Results 51 to 60 of about 82,722 (294)

Synthesis, Characterization and Transport Properties of Novel Ion-exchange Nanocomposite Membrane Containing In-situ Formed ZnO Nanoparticles [PDF]

Journal of Nanostructures, 2015
A  new  type  of  cation-exchange  nanocomposite  membranes  was prepared  by  in-situ  formation  of  ZnO  nanoparticles  in  a  blend containing  sulfonated  poly  (2,6-dimethyl-1,4-phenylene  oxide)  and sulfonated polyvinylchloride  via  a  simple ...
F. Heidary, A. R. Khodabakhshi, A. Nemati Kharat   +2 more
doaj   +1 more source

Features of Thermomechanical Stability of Anionic–Cation Exchange Matrix “Polikon AC” on Viscose Non-Woven Materials

, 2021
The thermomechanical stability of the anion–cation exchange matrix “Polikon AC” on viscose nonwoven materials is investigated. In this work, a molecular model of a solvation environment for experimentally obtained “Polikon AC” mosaic membranes is refined.
Sergey Tsyplyayev, Tamara Druzhinina, Vladimir Cherkasov, Marina Kardash, Sergey Korchagin, Denis Terin   +5 more
core   +1 more source

Role and variations of supernatant compounds in submerged membrane bioreactor fouling [PDF]

, 2005
Many studies have been performed to analyze the influence of extracellular polymeric substances (EPS) in membrane fouling. Most of these works deal with the impact of solid contents in the fouling, and some of them have studied the role ofsupematant ...
Albasi, Claire, Hernandez Rojas, Maria, Schetrite, Sylvie, Van Kaam, Romuald   +3 more
core   +1 more source

Understanding of Adsorption and Desorption Mechanisms of Anthocyanins and Proanthocyanidins on Heterogeneous and Homogeneous Cation-Exchange Membranes

, 2021
The presence of membrane fouling is the main drawback in membrane processes, and it is related to the premature use and high cost for the replacement of membranes.
Ksenia Tsygurina, Véronique Perreault, Veronika Sarapulova, Laurent Bazinet, Natalia Pismenskaya   +4 more
core   +1 more source

Modification of Nafion Membranes by IL-Cation Exchange: Chemical Surface, Electrical and Interfacial Study

International Journal of Electrochemistry, 2012
Bulk and surface changes in two proton-exchange membranes (Nafion-112 and Nafion-117) as a result of the incorporation of the IL-cation n-dodecyltriethylammonium (or DTA+) by a proton/cation exchange mechanism after immersion in a DTA+ aqueous solution ...
V. Romero, M. V. Martínez de Yuso, A. Arango, E. Rodríguez-Castellón, J. Benavente   +4 more
doaj   +1 more source

Anion- or Cation-Exchange Membranes for NaBH₄/H₂O₂Fuel Cells?

Membranes, 2012
Direct borohydride fuel cells (DBFC), which operate on sodium borohydride (NaBH₄) as the fuel, and hydrogen peroxide (H₂O₂) as the oxidant, are receiving increasing attention.
César A. C. Sequeira, Diogo M. F. Santos, Ana L. Morais, Biljana Šljukić   +3 more
doaj   +1 more source

Graphene modified fluorinated cation-exchange membranes for proton exchange membrane water electrolysis [PDF]

International Journal of Hydrogen Energy, 2019
Abstract One of major current technical challenges in proton exchange membrane water electrolysis (PEMWE) is the limited proton conductivity. Nowadays, graphene is considered one of the most promising candidates for improving the ionic transport properties, isotopic selectivity and proton conductivity throughout the unique two-dimensional structure ...
Daniela Ion-Ebrasu, Bruno G. Pollet, Adnana Spinu-Zaulet, Amalia Soare, Elena Carcadea, Mihai Varlam, Simona Caprarescu   +6 more
openaire   +2 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source