2. Physikalisches Institut, Universität Stuttgart, D-70569 Stuttgart, Germany.
Phys Rev Lett. 2013 May 10;110(19):198302. doi: 10.1103/PhysRevLett.110.198302. Epub 2013 May 9.
Micron-sized self-propelled (active) particles can be considered as model systems for characterizing more complex biological organisms like swimming bacteria or motile cells. We produce asymmetric microswimmers by soft lithography and study their circular motion on a substrate and near channel boundaries. Our experimental observations are in full agreement with a theory of Brownian dynamics for asymmetric self-propelled particles, which couples their translational and orientational motion.
微米级自推进(主动)颗粒可以被视为用于描述更复杂的生物生物体(如游动细菌或运动细胞)的模型系统。我们通过软光刻技术生产不对称微游泳者,并研究它们在基底和通道边界附近的圆周运动。我们的实验观察结果与用于不对称自推进颗粒的布朗动力学理论完全一致,该理论将它们的平移和取向运动耦合在一起。