| Literature DB >> 25541806 |
M S Jablin1, K Akabori1, J F Nagle1.
Abstract
Recent simulations have indicated that the traditional model for topographical fluctuations in biomembranes should be enriched to include molecular tilt. Here we report the first experimental data supporting this enrichment. Utilizing a previously posited tilt-dependent model, a height-height correlation function was derived. The x-ray scattering from a liquid crystalline stack of oriented fluid phase lipid bilayers was calculated and compared with experiment. By fitting the measured scattering intensity, both the bending modulus K(c)=8.3±0.6×10⁻²⁰ J and the tilt modulus K(θ)=95±7 mN/m were determined for DOPC lipid bilayers at 30 °C.Entities:
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Year: 2014 PMID： 25541806 DOI： 10.1103/PhysRevLett.113.248102
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161