Hi
I have some questions about the surface tension calculations:
1. For the formula, \gamma_m=(P_N - P_L) * L_z / 2, is it only
available for a flat surface, like a lipid bilayer in water ? For example, the
surface fluctuation of lipid bilayer often occur in the simulation, sometimes,
the surface is not flat but bending, in such a case, is the formula still
available? What about the vesicle?
2. In my system, there are a bilayer patch and a NP of ~10nm, they are
all in water. At the beginning (state 1), NP and the bilayer don't contact each
other. After some nanoseconds runtime, NP adsorbs on the surface of the bilayer
(state 2). Finally(state 3), the NP embeds into the inner of the lipid bilayer.
In this case, how can I measure the changing surface tension during the
simulation? Is the formula above available for my system?
In state 1, is that meaning there are four interface in the system? What about
the case (state 2,3) that the NP contacting the bilayer ?
I hope I've describe my questions clearly. Any suggestion or recommended
reference will be appreciated.
Thank you very much.
Sincerely
Li Yang
[EMAIL PROTECTED]
2008-07-17
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