From: Mani Kandan (
Date: Mon Jun 11 2018 - 22:37:08 CDT

Dear all,

           I am working with tutorials (
for modeling nanopores for sequencing DNA. In these tutorial silicon
nitride membrane was made neutral by shifting charges on the SI atom.
Actually I want to simulate the system with uniform surface charge. I am
trying to apply uniform surface charges but i didn't get it. Kindly help
me in these regard.

With Thanks,