Results 51 to 60 of about 606 (146)

Molecular Dynamics of POPC Phospholipid Bilayers through the Gel to Fluid Phase Transition: An Incoherent Quasi-Elastic Neutron Scattering Study

Journal of Chemistry, 2017
The microscopic dynamics for the gel and liquid-crystalline phase of highly aligned D2O-hydrated bilayers of 1-palmitoyl-oleoyl-sn-glycero-phosphocholine (POPC) were investigated in the temperature range from 248 to 273 K by using incoherent quasi ...
U. Wanderlingh, C. Branca, C. Crupi, V. Conti Nibali, G. La Rosa, S. Rifici, J. Ollivier, G. D’Angelo   +7 more
doaj   +1 more source

Origin of dielectric relaxor behavior in PVDF-based copolymer and terpolymer films

AIP Advances, 2018
Relaxor ferroelectrics exhibit frequency-dispersion of their dielectric permittivity peak as a function of temperature, the origin of which has been widely debated. Microscopic understanding of such behavior for polymeric ferroelectrics has presented new
Abhijit Pramanick, Naresh C. Osti, Niina Jalarvo, Scott T. Misture, Souleymane Omar Diallo, Eugene Mamontov, Y. Luo, Jong-Kahk Keum, Ken Littrell   +8 more
doaj   +1 more source

Diffusion in membranes: Toward a two-dimensional diffusion map

EPJ Web of Conferences, 2015
For decades, quasi-elastic neutron scattering has been the prime tool for studying molecular diffusion in membranes over relevant nanometer distances. These experiments are essential to our current understanding of molecular dynamics of lipids, proteins ...
Toppozini Laura, Garcia-Sakai Victoria, Bewley Robert, Dalgliesh Robert, Perring Toby, Rheinstädter Maikel C.   +5 more
doaj   +1 more source

QENS and the benefit of diffusion measurements over different length scales

Diffusion Fundamentals, 2007
The quasi-elastic neutron scattering (QENS) technique was first used to derive self-diffusivities of hydrocarbons in zeolites, but transport diffusivities of deuterated molecules and of molecules which do not contain hydrogen atoms can now be measured. The technique allows to probe diffusion over length scales ranging from an Å to hundreds of Å.
openaire   +3 more sources

Data Analysis for Time-Resolved QENS Experiments in Biophysics

, 2017
To study the correlation between internal protein dynamics and protein functionality of bacteriorhodopsin, we have performed time-resolved quasielastic neutron scattering (QENS) experiments combined with in situ laser activation of protein function.
Burankova, Tatsiana, Hauß, Thomas, Ollivier, Jacques, Lechner, Ruep E., Dencher, Norbert A., Pieper, Jörg   +5 more
openaire   +2 more sources

Quasielastic Neutron Scattering Reveals Anisotropic Water Transport in Smectite Thin Film

Advanced Materials Interfaces
Clay minerals exhibit complex interactions with water that critically influence their functional properties, yet the anisotropic nature of water dynamics in smectite thin films remains underexplored.
Yiran Jin, Kristoffer Vorm, Will P. Gates, Félix J. Villacorta, Hery Mitsutake, Seiko Ohira‐Kawamura, Takeshi Yamada, Yukinobu Kawakita, Charalampos Tsekeridis, José E. M. Pereira, Masatoshi Arai, Heloisa N. Bordallo   +11 more
doaj   +1 more source

Modulation of Protein Dynamics by Glycerol in Water-Soluble Chlorophyll-Binding Protein (WSCP)

Crystals
Proteins are inherently dynamic entities that rely on flexibility across multiple timescales to perform their biological functions. The surrounding environment plays a critical role in modulating protein dynamics by exerting plasticizing or stabilizing ...
Mina Hajizadeh, Maksym Golub, Inga Bektas, Leonid L. Rusevich, Jan P. Embs, Wiebke Lohstroh, Harald Paulsen, Jörg Pieper   +7 more
doaj   +1 more source

A molecular dynamics study of the diffusion of a hydrocarbon in AIPO 4-5 molecular sieve

Revista CENIC Ciencias Químicas, 2003
En este trabajo se presenta un estudio a partir de técnicas de Dinamica Molecular de la difusión de etano en el tamiz molecular tioo aluminofosfato AIPO4-5. Los calculos se realizaron a diferentes temperaturas y cantidades de moleculas de etano por celda
Jorge Gulin-Gonzalez, Deysi A . Rodriguez, P.F. Demontis, A. Tilocca, G .B. Suffritti   +4 more
doaj  

Structure and Dynamics of Water Confined in Transition Metal Carbide MXenes: Implications for Electrochemical Applications. [PDF]

ACS Appl Nano Mater
Prenger K, Kolesnikov AI, Osti NC, Mamontov E, Keum JK, Littrell KC, Naguib M.   +6 more
europepmc   +1 more source

Concomitant Enhancement of the Reorientational Dynamics of the BH₄ ^- Anions and Mg²⁺ Ionic Conductivity in Mg(BH₄)₂·NH₃ upon Ligand Incorporation. [PDF]

J Phys Chem C Nanomater Interfaces
Grinderslev JB, Amdisen MB, Larsen SR, Trump BA, Karlsson M, Zhou W, Udovic TJ, Cheng Y, Tominaga T, Jensen TR, Andersson MS.   +10 more
europepmc   +1 more source