Interaction of sodium dodecyl sulfate with dimyristoyl-sn-glycero-3-phosphocholine monolayers studied by infrared reflection absorption spectroscopy. A new method for the determination of surface partition coefficients

Article Abstract:

The interaction of the surfactant sodium dodecyl sulfate (SDS) with lipid monolayers of 1,2-dimyristoyl-d54-sn-glycero-3-phosphocholine (DMPC-d54) at the air/water interface was studied by infrared reflection absorption spectroscopy. The results indicate that with increasing the surfactant concentration, the slight shift of the CDs stretching vibration of DMPC-d54 toward lower wave number.

Surface active agents, Surface Active Agent Manufacturing, Photochemical research, Infrared radiation, Photochemistry, Absorption spectra

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Using sodium cation organization to study the phase behavior of bicelle solutions

Article Abstract:

The probing of the electric field gradients near the surface of a dimyristoylphosphatidylcholine (DMPC)/dihexanoyl-phosphatidylcholine (DHPC) bicells using Na(super 23) NMR is presented. The observed splittings for Na(super 23) and their temperature dependence provide information about the constitutional changes.

Cations

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A sold-state NMR and ab initio study of sodium metallocenes

Article Abstract:

A variety of sodium metallocenes were studied by (super 23)Na (I = 3/2) and (super 13)C solid-state numeric magnetic resonance (NMR). A variable-temperature (super 23)Na NMR experiments showed that the magnitude of C(sub Q)((super 23)Na) grows with increasing temperature in the linear metallocenes.

Nuclear magnetic resonance, Chemistry, Physical and theoretical, Physical chemistry, Metallocenes, Magnetic properties

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