نتایج جستجو برای: potassium ion
تعداد نتایج: 272409 فیلتر نتایج به سال:
Background Peritoneal lavage with distilled water has been used for surgeries of various cancers to reduce peritoneal recurrence. This study examined whether blockade of potassium ion transports enhances hypotonicity-induced cytocidal effects in gastric cancer (GC). Results A potassium channel blocker inhibited the occurrence of regulatory volume decrease (RVD) induced by mild hypotonic stimu...
Potassium-Ion Batteries In article number 2300442, Ji-Won Jung, Jihan Kim, Il-Doo and co-workers show that fluorinated arenes in covalent organic frameworks enhance their electrochemical activity stabilize the electrode-electrolyte interfaces, enabling a breakthrough design for electrodes with significantly increased ion storage capacity greatly improved cyclic stability. The unique role of F a...
Bacillus alcalophilus AV1934, isolated from human feces, was described in 1934 before microbiome studies and recent indications of novel potassium ion coupling to motility in this extremophile. Here, we report draft sequences that will facilitate an examination of whether that coupling is part of a larger cycle of potassium ion-coupled transporters.
Potassium channels are trans-membrane proteins, which selectively transport K+ ions across cell membranes and play a key role in regulating the physiology of excitability cells and signal transduction pathways. Bothutous Schach (BS) scorpion venom consists of several polypeptides that could modulate ion channels. In this study, the effects of BS crude venom on passive and active electrophysiolo...
Ion channels lower the energetic barrier for ion passage across cell membranes and enable the generation of bioelectricity. Electrostatic interactions between permeant ions and channel pore helix dipoles have been proposed as a general mechanism for facilitating ion passage. Here, using genetic selections to probe interactions of an exemplar potassium channel blocker, barium, with the inward re...
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 8103 wileyonlinelibrary.com High performance cathodes, including metal oxides,[11–14] phosphates,[15–18] hexacyanometalates,[19–21] sulfur,[22,23] metal sulfides,[24,25] and organic materials,[26–28] have been reported, and porous carbonaceous materials and metallic Sb and Sn anodes also show high capacity and long cycling stability.[29–34] In c...
Voltage-gated ion channels are important mediators of physiological functions in the central nervous system. The cyclic activation of these channels influences neurotransmitter release, neuron excitability, gene transcription, and plasticity, providing distinct brain areas with unique physiological and pharmacological response. A growing body of data has implicated ion channels in the susceptib...
Potassium-Ion Storage In article number 2203976, Songping Wu, Zhiguang Xu, Yurong Yan, and co-workers successfully fabricate 2D [email protected] carbon sheets with a powerful BiOC bond internal void space for achieving ultrahigh rate stable potassium-ion storage. The influence of interface microstructure chemical coupling on the electrochemical properties are revealed by ex/in-situ technique...
Potassium ion sensors are important for the study of concentration profiles in tissues. The synthesis a cryptand suited potassium ions and crystal structure it with chelated sodium presented.
We investigate the effects of channel noise on firing coherence of Watts-Strogatz small-world networks consisting of biophysically realistic HH neurons having a fraction of blocked voltage-gated sodium and potassium ion channels embedded in their neuronal membranes. The intensity of channel noise is determined by the number of non-blocked ion channels, which depends on the fraction of working i...
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