Results 11 to 20 of about 147,621 (248)

Reactional Processes on Osmium–Polymeric Membranes for 5–Nitrobenzimidazole Reduction

open access: yesMembranes, 2021
Membranes are associated with the efficient processes of separation, concentration and purification, but a very important aspect of them is the realization of a reaction process simultaneously with the separation process.
Aurelia Cristina Nechifor   +11 more
doaj   +1 more source

Dioxygen Activation by Internally Aromatic Metallacycle: Crystallographic Structure and Mechanistic Investigations

open access: yesiScience, 2020
Summary: Mononuclear metal-peroxo species are invoked as the key intermediates in metalloenzymatic or synthetic catalysis. However, either transience or sluggishness reactivity of synthetic analogs of metal-peroxo species impedes our understanding of ...
Zhihong Deng   +7 more
doaj   +1 more source

Interstitial boron-triggered electron-deficient Os aerogels for enhanced pH-universal hydrogen evolution

open access: yesNature Communications, 2022
While noble metals can be active electrocatalysts for producing renewable H2, there are relatively few works examining osmium materials. Here, the authors prepare boron-doped osmium aerogels for H2 evolution electrocatalysis plus examine the mechanism ...
Yinghao Li   +6 more
doaj   +1 more source

Process and kinetic analysis of osmium prepared by microwave sintering

open access: yesFenmo yejin jishu, 2021
Os sintered body was prepared by microwave sintering process. The influences of the green compact pressure and the microwave sintering parameters (heating rate, sintering temperature, and holding time) on the microstructure and relative density of Os ...
LIU Wei   +9 more
doaj   +1 more source

Seawater Chemistry and Hydrothermal Controls on the Cenozoic Osmium Cycle

open access: yesGeophysical Research Letters, 2021
Osmium isotope ratios are a key tool to track changes in global weathering and carbon cycle evolution through time. Long‐term changes in seawater Os isotope records over the Cenozoic have been used to argue for changes in weathering from increased uplift,
Joachim A. R. Katchinoff   +4 more
doaj   +1 more source

Anti-colorectal cancer activity of an organometallic osmium arene azopyridine complex [PDF]

open access: yes, 2011
This first in vivo antitumour activity for an organometallic osmium arene complex, [Os(eta(6)-p-cym)(4-(2-pyridylazo)-N,N-dimethylaniline)I]PF(6), is reported. The complex delays the growth of HCT116 human colon cancer xenografts in mice, with negligible
Cooper, Patricia A.   +6 more
core   +1 more source

Controlling platinum, ruthenium, and osmium reactivity for anticancer drug design [PDF]

open access: yes, 2009
The main task of the medicinal chemist is to design molecules that interact specifically with derailed or degenerating processes in a diseased organism, translating the available knowledge of pathobiochemical and physiological data into chemically ...
Bruijnincx, Pieter C. A., Sadler, P. J.
core   +1 more source

SYNTHESIS OF OSMIUM COMPLEXES ON THE BASE OF NEW POLYMERS CONTAINING AMINE AND CARBOXYLIC FUNCTIONAL GROUPS

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2016
Osmium complexes by interaction osmium bipyridyl chloride (Os(bipy)2Cl2) and dimmethylbipyridil chloride (Os(dimebipy)2Cl2) with a number of synthesised polymers on the base of 1-(3-aminepropyl)-imidazole, methylmethacrylate, acrylic acid and ...
Yu. M. Sultanov
doaj   +1 more source

Tamoxifen-like metallocifens target thioredoxin system determining mitochondrial impairment leading to apoptosis in Jurkat cells [PDF]

open access: yes, 2017
Tamoxifen-like metallocifens (TLMs) of the group-8 metals (Fe, Ru, and Os) show strong anti-proliferative activity on cancer cell lines resistant to apoptosis, owing to their unique redox properties. In contrast, the thioredoxin system, which is involved
Alberto Bindoli   +9 more
core   +3 more sources

Arene-Osmium(II) Complexes in Homogeneous Catalysis

open access: yesInorganics, 2021
Although the application of arene-osmium(II) complexes in homogeneous catalysis has been much less studied than that of their ruthenium analogues, different works have shown that, in some instances, a comparable or even superior effectiveness can be ...
Pascale Crochet, Victorio Cadierno
doaj   +1 more source

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