Holographic interferometry of ultrasmall-pressure-induced curvature changes of bilayer lipid membranes

Journal Article · Thu Jan 25 00:00:00 EST 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100365a005· OSTI ID:6882348

Picard, G; Schneider-Henriquez, J E; Fendler, J H ^[1]

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1. Universite de Montreal, Quebec (Canada)

Two-exposure interferometric holograms have been shown to sensitively report ultrasmall-pressure (10 natm)-induced curvature changes in glyceryl monooleate (GMO) bilayer lipid membranes (BLMs). The number of concentric fringes observed, and hence the lateral distance between the plane of the Teflon and the BLM, increased linearly with increasing transmembrane pressure and led to a value of 1.1 {plus minus} 0.05 dyn/cm for the surface tension of the BLM. BLMs with appreciable Plateau-Gibbs borders have been shown to undergo nonuniform deformation; the bilayer portion is distorted less than the surrounding Plateau-Gibbs border upon the application of a transmembrane pressure gradient.

• OSTI ID: 6882348
• Journal Information: Journal of Physical Chemistry; (USA), Vol. 94:2, Issue 2; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
LIPIDS
INTERFEROMETRY
MEMBRANES
DATA ANALYSIS
EXPERIMENTAL DATA
HOLOGRAPHY
MAGNETIC MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
SEMICONDUCTOR MATERIALS
DATA
INFORMATION
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
360603* - Materials- Properties
400200 - Inorganic
Organic
& Physical Chemistry