In biology, regulation of ionic transport and pH is critical for the functioning of biological cells and tissues and for the transmission of nerve impulses. This regulation is accomplished by proteins called ion channels that transport or pump specific ions in and out of the cell. In geology, ...
The nanosegregated structures of columnar, smectic and bicontinuous cubic liquid crystals can provide well-organized, nano- and sub-nanosized 1D, 2D and 3D channels capable of ion and electron transport. The molecular shape, intermolecular interactions and nanosegregation of the molecular structures can...
We develop a microscopic theory for ion transport across a transmembrane channel with an internal binding site. The ion flux is determined by the rate constants for binding to the internal site from the two sides of the membrane and the corresponding unbinding rate constants. The binding rate co...
Ions, their transport across membranes, and their flow through specialized ion channels are central to the understanding of brain function, normal and pathological. The first part of this book deals with the regulation of ions in brain extra- and intracellular fluids. Regulation is effected by the...
Transport mechanisms in nanopores and nanochannels: can we mimic nature? Mater. Today 18, 131–142 (2015). Article CAS Google Scholar Horn, R., Roux, B. & Åqvist, J. Permeation redux: thermodynamics and kinetics of ion movement through potassium channels. Biophys. J. 106, 1859–1863 ...
Ion hydration and transport at interfaces are relevant to a wide range of applied fields and natural processes. Interfacial effects are particularly profound in confined geometries such as nanometre-sized channels, where the mechanisms of ion transport in bulk solutions may not apply. To correlate ato...
"that picture turns out to be wrong on an atomic scale," Poletayev said, "but that's not the fault of the people who came to that conclusion. It's just that researchers have been investigating ionic transport with macroscopic tools for so long, and they couldn't observe what we saw in...
EPFL researchers have shown that a law of physics having to do with electron transport at nanoscale can also be analogously applied to the ion transport. This discovery provides insight into a key aspect of how ion channels function within our living cells. © Alban Kakulya/ 2016 EPFL The ...
Ion hydration and transport at interfaces are relevant to a wide range of applied fields and natural processes1–5. Interfacial effects are particularly profound in confined geometries such as nanometre-sized channels6–8, where the mechanisms of ion tra
Ion Transport through Membrane-Spanning Nanopores Studied by Molecular Dynamics Simulations and Continuum Electrostatics Calculations Narrow hydrophobic regions are a common feature of biological channels, with possible roles in ion-channel gating. We study the principles that govern ion ... C Peter,G ...