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Akademický článek
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Autor:
Rheinstadter, Maikel C.
Neutrons and x-rays are coherent probes, and their coherent properties are used in scattering experiments. Only coherent scattering probes can elucidate collective molecular motions. While phonons in crystals were studied for half a century now, the
Externí odkaz:
http://arxiv.org/abs/0905.1636
Akademický článek
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Autor:
Rheinstadter, Maikel C.
Publikováno v:
Biointerphases Volume 3, Issue 2, pp. FB83-FB90 (June 2008)
The understanding of dynamics and functioning of biological membranes and in particular of membrane embedded proteins is one of the most fundamental problems and challenges in modern biology and biophysics. In particular the impact of membrane compos
Externí odkaz:
http://arxiv.org/abs/0809.5272
Autor:
Rheinstadter, Maikel C., Das, Jhuma, Flenner, Elijah J., Bruening, Beate, Seydel, Tilo, Kosztin, Ioan
Publikováno v:
Phys. Rev. Lett. 101, 248106 (2008) (4 pages)
We report a high energy-resolution neutron backscattering study, combined with in-situ diffraction, to investigate slow molecular motions on nanosecond time scales in the fluid phase of phospholipid bilayers of 1,2-dimyristoyl-sn-glycero-3-phoshatidy
Externí odkaz:
http://arxiv.org/abs/0809.3040
Publikováno v:
Physica B: Condensed Matter Volume 405, Issue 17, 1 September 2010, Pages 3690-3693
The nanoscale fluctuation dynamics of semi dilute high molecular weight polymer solutions of Polyethylenoxide (PEO) in D2O under non-equilibrium flow conditions were studied by the neutron spin-echo technique. The sample cell was in contraction flow
Externí odkaz:
http://arxiv.org/abs/0809.3041
Subdiffusion and lateral diffusion coefficient of lipid atoms and molecules in phospholipid bilayers
We use a long, all-atom molecular dynamics (MD) simulation combined with theoretical modeling to investigate the dynamics of selected lipid atoms and lipid molecules in a hydrated diyristoyl-phosphatidylcholine (DMPC) lipid bilayer. From the analysis
Externí odkaz:
http://arxiv.org/abs/0809.2986
Publikováno v:
Phys. Rev. Lett. 103, 128104 (2009) (4 pages)
We present experimental evidence for a long-range protein-protein interaction in purple membrane (PM). The interprotein dynamics were quantified by measuring the spectrum of the acoustic phonons in the 2D bacteriorhodopsin (BR) protein lattice using
Externí odkaz:
http://arxiv.org/abs/0803.0959
Publikováno v:
Phys. Rev. E 77, 021905 (2008) (8 pages).
We report an Atomic Force Microscopy (AFM) study on thick multi lamellar stacks of approx. 10 mum thickness (about 1500 stacked membranes) of DMPC (1,2-dimyristoyl-sn-glycero-3-phoshatidylcholine) deposited on silicon wafers. These thick stacks could
Externí odkaz:
http://arxiv.org/abs/0706.0196
Publikováno v:
Phys. Rev. Lett. 97, 048103 (2006)
We have studied the mesoscopic shape fluctuations in aligned multilamellar stacks of DMPC bilayers using the neutron spin-echo technique. The corresponding in plane dispersion relation $\tau^{-1}$(q$_{||}$) at different temperatures in the gel (rippl
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606114