论文标题
中性和带电的纳米棒在不同的截面通道上运输
Transport of neutral and charged nanorods across varying-section channels
论文作者
论文摘要
我们研究了嵌入不同部分通道中的中性和带电杆的动力学。通过系统的近似值，我们得出了局部扩散系数对杆的几何形状和电荷的依赖性。这种微观见解使我们能够预测不同长度，宽高比和电荷的杆的变化截面通道的渗透性。我们的分析表明，带电杆的动力学对通道的几何形状敏感，并且可以通过调整隔壁的形状和杆的电荷来控制它们的传输。有趣的是，我们发现通道渗透性在杆的电荷上并不取决于杆的电荷。这打开了一种新型机制来分开带电杆的可能性。
We study the dynamics of neutral and charged rods embedded in varying-section channels. By means of systematic approximations, we derive the dependence of the local diffusion coefficient on both the geometry and charge of the rods. This microscopic insight allows us to provide predictions for the permeability of varying-section channels to rods with diverse lengths, aspect ratios and charge. Our analysis shows that the dynamics of charged rods is sensitive to the geometry of the channel and that their transport can be controlled by tuning both the shape of the confining walls and the charge of the rod. Interestingly, we find that the channel permeability does not depend monotonically on the charge of the rod. This opens the possibility of a novel mechanism to separate charged rods.
