Hi, I am trying to simulate a nanotube inserted into a lipid bilayer using Gromacs 4, applying an external electric field (in the direction of the z axis). I have added this line to my input file: ;Electric field E_z = 1 1.0 0
The calculations finish without problem, however I can see a big deformation both of the nanotube and also of the membrane. Is this normal? When I use a smaller electric field: E_z = 1 0.01 0 I cannot see these deformations. Is it usual to find deformations using high electric fields such as 1V? Thanks a lot in advance. Best wishes, Dr. Rebeca Garcia Santiago de Compostela University Spain
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