linek and J. Tailleur and Peter N. Pusey and Gary Bryant and Wilson C. K. Poon},
journal= {arXiv preprint arXiv:1004.4764},
year = {2011}
}
备注
4 pages, 4 figures. In this updated version we have added simulations to support our interpretation, and changed the model for the swimming speed probability distribution from log-normal to a Schulz distribution. Neither modification significantly changes our conclusions