Re: AMBER: The forming of micelle

From: Chih-Ying Lin <chihying.usc.edu>
Date: Mon, 22 Sep 2008 12:02:30 -0700

Hi
My solute is not large, 33 atoms.....
Is it possible to form micelles using atomistic simulation of MD?


Thank you
Lin


----- Original Message -----
From: Adrian Roitberg <roitberg.qtp.ufl.edu>
Date: Monday, September 22, 2008 11:24 am
Subject: Re: AMBER: The forming of micelle
To: amber.scripps.edu

> I might be talking outside my expertise here.
> But..
> Have you EVER seen or read about an atomisticsimulation forming a
> micelle spontaneously ?
> DO not think so....
> Before someone flames me, of course there are simulations out there
> that
> do this, but they are done with coarse grained models, which allow
> for
> two things:
> 1. reduce substantially the number of atoms
> 2. increase substantially the time steps you can do.
>
>
> Going back to the question, I would not be surprised if forming a
> micelle with all atoms requires simulation time of a millisecond or
> so,
> clearly beyond current capabilities.
>
> Adrian
>
>
> Chih-Ying Lin wrote:
> >
> >
> > Hi
> > I heard that it takes very long to see a micelle forming.
> > How long should be the simulation time to see the micelle forming?
> > How many nanoseconds to put on the simulation?
> >
> >
> > Is there any particular difference to simulate the micelles than
> the tutorials described?
> > My simulation steps are
> > 1. prepare the topology files and coordinate files for the water
> and the solute
> > 2. generate the simulation box / put water and solute together
> > 3. do the minimisation
> > 4. run MD with longer simulation time
> >
> > Thank you
> > Lin
> >
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>
> --
> Dr. Adrian E. Roitberg
> Associate Professor
> Quantum Theory Project
> Department of Chemistry
>
> Senior Editor. Journal of Physical Chemistry
> American Chemical Society
>
> University of Florida PHONE 352 392-6972
> P.O. Box 118435 FAX 352 392-8722
> Gainesville, FL 32611-8435 Email adrian.qtp.ufl.edu
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Received on Wed Sep 24 2008 - 05:08:03 PDT
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