Results 11 to 20 of about 8,010 (187)

Environmentally-safe anion exchange membranes of PVA/PDDA/SiO2composite for reverse electrodialysis

open access: yesInternational Journal of Thermofluids, 2023
Anion Exchange Membranes (AEMs) are positively charged polymer membrane used in many applications. In RED systems, AEMs could be used to separate ions to produce energy, and on the other hands remove unwanted molecules in wastewater.
Yusuf Wibisono   +5 more
doaj   +1 more source

Cation Exchange Nanocomposite Membrane Containing Mg(OH)2 Nanoparticles: Characterization and Transport Properties [PDF]

open access: yesJournal of Nanostructures, 2018
In this study, ion exchange nanocomposite membranes was prepared by addition of Mg(OH)2 nanoparticles to a blend containing sulfonated polyphenylene oxide and sulfonated polyvinylchloride via a simple casting method.
Alireza Khodabakhshi   +2 more
doaj   +1 more source

Advanced Development of Molecularly Imprinted Membranes for Selective Separation

open access: yesMolecules, 2023
Molecularly imprinted membranes (MIMs), the incorporation of a given target molecule into a membrane, are generally used for separating and purifying the effective constituents of various natural products. They have been in use since 1990.
Jiahe Chen, Maobin Wei, Minjia Meng
doaj   +1 more source

Correlations between Properties of Pore-Filling Ion Exchange Membranes and Performance of a Reverse Electrodialysis Stack for High Power Density

open access: yesMembranes, 2021
The reverse electrodialysis (RED) stack-harnessing salinity gradient power mainly consists of ion exchange membranes (IEMs). Among the various types of IEMs used in RED stacks, pore-filling ion exchange membranes (PIEMs) have been considered promising ...
Hanki Kim   +6 more
doaj   +1 more source

The Glomerular Endothelium Restricts Albumin Filtration

open access: yesFrontiers in Medicine, 2021
Inflammatory activation and/or dysfunction of the glomerular endothelium triggers proteinuria in many systemic and localized vascular disorders. Among them are the thrombotic microangiopathies, many forms of glomerulonephritis, and acute inflammatory ...
Barbara J. Ballermann   +2 more
doaj   +1 more source

Poly(alkyl-biphenyl pyridinium)-Based Anion Exchange Membranes with Alkyl Side Chains Enable High Anion Permselectivity and Monovalent Ion Flux

open access: yesMembranes, 2023
Poly(alkyl-biphenyl pyridinium)-based anion exchange membranes with alkyl side chains were synthesized for permselective anion separation. By altering the length of the grafted side chain, the hydrophilicity and other attributes of the membranes could be
Jin Yang   +4 more
doaj   +1 more source

Permselectivity of the glomerular wall examined with iron compound tracer [PDF]

open access: yes, 1977
Rat kidney endothelial cell morphology was examined after introducing iron colloid particles of positive or negative charge to investigate the relationship between the electric charge and permeation through the glomerular capillary.
Hirata, Kooiti
core   +1 more source

Permselectivity in thin membrane nephropathy. [PDF]

open access: yesJournal of Clinical Investigation, 1994
The glomerular permselectivity to polydisperse neutral dextrans was compared in 6 patients with thin membrane nephropathy (TMN) and 10 healthy controls. Despite having normal renal hemodynamics and minimal proteinuria, the patients with TMN had significantly increased fractional clearance of neutral molecules with Stokes radius > 42 A.
D M, Thomas   +3 more
openaire   +2 more sources

Electrodialytic Energy Storage System: Permselectivity, Stack Measurements and Life-Cycle Analysis

open access: yesEnergies, 2020
Reverse electrodialysis and electrodialysis can be combined into a closed energy storage system, allowing for storing surplus energy through a salinity difference between two solutions.
Kjersti Wergeland Krakhella   +5 more
doaj   +1 more source

Comparison between molecularly imprinted polymers and β-cyclodextrin as ionophores, in presence of nano carbon dots water channels and application in marketed product and environmental samples

open access: yesArchives of Pharmaceutical Sciences Ain Shams University, 2022
Large molecules pass the biological membranes through accessory elements, either carriers (ionophores) and/or water channels. Ionophores shield the charge of the target ion, enabling it to cross the membrane to be released on the other side.
Miriam Ayad   +4 more
doaj   +1 more source

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