Figure 9.

Radial distribution functions, f(r), of electrically charged particles in a nanochannel at λ_D = 0.3, 5, and 15 nm, obtained by solving the Nernst-Planck and Poisson equations (Eqs. 14 and 15), for (a and b) a negative ζ-potential of −25 mV and (a) N = 5 and (b) 50, and for (c and d) a positive ζ-potential of 25 mV and (c) N = 5 and (d) 50. Here f(r) is normalized by ${\int }_0^{a}2\pi f\left(r\right)r\text{d}r=1$. To see this figure in color, go online.