Ionic Current During Translocation Through a Nanopore

Hui Liu, Shizhi Qian, and Haim H. Bau

Polarization of the electric double layer as reflected by the concentration distribution of the counter ions

The ionic current during translocation. I0 and Ip are, respectively, the currents in the absence and presence of the particle.

Objective:

Predict the ionic current resulting from the translocation of a cylindrical particle such as DNA through a nano-pore and infer information about the particle’s properties from the measurement of the ionic current

Liu, H., Qian, S., and Bau, H., H., 2007, Biophysical Journal 92: 1164-1177