Spatially patterned static roughness superimposed on thermal roughness in a condensed phospholipid monolayer

W. R. Schief, Stephen (Steve) Hall, V. Vogel

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Imaging of diffuse light scattering in reflection from a phospholipid monolayer at the air/water interface has revealed a previously undetected separation of the monolayer into two regions distinguishable by the intensity of their scattering. In monolayers of L-dipalmitoyl phosphatidylcholine in the condensed phase, chiral-shaped domains are surrounded by a brighter region that covers approximately half the monolayer. While the scattered intensity from both regions increases with surface pressure in a manner consistent with scattering from thermally induced capillary waves, the additional scattering from the brighter region indicates a static surface roughness superimposed on the thermal roughness.

Original languageEnglish (US)
Pages (from-to)6831-6837
Number of pages7
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume62
Issue number5 B
StatePublished - Nov 2000

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Phospholipids
Roughness
roughness
Scattering
scattering
capillary waves
surface roughness
Light Scattering
light scattering
Surface Roughness
air
Imaging
Cover
Water
water

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics

Cite this

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N2 - Imaging of diffuse light scattering in reflection from a phospholipid monolayer at the air/water interface has revealed a previously undetected separation of the monolayer into two regions distinguishable by the intensity of their scattering. In monolayers of L-dipalmitoyl phosphatidylcholine in the condensed phase, chiral-shaped domains are surrounded by a brighter region that covers approximately half the monolayer. While the scattered intensity from both regions increases with surface pressure in a manner consistent with scattering from thermally induced capillary waves, the additional scattering from the brighter region indicates a static surface roughness superimposed on the thermal roughness.

AB - Imaging of diffuse light scattering in reflection from a phospholipid monolayer at the air/water interface has revealed a previously undetected separation of the monolayer into two regions distinguishable by the intensity of their scattering. In monolayers of L-dipalmitoyl phosphatidylcholine in the condensed phase, chiral-shaped domains are surrounded by a brighter region that covers approximately half the monolayer. While the scattered intensity from both regions increases with surface pressure in a manner consistent with scattering from thermally induced capillary waves, the additional scattering from the brighter region indicates a static surface roughness superimposed on the thermal roughness.

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