High Pressure Infrared Studies Of Aqueous Lipid Assemblies

P. T. T . Wong; H. H . Mantsch

doi:10.1117/12.970821

20 December 1985 High Pressure Infrared Studies Of Aqueous Lipid Assemblies

P. T. T . Wong, H. H . Mantsch

Proceedings Volume 0553, Fourier and Computerized Infrared Spectroscopy; (1985) https://doi.org/10.1117/12.970821
Event: 1985 International Conference on Fourier and Computerized Infrared Spectroscopy, 1985, Ottawa, Canada

Abstract

Infrared spectra of dipalmitoyl phosphatidylcholine (DPPC) bilayers in water have been measured over the pressure range 0 to 35 kbar. Discontinuities in the pressure dependencies of various infrared spectral parameters indicate that structural phase transitions occur at 1.7, 4.8 and 15 kbar. Pressure-induced changes in the CH2 bond angle and in the chain orientation are evident. Pressure also affects the dispersion of,various vibrational frequencies resulting in drastic changes of the Fermi resonance interaction between the symmetric CH2 stretching mode and the continuum of the binary combination of the CH2 bending mode.

Citation Download Citation

P. T. T . Wong and H. H . Mantsch "High Pressure Infrared Studies Of Aqueous Lipid Assemblies", Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); https://doi.org/10.1117/12.970821

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available