Results 111 to 120 of about 241,722 (301)

Switching Spike Plasticity Shapes ACE2 Engagement Across SARS‐CoV‐2 Variants

open access: yesAdvanced Science, EarlyView.
Conformational plasticity governs SARS‐CoV‐2 spike function and ACE2 recognition. Using high‐speed AFM and single‐molecule force spectroscopy, we analyzed the ancestral spike and nine variants, revealing progressive rigidification from Delta, variable plasticity in Omicron sublineages, and JN.1 compaction.
Sarah Stainer   +17 more
wiley   +1 more source

Bidirectional Soft Catalysts for Improved Power Performance of Li‐S Batteries

open access: yesAdvanced Science, EarlyView.
A soft polymer‐metal catalyst is integrated into the binder to create a catalytically active microenvironment that accelerates bidirectional sulfur redox kinetics in lithium‐sulfur batteries. A model polyvinyl alcohol‐Cu catalyst enables high areal capacities at demanding current densities and stable cycling in pouch‐cell prototypes at 0.5 C, achieving
Maleesha M. Nishshanke   +7 more
wiley   +1 more source

Effect of Divalent Cations on Proteolysis of Fibrinogen.

open access: yesExperimental Biology and Medicine, 1958
SummaryThe effects of various divalent cations on proteolysis of fibrinogen by trypsin and chymotrypsin were studied. Calcium, Mg, Mn, Co, Zn, and Cd were approximately equally effective in reducing the rate of proteolysis by trypsin. At levels as low as 10-7 M, Ca began to decrease the rate of proteolysis by either trypsin or chymotrypsin, and a 50 ...
openaire   +2 more sources

Studies on Mono and Divalent Cations Effects on Hair Immunization

open access: yes, 2007
Within the studies on the phenomenon of alkali-induced hair immunization, it has been observed that the hair immunization process arising from the action of dibasic alkalis takes place differently than immunization using monobasic alkalis.
CASTIELLO, DOMENICO   +3 more
core  

A Raman spectroscopic study on the active site of sodium cations in the structure of Na2Ti3O7during the adsorption of Sr2 and Ba2 cations

open access: yes, 2010
A detailed study on the structural deformation of trititanate nanofibers after the adsorption of divalent strontium (Sr) and barium (Ba) cationswas conducted by using Raman spectroscopy, X-ray diffraction (XRD) and transmission electron microscopy (TEM)
Waclawik, Eric   +17 more
core   +1 more source

Molecular mechanisms of human P2X3 receptor channel activation and modulation by divalent cation bound ATP

open access: yeseLife, 2019
P2X3 receptor channels expressed in sensory neurons are activated by extracellular ATP and serve important roles in nociception and sensory hypersensitization, making them attractive therapeutic targets.
Mufeng Li   +7 more
doaj   +1 more source

Dual pKa Lipid Nanoparticles for Lung‐tropic mRNA Delivery and pH‐Programmed Endosomal Escape

open access: yesAdvanced Science, EarlyView.
Lipid nanoparticles’ bottleneck lies in low endosomal escape efficiency and liver‐dominant delivery after intravenous administration. To overcome these limitations, we present a stepwise pH‐programmed lipid nanoparticle system enabled by our newly synthesized ionizable lipid.
Seong Gi Lim   +12 more
wiley   +1 more source

Effect of Divalent Cations on DMPC/DHPC Bicelle Formation and Alignment

open access: yes, 2016
Many important classes of biomolecules require divalent cations for optimal activity, making these ions essential for biologically relevant structural studies. Bicelle mixtures composed of short-chain and long-chain lipids are often used in solution- and
Rachel W. Martin (1458529)   +1 more
core   +1 more source

Capacitive Deionization of Divalent Cations for Water Softening Using Functionalized Carbon Electrodes

open access: yes, 2020
Water softening is a relatively untapped area of research in capacitive deionization (CDI). In this work, we demonstrate how an asymmetric combination of oxidized and aminated carbon can be used for selective removal of divalent cations for water ...
Zhi Yi Leong (6524666)   +1 more
core   +1 more source

Heteroatom‐Mediated Covalent Organic Framework Membranes With Nitrogen‐Enriched Nanochannels for Efficient Desalination

open access: yesAdvanced Science, EarlyView.
Heteroatom precursor engineering serves as a molecular‐level strategy to tailor hydrazide monomer reactivity and diffusion kinetics, enabling controlled assembly of highly crystalline COF membranes with ultramicroporous channels. The nitrogen‐enriched nanochannels deliver high water/ion selectivity via simultaneous water transport acceleration and ion ...
Guishan Hu   +8 more
wiley   +1 more source

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