Results 21 to 30 of about 160,076 (212)

Influence of Ionic Liquids on the Selectivity of Ion Exchange-Based Polymer Membrane Sensing Layers

open access: yesSensors, 2016
The applicability of ion exchange membranes is mainly defined by their permselectivity towards specific ions. For instance, the needed selectivity can be sought by modifying some of the components required for the preparation of such membranes.
Lukasz Mendecki   +4 more
doaj   +1 more source

A Study on Selectivity and Temperature Coefficients of the Chloride Ion Sensors With RuOx Thin Film

open access: yesIEEE Journal of the Electron Devices Society, 2019
This paper investigated the response time, chloride selectivity, and temperature coefficients of the arrayed flexible ruthenium oxide chloride ion sensor in sodium chloride (NaCl) solutions with concentrations from 10-5 M to 1 M.
Shi-Chang Tseng   +8 more
doaj   +1 more source

Thin-film composite membrane breaking the trade-off between conductivity and selectivity for a flow battery

open access: yesNature Communications, 2020
Low-cost flow batteries with high power density are promising for energy storage, but membranes with simultaneously high ion conductivity and selectivity should be developed.
Qing Dai   +8 more
doaj   +1 more source

A novel high-affinity potassium transporter SeHKT1;2 from halophyte Salicornia europaea shows strong selectivity for Na+ rather than K+

open access: yesFrontiers in Plant Science, 2023
High-affinity K+ transporters (HKTs) are known as transmembrane cation transporters and are involved in Na+ or Na+-K+ transport in plants. In this study, a novel HKT gene SeHKT1;2 was isolated and characterized from the halophyte, Salicornia europaea. It
Yakupjan Haxim   +9 more
doaj   +1 more source

The ion selectivity filter is not an activation gate in TRPV1-3 channels

open access: yeseLife, 2019
Activation of TRPV1 channels in sensory neurons results in opening of a cation permeation pathway that triggers the sensation of pain. Opening of TRPV1 has been proposed to involve two gates that appear to prevent ion permeation in the absence of ...
Andrés Jara-Oseguera   +2 more
doaj   +1 more source

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

open access: yesFEBS 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   +3 more
wiley   +1 more source

MXene membrane with directionally functionalized channel entrances for enhanced ion selectivity and permeability

open access: yesNature Communications
Ion-separation membranes that combine high selectivity with high permeability are important for various practical applications. Molecular functionalization of sub-nanochannel membranes is widely used to improve ion separation selectivity; however, it ...
Hang Yu   +9 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Research progress in ion selective nano-ions channels for water treatment

open access: yesGongye shui chuli
Selective ion removal technology becomes an emerging water treatment method for nutrient recovery in wastewater, water softening, extraction of key minerals from brine, and utilization of industrial wastewater.
LI Hanfei, TIAN Binghui
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

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