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Single-component supported lipid bilayers probed using broadband nonlinear optics
Olenick, Laura L.; Chase, Hilary M.; Fu, Li; Zhang, Yun; McGeachy, Alicia C.; Dogangun, Merve; Walter, Stephanie R.; Wang, Hong-fei; Geiger, Franz M.
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume20Issue:5Pages:3063-3072
2018-02-07
Language英语
ISSN1463-9076
DOI10.1039/C7CP02549A
Indexed BySCI
WOS IDWOS:000423897900014
SubtypeJ
AbstractBroadband SFG spectroscopy is shown to offer considerable advantages over scanning systems in terms of signal-to-noise ratios when probing well-formed single-component supported lipid bilayers formed from zwitterionic lipids with PC headgroups. The SFG spectra obtained from bilayers formed from DOPC, POPC, DLPC, DMPC, DPPC and DSPC show a common peak at similar to 2980 cm(-1), which is subject to interference between the C-H and the O-H stretches from the aqueous phase, while membranes having transition temperatures above the laboratory temperature produce SFG spectra with at least two additional peaks, one at similar to 2920 cm(-1) and another at similar to 2880 cm(-1). The results validate spectroscopic and structural data from SFG experiments utilizing asymmetric bilayers in which one leaflet differs from the other in the extent of deuteration. Differences in H2O-D2O exchange experiments reveal that the lineshapes of the broadband SFG spectra are significantly influenced by interference from OH oscillators in the aqueous phase, even when those oscillators are not probed by the incident infrared light in our broadband setup. In the absence of spectral interference from the OH stretches of the solvent, the alkyl chain terminal methyl group of the bilayer is found to be tilted at an angle of 151 to 351 from the surface normal.
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/9393
Collection自适应光学技术研究室(八室)
Recommended Citation
GB/T 7714
Olenick, Laura L.,Chase, Hilary M.,Fu, Li,et al. Single-component supported lipid bilayers probed using broadband nonlinear optics[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2018,20(5):3063-3072.
APA Olenick, Laura L..,Chase, Hilary M..,Fu, Li.,Zhang, Yun.,McGeachy, Alicia C..,...&Geiger, Franz M..(2018).Single-component supported lipid bilayers probed using broadband nonlinear optics.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,20(5),3063-3072.
MLA Olenick, Laura L.,et al."Single-component supported lipid bilayers probed using broadband nonlinear optics".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 20.5(2018):3063-3072.
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