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. Author manuscript; available in PMC: 2011 Aug 23.
Published in final edited form as: J Phys Condens Matter. 2010 Oct 29;22(45):454123. doi: 10.1088/0953-8984/22/45/454123

Figure 1.

Figure 1

Simulation system: A cut-away view of a crystalline Si3N4 nanochannel (grey) containing a DNA molecule (blue and orange) and KCL electrolyte. The water is shown as a semi-transparent surface, K+ and Cl− ions are shown as tan and cyan spheres. The position of the DNA’s center of mass is restrained by a harmonic potential. The displacement of the DNA in an electric field reveals the effective force.