NDLI: Protein–lipid interactions at the air/water interface

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Physical Chemistry Chemical Physics Vol -19

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Physical Chemistry Chemical Physics Vol - 7 Issue - 19

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Contents

Organic surfaces excited by low-energy ions: atomic collisions, molecular desorption and buckminsterfullerenes

Position-dependent energy of molecules in nano-confined water

Translational self diffusion anisotropy in the smectic A phase measured by a static fringe field gradient ¹H NMR diffusometry approach

Investigation of the surface structure of zeolite A

Infrared spectra of the Cl^––C₂H₄ and Br^––C₂H₄ anion dimers

Photophysics of ruthenium polypyridyl complexes formed with lacunary polyoxotungstates with iron addenda

A kinetic model for uptake of HNO₃ and HCl on ice in a coated wall flow system

Kinetics of model energy landscapes: an approach to complex systems

Time-resolved total internal reflection fluorescence spectroscopyPart I. Photophysics of Coumarin 343 at liquid/liquid interface

Conformation of glycosaminoglycans by ion mobility mass spectrometry and molecular modelling

Reduced and oxidized cytochrome c₄ exhibit differences in dynamics

Protein–lipid interactions at the air/water interface

Monte Carlo simulation of an inhomogeneous dielectric continuum model for B-DNA

Simulation of proliferation of neural stem cells on a surface with emphasis on spatial constraints on cell division

Guest–host encapsulation of microporous zeolites in ordered mesoporous materials by molecular simulations

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Protein–lipid interactions at the air/water interface

Content Provider	Royal Society of Chemistry (RSC)
Author	Birembaut, Fabrice Frazier, Richard A. Green, Rebecca J. Lad, Mitaben D.
Copyright Year	2005
Abstract	Surface pressure measurements and external reflection FTIR spectroscopy have been used to probe protein–lipid interactions at the air/water interface. Spread monomolecular layers of stearic acid and phosphocholine were prepared and held at different compressed phase states prior to the introduction of protein to the buffered subphase. Contrasting interfacial behaviour of the proteins, albumin and lysozyme, was observed and revealed the role of both electrostatic and hydrophobic interactions in protein adsorption. The rate of adsorption of lysozyme to the air/water interface increased dramatically in the presence of stearic acid, due to strong electrostatic interactions between the negatively charged stearic acid head group and lysozyme, whose net charge at pH 7 is positive. Introduction of albumin to the subphase resulted in solubilisation of the stearic acid via the formation of an albumin–stearic acid complex and subsequent adsorption of albumin. This observation held for both human and bovine serum albumin. Protein adsorption to a PC layer held at low surface pressure revealed adsorption rates similar to adsorption to the bare air/water interface and suggested very little interaction between the protein and the lipid. For PC layers in their compressed phase state some adsorption of protein occurred after long adsorption times. Structural changes of both lysozyme and albumin were observed during adsorption, but these were dramatically reduced in the presence of a lipid layer compared to that of adsorption to the pure air/water interface.
Starting Page	3478
Ending Page	3485
Page Count	8
File Format	HTM / HTML PDF
ISSN	14639076
Volume Number	7
Issue Number	19
Journal	Physical Chemistry Chemical Physics
DOI	10.1039/b506558p
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Spectroscopy Bovine serum albumin Personal computer Albumin Hydrophobe Phosphocholine Protein Lipid Adsorption Pure Air Lysozyme
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Physical and Theoretical Chemistry

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Surface tension of bovine serum albumin and tween 20 at the air-aqueous interface

Surface tension of protein and insoluble lipids at the air-aqueous phase interface

Adsorption and interactions of the bovine serum albumin-double walled carbon nanotube system

Dynamics of the adsorption of bovine serum albumin at the solution-alumina interface

DSC and Raman study on the effect of lysozyme and bovine serum albumin on phospholipids liposomes

Protein interactions with negatively charged inorganic surfaces

Albumin-fatty acid interactions at monolayer interface

Photophysics and photochemistry of zinc phthalocyanine/bovine serum albumin adducts

Self‐Organization of Lipid‐Porphyrin Conjugates at the Air/Water Interface

Protein–lipid interactions at the air/water interface

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