Results 51 to 60 of about 5,189,573 (392)

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

open access: yesFEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg   +2 more
wiley   +1 more source

Ion exchange of sodium with hydrochloric acid in ZSM-5 zeolite

open access: yesZaštita Materijala, 2021
ZSM-5 zeolites are highly silicate materials that have significant application in catalytic processes in petrochemistry, especially due to their high selectivity. Most reactions in the petrochemical industry are acid-catalyzed.
Miladin Gligorić   +3 more
doaj   +1 more source

Ion-exchange hollow fibers [PDF]

open access: yes, 1976
An ion-exchange hollow fiber is prepared by introducing into the wall of the fiber polymerizable liquid monomers, and polymerizing the monomers therein to form solid, insoluble, crosslinked, ion-exchange resin particles which embed in the wall of the ...
Klein, E., Rembaum, A., Yen, S. P. S.
core   +1 more source

Ion-Exchanged Waveguides in Glass Doped with PbS Quantum Dots [PDF]

open access: yes, 2004
The lowest-loss (≤1 dB/cm) ion-exchanged waveguides in glass doped with PbS quantum dots are presented. Near-field mode profile and refractive index profile using the refracted near-field technique were measured for these waveguides.
Axel Schülzgen   +10 more
core   +3 more sources

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

Water, electricity and ion exchange; how Hamish Small sustained the evolution of ion chromatography

open access: yesHeliyon, 2021
Since the development of synthetic ion exchange resins in 1935, the electrochemical properties of these unique materials have intrigued researchers. In 1951, Hamish Small was introduced to synthetic ion exchange resin when he studied the electromigration
John M. Riviello
doaj  

Separation of traces of metal ions from sodium matrices [PDF]

open access: yes, 1969
Method for isolating metal ion traces from sodium matrices consists of two extractions and an ion exchange step.
Korkisch, J., Orlandini, K. A.
core   +1 more source

Direct Measurement of Vanadium Crossover in an Operating Vanadium Redox Flow Battery [PDF]

open access: yes, 2013
Measurements of Vanadium diffusion coefficients for transport across cation exchange membranes using dialysis cells have been reported in the literature.
Meyers, Jeremy P., Sing, David Charles
core   +1 more source

Disruption of SETD3‐mediated histidine‐73 methylation by the BWCFF‐associated β‐actin G74S mutation

open access: yesFEBS Letters, EarlyView.
The β‐actin G74S mutation causes altered interaction of actin with SETD3, reducing histidine‐73 methylation efficiency and forming two distinct actin variants. The variable ratio of these variants across cell types and developmental stages contributes to tissue‐specific phenotypical changes. This imbalance may impair actin dynamics and mechanosensitive
Anja Marquardt   +8 more
wiley   +1 more source

Thermodynamic Model of Ion-Exchange Process as Exemplified by Cerium Sorption from Multisalt Solutions

open access: yesЗаписки Горного института, 2019
A complex heterogeneous process of ion exchange can be defined with an isotherm-isobar equation of the chemical reaction, which describes differential affinity between the process and its effect – the law of mass action.
O. V. Cheremisina   +3 more
doaj   +1 more source

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