On the subtransitions of deuterated derivatives of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine |
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| Authors: | H.L. Casal H.H. Mantsch D.G. Camero B.P. Gaber |
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| Affiliation: | 1. Division of Chemistry, National Research Council of Canada, Ottawa, Ontario K1A 0R6 Canada;2. Optical Techniques Branch, Naval Research Laboratory, Washington, DC 20375 U.S.A. |
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| Abstract: | By means of Fourier transform infrared spectroscopy the subtransition temperature of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and the derivatives in which either or both of the acyl chains were deuterated were determined. It was found that, while the temperatures of the gel to liquid-crystal and the pre-transitions decrease with increasing deuteration, the temperature of the subtransition is independent of the degree of deuteration. |
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| Keywords: | infrared spectroscopy phase transitions membrane structure deuteratred phospholipids |
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