Figure 1

Schematic of the pore geometry showing a membrane of thickness $L$ connecting two salt reservoirs with salt concentrations $C_c$ (cis) and $C_t$ (trans) by a pore of diameter $d$. In the cis reservoir there is a bulk DNA concentration of $C_{\mathrm{DNA}}$, and a voltage difference $V$ is applied across the system. The salt ions are depleted within a layer $\ell$ from the pore walls. There is a liquid velocity profile $v_z(\rho )$ in the $z$ direction, which varies with the radial coordinate $\rho$. There is slip of the flow at the pore walls described by the slip length $b$.Reuse & Permissions

Figure 2

Capture rate [Eq. (15)] as a function of salt asymmetry, for different values of the dimensionless parameter $k$ [see Eq. (15)]. The points are experimental measurements of Ref. 5.Reuse & Permissions