TY  - JOUR
AU  - Jaksch, Sebastian
AU  - Koutsioumpas, Alexandros
AU  - Mattauch, Stefan
AU  - Holderer, Olaf
AU  - Frielinghaus, Henrich
TI  - Measurements of Dynamic Contributions to Coherent Neutron Scattering
JO  - Colloids and interfaces
VL  - 2
IS  - 3
SN  - 2504-5377
CY  - Basel
PB  - MDPI
M1  - FZJ-2018-06264
SP  - 31 -
PY  - 2018
AB  - In this manuscript, we are investigating the contribution of dynamic membrane properties of phospholipid membranes to coherent scattering signals under grazing incidence. Spectroscopic measurements under grazing incidence can provide useful insight into the properties of biological membranes; however, they are often impeded by weak signals. By using grazing-incidence small-angle neutron scattering (GISANS) to identify a dynamic scattering contribution, we are able to independently corroborate the existence of a previously found dynamic mode, now measured by grazing-incidence neutron spin echo spectroscopy (GINSES). Additionally, by increasing the speed of measurement compared to GINSES from several days to hours, we were able to explore the temperature behavior of this mode in phospholipid membranes. These dynamic modes of the membranes show a wavelength of around 700 Å in-plane of the membrane and are most pronounced around 37 ∘C and strongly decrease at lower temperatures below 25 ∘C before vanishing at 20 ∘C. We therefore speculate that they may be linked to biologically relevant functions of the membranes themselves. To our knowledge, this is the first report of an investigation of that membrane mode by means of GISANS. 
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000445467800010
DO  - DOI:10.3390/colloids2030031
UR  - https://juser.fz-juelich.de/record/856975
ER  -