Hydration Water Freezing in Single Supported Lipid Bilayers
Joint Authors
Jenkins, Timothy
Toppozini, Laura
Kaye, Martin D.
Armstrong, Clare L.
Tyagi, Madhusudan
Rheinstädter, Maikel C.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-06-05
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
We present a high-temperature and high-energy resolution neutron scattering investigation of hydration water freezing in single supported lipid bilayers.
Single supported lipid bilayers provide a well-defined biological interface to study hydration water dynamics and coupling to membrane degrees of freedom.
Nanosecond molecular motions of membrane and hydration water were studied in the temperature range 240 K < T < 290 K in slow heating and cooling cycles using coherent and incoherent elastic neutron scattering on a backscattering spectrometer.
Several freezing and melting transitions were observed.
From the length scale dependence of the elastic scattering, these transitions could be assigned to freezing and melting of hydration water dynamics, diffusive lipid, and lipid acyl-tail dynamics.
Coupling was investigated by comparing the different freezing and melting temperatures.
While it is often speculated that membrane and hydration water dynamics are strongly coupled, we find that membrane and hydration water dynamics are at least partially decoupled in single bilayers.
American Psychological Association (APA)
Toppozini, Laura& Armstrong, Clare L.& Kaye, Martin D.& Tyagi, Madhusudan& Jenkins, Timothy& Rheinstädter, Maikel C.. 2012. Hydration Water Freezing in Single Supported Lipid Bilayers. ISRN Biophysics،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-478250
Modern Language Association (MLA)
Toppozini, Laura…[et al.]. Hydration Water Freezing in Single Supported Lipid Bilayers. ISRN Biophysics No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-478250
American Medical Association (AMA)
Toppozini, Laura& Armstrong, Clare L.& Kaye, Martin D.& Tyagi, Madhusudan& Jenkins, Timothy& Rheinstädter, Maikel C.. Hydration Water Freezing in Single Supported Lipid Bilayers. ISRN Biophysics. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-478250
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-478250