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Showing 1 to 20 of 22 for “"Chloride transport"”.
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Chloride transport through concrete and implications for rapid chloride testing
Word processed copy. Includes bibliographical references (leaves 171-182).
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Sodium chloride transport by Madin Darby canine kidney cyst epithelial cells
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Chloride transport and chloride thresholdvalues-Studies on concretes and mortars with Portland cement and limestone blended cement
… media from the surrounding environment. Chloride initiated reinforcement corrosion is one of the major causes of deterioration of concrete structures. One conflicting issue is how replacing Portland cement with mineral additions influences chloride initiated reinforcement corrosion. This …
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Development of a model for simulation of solute transport in a stream aquifer system
A model for simulation of solute transport in a stream-aquifer system is developed. The model is referred to as: Model for Stream-Aquifer Solute Transport or MSAST. The MSAST is developed by coupling four primary models: The groundwater flow model, MODFLOW-96, the coupled groundwater surface water …
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Design, Synthesis and Characterization of Synthetic Ion Receptors as Biologically Functional Ion Carriers and Channels
The study of proteins and natural molecules that transport cations and anions across biological membranes has been a major focus of biochemistry and cellular biology for more than a century. The function of ion transporters is vital for all known forms of life. Natural and synthetic transporters …
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The novel role of epidermal growth factor (EGF) in the regulation of ion channels in the calu-3 submucosal cell line
… regulator (CFTR) is a cell membrane bound chloride ion channel regulated by cyclic AMP-dependent phosphorylation and levels of intracellular ATP. Mutations in this channel, such as the common deletion of phenylalanine at residue 508 (CFTRΔF508), leads to a decrease in chloride transport …
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Anions in hydrophobic environments: liquid-liquid extraction of sulfate and chloride, and membrane transport of chloride
The transport of an anion across a lipid bilayer or the extraction of an anion into organic solution requires the stabilization of a charged species in a hydrophobic environment. Due to the similar energetic barriers of both processes, liquid-liquid extraction can potentially be used as a model for …
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New hydrogen bonding motifs for anion and neutral guest complexation
… reported. The receptor shows a high affinity for chloride and bicarbonate in MeCN and DCM solutions. It also exhibits strong lipid bilayer chloride transport properties when compared to the parent meso-octamethylcalix[4]pyrrole. A brief investigation into the use of triptycenes as potential …
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Finite Element Modeling of Steel Corrosion in Concrete Structures
… concrete bridges is the possible occurrence of chloride- induced corrosion in prestressing strands and reinforcing bars, which may substantially impact the service life of such structures. Chloride- induced corrosion is a complicated electrochemical process which is affected by heat transfer, …
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Computational Modelling of Fluid and Ion Transport in the Epithelial Cell
… body, and exquisitely control fluid and solute transport between interior and external cavities. Dysregulation results in abnormal fluid secretion rates, leading to disease. We developed a mathematical model of a generic epithelial cell to simulate these transport processes. This system can be …
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Galvanic Lead Corrosion in Potable Water: Mechanisms, Water Quality Impacts, and Practical Implications
… can form at the solder surface, with pH <2.5 and chloride concentrations 11 times higher than bulk water levels. Waters with relatively high chloride tend to sustain high galvanic currents, preventing passivation of the solder surface and contributing to lead contamination of potable water. If the …
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Evaluation of Anion Transporters as Potential Target Sites for Insect and Nematode Control: Toxicological, Electrophysiological, and Molecular Studies
In this study, four anion transporter (AT) blockers, DIDS (4, 4′-diisothiocyanatostilbene-2, 2′-disulfonic acid), 9-AC (anthracene-9-carboxylic acid), NPPB (5-nitro-2-(3-phenylpropylamino) benzoic acid), and IAA-94 (indanyloxy acetic acid) were selected to evaluate ATs as potential target sites for …
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A mechanistic approach For predicting the effect of various factors on partitioning between free and bound chlorides in concrete
The chloride-induced corrosion of reinforcing steel in concrete structures has become a widespread durability problem throughout the world. When concrete structures come in contact with chloride sources, the chloride ions will diffuse through the body of the concrete and ultimately reach the steel. …
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DISRUPTED GABA SIGNALING IN THE VENTRAL TEGMENTAL AREA DRIVES ADDICTION-LIKE BEHAVIORS
… volitional alcohol consumption diminishes chloride transport in VTA GABA neurons. Normalization of this dysregulated chloride homeostasis by pharmacological upregulation of the potassium chloride cotransporter, KCC2, via the agonist CL290, or through serotonin 2A receptor activation is …
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Biofilm and Virulence Regulation of the Cystic Fibrosis Associated Pathogens, Stenotrophomonas maltophilia and Pseudomonas aeruginosa
… regulator (CFTR) which causes defects in chloride transport and leads to build up of mucus in the lungs and disruption of function in various organs. CF patients often suffer from chronic bacterial infections within the lungs, wherein the bacteria persist as a biofilm, leading to poor …
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Novel Insights into the Hydrogeochemical Evolution of Groundwater within the Transboundary Milk River Aquifer
… flow, apparent average groundwater ages, chloride distribution, and groundwater quality evolution remain incompletely understood. Previous conceptual models have not fully reconciled the mismatch between regional hydraulic gradients, north-to-northwest trending geochemical flow paths, old …
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Neutral receptors for anion recognition: synthesis, selectivity studies and transport properties
… receptors and efficient anion transmembrane transporters. Two new asymmetric ureidic receptors L1 (1-(1H-indol-7-yl)-3- (quinolin-2-yl)urea) and L2 (1-(quinolin-2-yl)-3-(quinolin-8-yl)urea), shown in Figure 1, have been synthesised and their affinity towards different anions tested in …
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Computational Simulation of Chloride-Induced Corrosion Damage in Prestressed Concrete Bridge Girders
… analytical tools for the accurate simulation of chloride ingress, corrosion and mechanical damage (cracking) in the concrete, and for the evaluation of the impact of corrosion on the flexural and shear strength of bridge girders. First, an efficient and accurate analytical scheme is formulated to …
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Effect of carbonation on bound chlorides in cementitious and alkali activated binders
… data indicates a mixed performance. <br/><br/>Chloride induced corrosion of reinforced concrete is one of the most common deterioration mechanisms that affect concrete structures exposed to marine or urban environments across the world. The chloride ions that enter concrete can be found either …
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Investigations into mechanisms of magnesium homeostasis in the isolated rat heart
… decreased extracellular sodium [Na *], lithium chloride, specific ion channel inhibitors, osmotic shock, metabolic inhibition and global ischaemia, in the isolated, perfused (5 ml mm", 37°C) and paced (20V, I msec, 4-6 Hz) rat-heart were investigated in an attempt to characterize further, the …
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