The interaction of n-nonyl-β-d-glucopyranoside and sodium dodecyl sulfate with DMPC and DMPG monolayers studied by infrared reflection absorption spectroscopy

Literature Information

Publication Date 2004-09-13
DOI 10.1039/B410761F
Impact Factor 3.676
Authors

Annette Meister, Andreas Kerth, Alfred Blume


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Abstract

The interaction of the surfactants n-nonyl-β-D-glucopyranoside and sodium dodecyl sulfate with lipid monolayers of 1,2-dimyristoyl-d54-sn-glycero-3-phosphocholine and 1,2-dimyristoyl-d54-sn-3-[phospho-rac(1-glycerol)] at the air–water interface was studied by infrared reflection absorption spectroscopy. Isotopically labeled lipids were used in order to obtain separate information about the quantity and structural changes of both, the lipid and the surfactant component during the interaction. Knowing the extinction coefficients of the pure components, the number of lipid and surfactant molecules in the mixed monolayer can be calculated directly from the absorbance of the antisymmetric CD2 and CH2 stretching vibrational bands, respectively. This allows the calculation of the partition coefficient for the surfactant incorporated into the lipid monolayer. The influence of electrostatic interactions on the partition coefficient was investigated by use of the negatively charged lipid 1,2-dimyristoyl-d54-sn-3-[phospho-rac(1-glycerol)] and the surfactant sodium dodecyl sulfate. Finally, the effect of a 0.1 M NaCl subphase on the partitioning is described.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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