scholarly journals Modeling the dynamics of phospholipids in the fluid phase of liposomes

Soft Matter ◽  
2020 ◽  
Vol 16 (13) ◽  
pp. 3245-3256 ◽  
Author(s):  
Sudipta Gupta ◽  
Gerald J. Schneider
Keyword(s):  
Neutron Scattering ◽  
Spin Echo ◽  
Fluid Phase ◽  
Scattering Data ◽  
Neutron Spin ◽  
Elastic Neutron ◽  
New Model ◽  
Neutron Spin Echo ◽  
Elastic Neutron Scattering

We present the derivation of a new model to describe neutron spin echo spectroscopy and quasi-elastic neutron scattering data on liposomes.

A quasi-elastic neutron scattering and neutron spin-echo study of hydrogen bonded system

2004 ◽  
Vol 350 (1-3) ◽  
pp. E355-E357
Author(s):  
C Branca ◽  
A Faraone ◽  
S Magazù ◽  
G Maisano ◽  
A Mangione
Keyword(s):  
Neutron Scattering ◽  
Spin Echo ◽  
Neutron Spin ◽  
Elastic Neutron ◽  
Neutron Spin Echo ◽  
Elastic Neutron Scattering ◽  
Hydrogen Bonded

Chain expansion and chain localisation in the homogenous regime of blends of liquid low molar mass polysiloxanes as revealed by neutron scattering investigations

e-Polymers ◽  
2003 ◽  
Vol 3 (1) ◽  
Author(s):  
Heide Götz ◽  
Bernd Ewen ◽  
Ulrich Maschke ◽  
Michael Monkenbusch ◽  
Gerd Meier
Keyword(s):  
Neutron Scattering ◽  
Molar Mass ◽  
Spin Echo ◽  
Correlation Spectroscopy ◽  
Scattering Data ◽  
Neutron Spin ◽  
Large Shift ◽  
Binary Blends ◽  
Neutron Spin Echo ◽  
Slowing Down

Abstract Using small angle neutron scattering and neutron spin echo spectroscopy, two isotopic blends of low molar mass polydimethylsiloxane (PDMS) and polyethylmethylsiloxane (PEMS), and the corresponding binary blends d-PDMS/ p-PEMS and p-PDMS/d-PEMS (d: deuterated, p: protonated) were studied at the critical composition in the homogeneous regime. From the scattering data it becomes evident that coil dimensions and collective dynamics of these both blend systems behave significantly different. Compared to the isotopic mixtures, which exhibit the expected unperturbed chain dimensions and the typical Rouse relaxation, in the binary blends, which differ by a large shift with respect to the critical temperature, considerable coil expansion and spatially restricted Rouse relaxation occur. Both these structural and dynamic effects are in agreement with the model of droplet formation and chain localization, resulting from the existence of microscopic heterogeneities within the spinodal boundaries of the phase diagram. In addition, the observation of Rouse relaxation, spatially restricted to microscopic length scales, provides a new access to the molecular understanding of the critical slowing down of the mutual diffusion process, observed by photon correlation spectroscopy.

scholarly journals mQfit, a new program for analyzing quasi-elastic neutron scattering data

2015 ◽  
Vol 83 ◽  
pp. 03010 ◽  
Author(s):  
Nicolas Martinez ◽  
Francesca Natali ◽  
Judith Peters
Keyword(s):  
Neutron Scattering ◽  
Scattering Data ◽  
Elastic Neutron ◽  
Elastic Neutron Scattering
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