• The uncompensated positive charges outside the cell, and the uncompensated negative charges inside the cell, physically line up on the membrane surface and attract each other across the lipid bilayer . (wikipedia.org)
  • Furthermore, using DelPhi to assign different dielectric constants for different regions of the LPS membranes, it was investigated whether a single frame structure before MD simulations with appropriate dielectric constants for the lipid tails, inner, and the external leaflet regions, can deliver the same average electrostatic potential distribution as obtained from the MD-generated ensemble of structures. (diva-portal.org)
  • In membrane biophysics it is sometimes used interchangeably with cell potential, but is applicable to any lipid bilayer or membrane . (academickids.com)
  • From the properties of lipid membranes containing alamethicin in a wide variety of electrolytes, and from other evidence, it is concluded that the polypeptide reacts to the electric field more probably because it has a large dipole moment than because it binds ions. (royalsocietypublishing.org)
  • Moreover, no attempts have allowed for the targeted insertion of rod-shaped nanoparticles into the lipid bilayer, which would be particularly useful for measuring membrane voltage. (universityofcalifornia.edu)
  • I was not even satisfied with what my standard med school physiology texts taught me about membrane equilibria, so I had done some research then. (physicsforums.com)
  • Together, these findings underscore the concept that the cell envelope and membrane vesicles contain crucial, yet under-explored determinants of GC physiology, which may represent promising targets for designing new therapeutic interventions. (mcponline.org)
  • The fundamental cellular parameters of cell volume ( V c ) and resting membrane potential ( E m ) profoundly influence cellular, tissue, organ and whole-body physiology. (bl.uk)
  • In this talk, I will discuss the performance of the membranes towards removal of natural organic matter such as tannic acid, and perfluoro-octanoic acid (PFOA) - a typical compound associated with degradation of fluorinated organics. (aiche.org)
  • The need was to find a way of controlling the architecture of membrane micro-structures in a predictable way so that the performance of the membranes can be predicted and controlled from the outset of designing the membranes," said Dr. Darrell Patterson, the director for the Centre for Advanced Separations Engineering at the University of Bath, and an author of the study. (watec-israel.com)
  • Production of large unilamellar vesicles by a rapid extrusion procedure: characterization of size distribution, trapped volume and ability to maintain a membrane potential. (semanticscholar.org)
  • Development activities at Applied Biomimetics Inc. focuses on incorporation of aquaporins in colloidal polymer vesicles and development of a coating platform using colloidal particles as membrane building blocks. (techconnectworld.com)
  • Despite the implied role of the GC cell envelope and membrane vesicles in colonization and infection of human tissues and cell lines, comprehensive studies have not been undertaken to elucidate their constituents. (mcponline.org)
  • Focusing on one of them, a homolog of an outer membrane protein LptD, we demonstrated that its depletion caused loss of GC viability. (mcponline.org)
  • Thus, when the electrode is immersed in a solution of pH 7, the sum of these fixed voltages approximately balances the voltage developed on the outer surface of the glass membrane and a separate reference element. (google.com)
  • This second generation integrated lab-on-a-chip system developed here shows enhanced structural durability and reproducibility while increasing the sensitivity to changes in mitochondrial membrane potential by an order of magnitude as compared to first generation technologies. (rsc.org)
  • Mollica MP, Iossa S, Liverini G, Soboll S. Steady state changes in mitochondrial electrical potential and proton gradient in perfused liver from rats fed a high fat diet. (harvard.edu)
  • The Ca 2+ channels are most probably activated by the depolarizing receptor potentials resulted from the PFOS-induced activation of chemoreceptors. (go.jp)
  • The membrane then becomes capable of selectively removing and recovering the molecules and particles that cause fouling and utilizing materials that don't age, to increase the lifespan of a membrane. (watec-israel.com)
  • Fast-response probes are commonly used to image electrical activity from intact heart tissues or measure membrane potential changes in response to pharmacological stimuli. (thermofisher.com)
  • Applying that to a clinical scenario you can see why hyperkalemia and hypokalemia would have a bigger consequence in tissues like muscle,heart and neurons, which required a certain resting potential in order to function properly. (valuemd.com)
  • In apoptotic cells, the mitochondrial membrane potential collapses, which results in failure to retain JC-10 dye and the dye returns to its monomeric green form (EX/Em= 490/525 nm) in the cytosol. (gbiosciences.com)
  • Importantly, mutating the extended N-terminal region to reduce its amphipathicity resulted in the accumulation of GFP in the cytosol of the chlamydiae and not in the membrane. (asm.org)