[gmx-users] Calculation of the bending modulus (Kc) of bilayer using spectral intensity.

2007-07-31 Thread Hwankyu Lee

Dear gmx-users,

I'm trying to measure the bending modulus (Kc) of lipid bilayer with 
different sizes.  I've found some papers, showing that spectral 
intensity needs to be calculated using the wave vector q, but couldn't 
understand details.  I wonder if I can hear more details and how to do 
that using GROMACS.

Any advice or suggestion will be very appreciated.
Thanks,

best,
Hwankyu.
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Re: [gmx-users] Calculation of the bending modulus (Kc) of bilayer using spectral intensity.

2007-07-31 Thread Mark Abraham

Hwankyu Lee wrote:

Dear gmx-users,

I'm trying to measure the bending modulus (Kc) of lipid bilayer with 
different sizes.  I've found some papers, showing that spectral 
intensity needs to be calculated using the wave vector q, but couldn't 
understand details.  I wonder if I can hear more details and how to do 
that using GROMACS.

Any advice or suggestion will be very appreciated.


My guess from the limited information you've provided here is that 
dynamics within the molecular mechanics approximation is extremely 
unlikely to allow you to generate accurate observables that relate to 
the transmission of light.


If you know about molecular dynamics already, then please elaborate in 
terms of the kind of observables you know you can measure... otherwise, 
please do some background reading about MD!


Mark
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