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Raman spectra measurements on DEPC liposome and cell membrane of living neuron under xenon pressure

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Title: Raman spectra measurements on DEPC liposome and cell membrane of living neuron under xenon pressure
Authors: Uchida, Tsutomu Browse this author →KAKEN DB
Nagayama, Masafumi Browse this author →KAKEN DB
Yamazaki, Kenji Browse this author
Gohara, Kazutoshi Browse this author →KAKEN DB
Sum, Amadeu K. Browse this author
Keywords: liposome
Raman shift
phase transition
Issue Date: Aug-2015
Publisher: NRC Research Press (Canadian Science Publishing )
Journal Title: Canadian journal of chemistry
Volume: 93
Issue: 8
Start Page: 831
End Page: 838
Publisher DOI: 10.1139/cjc-2014-0542
Abstract: The Raman spectra of liposomes were measured under xenon pressures and low temperatures to observe the spectra changes accompanying the gel to liquid crystalline phase transition of the liposomes. C-H stretching bonds of the lipids in the liposome were slightly red shifted at approximately 285 K and atmospheric pressure, which coincided well with the phase transition condition. This Raman peak shift was observed at lower temperatures and related linearly to the xenon pressures. The xenon pressure dependence on the phase transition temperature was in good agreement with the DSC measurements, and the red shifts of Raman peaks supported the molecular mechanism of interaction between xenon and phospholipid bilayers suggested by the MD simulations. The phase transition measurements under xenon pressure with the microscopic Raman spectroscopy were applied to cultured neuronal networks to observe the interaction of dissolved xenon with the cell membrane and the surrounding water.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 内田 努

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