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  • ionic
  • A polyelectrolyte is a polymer in which the polymeric backbone includes ionic sites compensated by counter ions. (diva-portal.org)
  • The model can provide quantitative information of ionic activities, changes in ion concentrations and membrane voltage in the outer segment and the inner compartment. (umsystem.edu)
  • Moreover, the ion-conductive channel is arranged to provide an ionic connection between the source and the target electrodes. (patents.com)
  • In this work a model of ion transport in ionic liquid-based ionic polymer-metal composites (IPMC's) is formulated using Nernst-Planck/Poisson (NPP) theory and numerical simulations are performed using the finite element method. (spie.org)
  • The present work investigates the ionic transport behavior in SPEs based on poly(trimethylene carbonate) (PTMC) and its co-polymer with epsilon-caprolactone (CL) via both experimental and computational approaches. (diva-portal.org)
  • lipid
  • MCS s have many cellular functions and are the sites of lipid and ion transfer between organelles and generation of second messengers. (embopress.org)
  • biology
  • These advancements, as discussed at the 2013 Experimental Biology Meeting in Boston, MA, impact our understanding of oxidative stress in the lung, and, in particular, illustrate that the redox state has profound effects on ion channel and cellular function. (physiology.org)
  • Recent x-ray crystallographic studies have revealed at least one example of a transport protein for each of the predominant ions in biology. (sciencemag.org)
  • chloride
  • This study was conducted to determine whether the major nasal airway ion transport abnormalities in cystic fibrosis (that is, defective cAMP regulated chloride secretion and basal sodium hyperabsorption) are related to the clinical expression of cystic fibrosis and/or to the genotype. (bmj.com)
  • 3- 5 The two major ion transport abnormalities in cystic fibrosis (CF) respiratory epithelium are a defect in cAMP regulated chloride secretion and an acceleration of the rate of basal sodium absorption. (bmj.com)
  • 1. The effects of MgCl 2 on the electrical characteristics and sodium and chloride transport in short-circuited rabbit terminal ileum in vitro were studied. (clinsci.org)
  • polyelectrolytes
  • This thesis focuses on utilizing and controlling the ion transport in polyelectrolytes in electronic devices for different applications. (diva-portal.org)
  • The software framework 'EnPEn' simulates ion transport through arbitrarily layered structures of electrolytes and polyelectrolytes in an aqueous, reacting solution. (rwth-aachen.de)
  • It uses the basic laws of physics and generates a one-dimensional simulation of the ion transport through a larger number of electrolytes (En) or polyelectrolytes (PEn). (rwth-aachen.de)
  • currents
  • It is concluded that the voltage-activated Cl currents flow through the m.r. cells and that swelling is caused by an uptake of Cl ions from the apical bath and K ions from the serosal bath. (springer.com)
  • biological
  • The resulting energy difference is so large that the predominant ions in biological systems-Na + , K + , Ca 2+ , and Cl - -would essentially never cross the membrane unaided. (sciencemag.org)
  • oxidative
  • One method of study has been to examine the effect of toxins on normal cellular processes such as the active transport of sodium and oxidative metabolism. (annals.org)
  • Based on the invited presentations, it is without doubt that advancements have been made within the last decade of research on oxidative stress and ion channel activity. (physiology.org)
  • electron transport
  • In this study, the effect on thin film growth due to an anomalous electron transport, found in high power impulse magnetron sputtering (HiPIMS), has been investigated for the case of a planar circular magnetron. (diva-portal.org)
  • electrodes
  • Understanding and controlling the lithium ion transport in battery electrodes becomes crucial to the design of high performance and durable batteries. (osti.gov)
  • The electrodes and the ion-conductive channel are formed of solid or semi-solid materials which are directly or indirectly attached to a support. (patents.com)
  • In at least one embodiment, the device also includes a device for limiting an electronic current between the source and the target electrodes, such that at least after a voltage is applied across the channel a potential difference between the source and target electrodes is maintained, which potential difference effects ion transport from said source to the target electrode. (patents.com)
  • insights
  • The mutational studies agreed very well with the structure revealed by x-ray crystallography (submitted to Nature) and provided insights into the conformational changes required for active transport. (nii.ac.jp)
  • potassium
  • However, in environments with very little potassium present, this potential cannot maintain inward flux, and active transport through potassium pump systems rapidly takes over to directly drive the uptake of potassium. (eurekalert.org)
  • For the first time, a joint research collaboration between Aarhus University and New York University have visualized a potassium transporting structure where members from channel and pump super-families come together in a large complex to create active transport. (eurekalert.org)
  • One 'pump-like' subunit creates the energy input (similar to a motor), while a 'channel-like' subunit has been re-purposed to function as an active carrier mediating transport of potassium against a 10,000 fold gradient. (eurekalert.org)
  • measurement
  • 16 In contrast, in 51 young CF patients, a recent study showed no correlation between any component of ion transport measurement and respiratory function. (bmj.com)
  • experimental
  • It is found that the simulated spectra can only satisfactorily represent the experimental data if the permeability coefficients of the ions are dependent on the membrane potential. (mendeley.com)
  • systems
  • These are all the hallmarks of active transport known from other pump systems, but here they only work if all elements of the complex are together. (eurekalert.org)
  • Methods
  • Methods are developed for computing the membrane potential from ion concentrations and relating the material and electrical resistances. (umsystem.edu)