Results 31 to 40 of about 968,741 (248)

The Li + , Na + and K + ion exchange reaction process on the surface of mixed oxide SiO 2 /TiO 2 /Sb 2 O 5 surface prepared by the Sol-Gel processing method

Eclética Química, 2018
The porous mixed oxide SiO 2 /TiO 2 /Sb 2 O 5 obtained by the sol-gel processing method presented a good ion exchange property and a high exchange capacity towards the Li + , Na + and K + ions.
C. U. Ferreira, J. E. Gonçalves, Y. V. Kholin, Y. Gushikem   +3 more
doaj   +1 more source

Improved polyelectrolyte for ion exchange fibers [PDF]

, 1975
Technique increases ion exchange capacity of hollow-fiber-substrate ion exchange resins.
Rembaum, A.
core   +1 more source

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

Non-classical ion-indiffusion processes in quasi-one-dimensional ionic conductor KTiOPO4 [PDF]

APL Materials
Developments in coercive field engineering and waveguide writing via ion-exchange in the ferroelectric ionic-conductor KTiOPO4 (KTP) have led to breakthroughs within the field of nonlinear optics and quantum photonics.
Laura Barrett, Cherrie S. J. Lee, Rama K. Vasudevan, Anton V. Ievlev, Carlota Canalias   +4 more
doaj   +1 more source

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

, 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

Current-induced membrane discharge [PDF]

, 2012
Possible mechanisms for over-limiting current (OLC) through aqueous ion-exchange membranes (exceeding diffusion limitation) have been debated for half a century.
Andersen, M. B., Bazant, M. Z., Biesheuvel, P. M., Bruus, H., Mani, A., van Soestbergen, M.   +5 more
core   +4 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Removal of quaternary ammonium compounds in ion exchange process [PDF]

E3S Web of Conferences, 2019
The study attempted to evaluate the effectiveness of ion exchange process in cationic surfactant (benzalkonium chloride, BAC) removal from model solutions.
Klimonda Aleksandra, Kowalska Izabela
doaj   +1 more source

Ion-exchange hollow fibers [PDF]

, 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

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source