Results 81 to 90 of about 558,651 (312)
Crystal structures of two unusual, high oxidation state, 16-electron iridabenzenes
Acta Crystallographica Section E: Crystallographic Communications, 2015 Treatment of carbonyl(1,2-diphenylpenta-1,3-dien-1-yl-5-ylidene)bis(triphenylphosphane)iridium, [IrCO(—C(Ph)=C(Ph)—CH=CH—CH=)(PPh3)2], with either bromine or iodine produced dibromido(1,2-diphenylpenta-1,3-dien-1-yl-5-ylidene)(triphenylphosphine)iridium ...
Daniel T. Chase +2 more
doaj +1 more source
Reductive cyanation of organic chlorides using CO2 and NH3 via Triphos–Ni(I) species
Nature Communications, 2020 Nitriles are key intermediates in production of pharmaceuticals, agrochemicals and organic materials. Here, the authors report a nickel-catalyzed reductive cyanation of organic chlorides with CO2/NH3 and urea as cyanation reagents to afford a broad range
Yanan Dong +3 more
doaj +1 more source
From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS Letters, EarlyView.Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source
Plutonium oxidation states in seawater
Applied Radiation and Isotopes, 2001 Studies of the oxidation-state distribution of plutonium in the ocean illustrate the need to characterize seawater by means of the pH, the E(H), and quanititative complexation parameters. The parameters are combined in an easy-to-use equation that determines the fractions of the four oxidation states.
openaire +3 more sources
FEBS Letters, EarlyView.Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara +3 more
wiley +1 more source
, 2010 Plasma electrolytic oxidation, or PEO, is a surface modification process for the production of ceramic oxide coatings upon substrates of metals such as aluminium, magnesium and titanium.
core +1 more source
DYNAMICS AND CONTROL OF FORCED UNSTEADY-STATE CATALYTIC REACTORS [PDF]
, 2004 This research deals with the dynamics and control of forced unsteady-state catalytic reactors and it is focused on two topics: 1. auto-thermal after-treatment of lean VOC mixtures.
Fissore, Davide
core +1 more source
Zirconium and hafnium catalyzed C–C single bond hydroboration
Nature CommunicationsSelective cleavage and subsequent functionalization of C−C single bonds present a fundamental challenge in synthetic organic chemistry. Traditionally, the activation of C−C single bonds has been achieved using stoichiometric transition-metal complexes ...
Sida Li +3 more
doaj +1 more source
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
, 2021 Assessment of the DNA photo-oxidation and synthetic photocatalytic activity of chromium polypyridyl complexes is dominated by consideration of their long-lived metal-centered excited states.
Igor V. Sazanovich +23 more
core +1 more source