426 citations
5 papers
Dynamic nuclear polarization and ESR hole burning in As doped silicon
J. Jarvinen, D. Zvezdov, J. Ahokas +6
We present an experimental study of the Dynamic Nuclear Polarization (DNP) of \si{} nuclei in silicon crystals of natural abundance doped with As in the temperature range 0.1-1 K a…
ESR study of atomic hydrogen and tritium in solid T and T:H matrices below 1K
S. Sheludiakov, J. Ahokas, J. Järvinen +6
We report on the first ESR study of atomic hydrogen and tritium stabilized in a solid T and T:H matrices down to 70mK. The concentrations of T atoms in pure T…
Impact of Cholesterol on Voids in Phospholipid Membranes
Emma Falck, Michael Patra, Mikko Karttunen +2
Free volume pockets or voids are important to many biological processes in cell membranes. Free volume fluctuations are a prerequisite for diffusion of lipids and other macromolecu…
Lessons of Slicing Membranes: Interplay of Packing, Free Area, and Lateral Diffusion in Phospholipid/Cholesterol Bilayers
Emma Falck, Michael Patra, Mikko Karttunen +2
We employ 100 ns molecular dynamics simulations to study the influence of cholesterol on structural and dynamic properties of dipalmitoylphosphatidylcholine (DPPC) bilayers in the…
Molecular Dynamics Simulations of Lipid Bilayers: Major Artifacts due to Truncating Electrostatic Interactions
M. Patra, M. Karttunen, M. Hyvonen +3
We study the influence of truncating the electrostatic interactions in a fully hydrated pure dipalmitoylphosphatidylcholine (DPPC) bilayer through 20 ns molecular dynamics simulati…