Acyl chain packing properties of deuterated lipid bilayer dispersions: Vibrational Raman spectral parameters
Acyl chain packing properties of deuterated lipid bilayer dispersions: Vibrational Raman spectral parameters
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氘化脂质双层分散体的酰基链堆积特性:振动拉曼光谱参数
DOI:
10.1002/jrs.1250210710
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发表时间:
1990
影响因子:
2.5
通讯作者:
I. W. Levin
中科院分区:
文献类型:
--
作者:
M. Devlin;I. W. Levin
The phase, packing and dynamic behavior of model membrane systems consisting of lipids with completely deuterated chains is generally monitored by the temperature dependence of the line width of the methylene (CD2) symmetric stretching modes located at ∼2100 cm−1 1–5 Alternative empirical spectral parameters derived from the peak-height intensity ratios of spectral features assigned to the chain CD methylene and methyl stretching modes are introduced and evaluated. In particular, specific intensity ratios reflect a sensitivity to average inter- and intra-chain order–disorder properties of the portions of the lipid chains localized either near the methyl termini or near the head-group–acyl chain interface. The utility of these intensity parameters is evaluated by examining the bilayer behavior of binary mixtures of dipalmitoylphosphatidylcholine with fully deuterated lipid chains (DPPC-d62) and dipalmitoylphosphatidylcholine with non-deuterated chains (DPPC-do) in various physical states. We also assess the use of intensity parameters for clarifying the effects of ethanol on the inter- and intra-chain interactions of DPPC-d62 bilayers. In the DPPC-d62–ethanol system particular emphasis is placed on the formation of the novel interdigitated chain gel phase.
DOI:
10.1016/0005-2736(85)90248-2
发表时间:
1985
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Rowe,ES
通讯作者:
Rowe,ES
影响因子:
2.9
作者:
Nambi,P;Rowe,ES;McIntosh,TJ
通讯作者:
McIntosh,TJ
DOI:
10.1016/0005-2736(84)90562-5
发表时间:
1984
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Simon,SA;McIntosh,TJ
通讯作者:
McIntosh,TJ