Lateral phase separations and perpendicular transport in membranes |
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Authors: | S H Wu H M McConnell |
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Affiliation: | Stauffer Laboratory for Physical Chemistry Stanford, California 94305, USA |
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Abstract: | A valinomycin-mediated potassium conductivity has been studied using a glass U-tube in which two aqueous compartments are separated by a fritted glass filter impregnated with valinomycin and one or more pure phospholipids. This system can be used to detect the beginning and end of lateral phase separations in binary lipid mixtures, and also demonstrates a pronounced maximum in electrical conductivity of dipalmitoyl phosphatidylcholine at the transition temperature, 41°C. |
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