1H and 31P NMR Studies of the Reverse Micellar System, DPPC-CDCl3-H2O


  • Bhabha Atomic Research Centre, Biochemistry Division, Bombay, 400085, India
  • Bhabha Atomic Research Centre, Solid State Physics Division, Bombay, 400085, India


1H NMR and 31P NMR studies of DiPalmitoyl Phosphatidyl Choline (DPPC) in CDCl3, at various DPPC concentrations, indicate that DPPC exists as reverse micelles for concentrations beyond 6mM. At low concentrations (< 1.0 mM) aggregates of DPPC (dimers, trimers etc.) exist in CDCl3. The results suggest that at low concentrations of DPPC, intramolecular interactions predominate, whereas at high concentrations, intermolecular interactions predominate. Addition of water at higher concentrations of DPPC, reduces intermolecular interactions.


Reverse Micelles, DPPC-CDCl3, 1H NMR, 31P NMR.

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