Results 51 to 60 of about 26,797 (254)

Engineering Metal‐Pocket Cooperativity in Single‐Atom COF Nanozymes for Selective Cascade Catalysis

open access: yesAdvanced Materials, EarlyView.
A multilevel programming strategy is developed to engineer single‐atom COF nanozymes with tunable metal centers and chiral pockets inspired by heme–pocket cooperativity. This approach enables controlled metal–pocket interplay for asymmetric cascade catalysis, delivering high activity, selectivity, and recyclability in an asymmetric oxidation–aldol ...
Ziping Li   +7 more
wiley   +1 more source

Effect of adding Manganese sulfate for Diet on the hormonal and Histological response of aged Roosters exposed to Heat stress

open access: yesKufa Journal for Agricultural Sciences
This study was conducted in poultry farm of the college of Agriculture - Al-Qasim Green University, the effect of adding manganese sulfate for diet on the hormonal and histological response of aged roosters exposed to heat stress, 30 of Hy-Line roosters
Salman K.A.A   +2 more
doaj   +1 more source

Characterization of a Novel Manganese Peroxidase-Lignin Peroxidase Hybrid Isozyme Produced by Bjerkandera Species Strain BOS55 in the Absence of Manganese [PDF]

open access: yesJournal of Biological Chemistry, 1998
A novel manganese-dependent peroxidase (MnP) isozyme produced in manganese-free cultures of Bjerkandera sp. strain BOS55 was purified and characterized. The production of the enzyme was greatly stimulated by the exogenous addition of various physiological organic acids such as glycolate, glyoxylate, and oxalate.
Mester, T., Field, J.A.
openaire   +3 more sources

Advanced Materials for Biologics Delivery to Brain Tumors

open access: yesAdvanced Materials, EarlyView.
Material innovation is central to unlocking the therapeutic potential of biologics against many central nervous system diseases, including brain cancer. By engineering carriers with controlled transport, targeting, and release properties, advanced materials can overcome the blood–brain barrier and tumor microenvironment, improving the delivery of ...
Yuran Feng   +4 more
wiley   +1 more source

Manganese peroxidase catalyzed removal of anilines from water

open access: yesChemical Engineering Journal. Green and Sustainable
Anilines are acutely toxic, carcinogenic, and persistent pollutants; conventional treatments suffer from incomplete destruction, high energy demands, large sludge volumes, and/or the generation of toxic intermediates.
Samira Narimannejad   +3 more
doaj   +1 more source

A valuable peroxidase activity from the novel species Nonomuraea gerenzanensis growing on alkali lignin

open access: yesBiotechnology Reports, 2017
Degradation of lignin constitutes a key step in processing biomass to become useful monomers but it remains challenging. Compared to fungi, bacteria are much less characterized with respect to their lignin metabolism, although it is reported that many ...
Carmine Casciello   +6 more
doaj   +1 more source

Synthesis and Characterization of Biocompatible Manganese‐Doped Titania Nanoparticles and Its Application to Single‐Cell Nanoencapsulation

open access: yesAdvanced Materials Interfaces, EarlyView.
Biocompatible Mn‐doped TiO2 nanozymes integrate TiO2 stability with Mn redox activity, enabling dopamine‐mediated cell‐surface polymerization and single‐cell nanoencapsulation while maintaining high colloidal stability, low ROS generation, and excellent cellular compatibility.
Filip Kozłowski   +6 more
wiley   +1 more source

CD9+ B Cells Induce T Follicular Helper Cell Apoptosis to Regulate Germinal Center Regression

open access: yesAdvanced Science, EarlyView.
A unique subset of CD9+ B cells regulates germinal center B (GC‐B) cell regression by inducing T follicular helper (Tfh) cell apoptosis through multiple signaling pathways, such as ALCAM‐CD6. FOXP1 plays a key role in GC‐B cell differentiation. These findings clarify mechanisms of GC degeneration and termination and offer potential targets for adenoid ...
Wenjing Liao   +27 more
wiley   +1 more source

Obtención de Extractos Enzimáticos con Actividad Celulolítica y Ligninolítica a Partir del Hongo Pleurotus Ostreatus 404 y 2171 en rastrojo de Maíz

open access: yesRevista Politécnica, 2014
Se determinaron los días de máxima generación de tres actividades enzimáticas: celulolítica, manganeso peroxidásica y lignino peroxidásica en los extractos obtenidos durante la fermentación en rastrojo de maíz de dos cepas del hongo comestible Pleurotus ...
Neyda Fernanda Espín Félix   +2 more
doaj  

Modulation of miR‐23b Wnt/β‐catenin Axis Strengthens Endothelial Barrier Properties

open access: yesAdvanced Science, EarlyView.
Early blood‐brain barrier (BBB) disruption contributes to stroke and CNS disease pathology. miR‐23b was identified as a regulator of BBB integrity in brain endothelial cells. Inhibition of miR‐23b enhanced barrier‐associated properties, promoted repair‐related signaling, and reduced BBB leakage in experimental stroke models, supporting further ...
Victor Anthony Martinez   +16 more
wiley   +1 more source

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