Cryo-TEM Evidence : Sonication of Dihexadecyl Phosphate Does Not Produce Closed Bilayers with Smooth Curvature

• Dihexadecyl phosphate (DHP) is commonly used for formation of model membranes. In this report cryo-transmission electron microscopy (cryo-TEM) pictures are presented. They clearly show that after cooling to room temperature, dispersions of DHP sonicated at 80 degrees C are dominated by open and folded bilayer fragments, rather than by vesicles with smooth curvature. Quantitative results of an earlier kinetic investigation of viologen reduction in DHP were reproduced using these dispersions.

Nyckelord

TRANSMEMBRANE ELECTRON-TRANSFER

TIME-RESOLVED FLUORESCENCE

SURFACTANT VESICLES

CHARGE SEPARATION

LECITHIN VESICLES

ENERGY-TRANSFER

MEMBRANES

VIOLOGEN

SOLUBILIZATION

SPECTROSCOPY

NATURAL SCIENCES

NATURVETENSKAP

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