Diffusion in single supported lipid bilayers studied by quasi-elastic neutron scattering

Soft Matter ◽  
2010 ◽  
Vol 6 (23) ◽  
pp. 5864 ◽  
Author(s):  
Clare L. Armstrong ◽  
Martin D. Kaye ◽  
Michaela Zamponi ◽  
Eugene Mamontov ◽  
Madhusudan Tyagi ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Lipid Bilayers ◽  
Supported Lipid Bilayers ◽  
Elastic Neutron ◽  
Elastic Neutron Scattering

Local Dynamics of Lipid Bilayers Studied by Incoherent Quasi-Elastic Neutron Scattering

1989 ◽  
Vol 8 (2) ◽  
pp. 201-206 ◽  
Author(s):  
W Pfeiffer ◽  
Th Henkel ◽  
E Sackmann ◽  
W Knoll ◽  
D Richter
Keyword(s):  
Neutron Scattering ◽  
Lipid Bilayers ◽  
Elastic Neutron ◽  
Local Dynamics ◽  
Elastic Neutron Scattering

Short range ballistic motion in fluid lipid bilayers studied by quasi-elastic neutron scattering

Soft Matter ◽  
2011 ◽  
Vol 7 (18) ◽  
pp. 8358 ◽  
Author(s):  
C. L. Armstrong ◽  
M. Trapp ◽  
J. Peters ◽  
T. Seydel ◽  
M. C. Rheinstädter
Keyword(s):  
Neutron Scattering ◽  
Lipid Bilayers ◽  
Short Range ◽  
Elastic Neutron ◽  
Ballistic Motion ◽  
Elastic Neutron Scattering

Molecular dynamics of lipid bilayers studied by incoherent quasi-elastic neutron scattering

1992 ◽  
Vol 2 (8) ◽  
pp. 1589-1615 ◽  
Author(s):  
S. König ◽  
W. Pfeiffer ◽  
T. Bayerl ◽  
D. Richter ◽  
E. Sackmann
Keyword(s):  
Molecular Dynamics ◽  
Neutron Scattering ◽  
Lipid Bilayers ◽  
Elastic Neutron ◽  
Elastic Neutron Scattering

scholarly journals Hydration Water Freezing in Single Supported Lipid Bilayers

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Laura Toppozini ◽  
Clare L. Armstrong ◽  
Martin D. Kaye ◽  
Madhusudan Tyagi ◽  
Timothy Jenkins ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Lipid Bilayers ◽  
Degrees Of Freedom ◽  
High Energy ◽  
Water Dynamics ◽  
Slow Heating ◽  
High Energy Resolution ◽  
Supported Lipid Bilayers ◽  
Hydration Water ◽  
Elastic Neutron

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.

Membranes studied using neutron scattering and NMR

1995 ◽  
Vol 73 (11-12) ◽  
pp. 687-696 ◽  
Author(s):  
Myer Bloom ◽  
Thomas M. Bayerl
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Neutron Scattering ◽  
Spectral Characteristics ◽  
Nmr Relaxation ◽  
Elastic Neutron ◽  
Fluid Membranes ◽  
Dynamical Properties ◽  
Elastic Neutron Scattering ◽  
Complementary Techniques

After reviewing some of the basic measurements that characterize the study of physical properties of matter using neutron scattering and nuclear magnetic resonance (NMR), connections between information obtained in current research on fluid membranes using these two complementary techniques are explored in two major chapters. In the first, the type of information on the structure of fluid membranes obtained from coherent elastic neutron scattering is compared with that from NMR spectral characteristics. Then, the type of information obtained on dynamical properties from NMR relaxation (T1 and T2) measurements is compared with that from quasi-elastic neutron scattering. Examples of such connections are given with an emphasis on relationships between the time and distance scales intrinsic to neutron scattering and NMR.

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