نتایج جستجو برای: ruthenium

تعداد نتایج: 8195  

Journal: :Dalton transactions 2009
Kenneth D Camm Ahmed El-Sokkary Andrew L Gott Peter G Stockley Tamara Belyaeva Patrick C McGowan

A number of new ruthenium compounds have been synthesised, isolated and characterised, which exhibit excellent cytotoxicity against a number of different human tumour cell lines including a defined cisplatin resistant cell line and colon cancer cell lines. Addition of hydrophobic groups to the ruthenium molecules has a positive effect on the cytotoxicity values. Evidence is provided that, after...

Journal: :Molecules 2017
Ileana Dragutan Valerian Dragutan Albert Demonceau

The organic chemistry of ruthenium has been one of the most vigorously growing research areas over the past decades. Considerable effort has been extended towards the design and application of a broad series of ruthenium complexes, which culminated with the development by Ryoji Noyori (2001 Nobel Prize for Chemistry) of chiral ruthenium catalysts for stereoselective hydrogenation reactions [1],...

Journal: :Metal-Based Drugs 2000
L. Messori F. Gonzales Vilchez R. Vilaplana F. Piccioli E. Alessio B. Keppler

Presently, there is large interest in analysing the interactions in vitro with plasma proteins of some novel antitumor ruthenium(III) complexes that are in preclinical or clinical phase. The joint application of separation and spectroscopic techniques provides valuable information on the nature and the properties of the resulting ruthenium/protein adducts. Recent work carried out in our laborat...

Journal: :journal of research in medical sciences 0
shyam sunder anchuri department of pharmacology and pharmaceutical chemistry, s. r college of pharmacy, ananthasagar, warangal and department of pharmacy, acharya nagarjuna university, guntur, india satyavathi dhulipala department of pharmacology, teegala krishna reddy college of pharmacy, meerpet, hyderabad, andhra pradesh, india sreekanth thota department of pharmacology and pharmaceutical chemistry, s. r college of pharmacy, ananthasagar, warangal,india rajeshwar yerra department of pharmacology and pharmaceutical chemistry, s. r college of pharmacy, ananthasagar, warangal,india jan balzarini department of microbiology and immunology, rega institute for medical reasearch, katholieke universiteit leuven, , belgium erik d. clercq department of microbiology and immunology, rega institute for medical reasearch, katholieke universiteit leuven, , belgium

normal 0 false false false en-us x-none ar-sa background: from the thousands of years, metal compounds have been used in medicine for treatment of various diseases including various types of cancers. ruthenium was seen as a promising metal due to its similar kinetics to platinum and its lower toxicity. therefore, we aimed to evaluate the newer mononuclear ruthenium (ii) compounds for antinocice...

Journal: :Chemical communications 2010
Michele Orlandi Roberto Argazzi Andrea Sartorel Mauro Carraro Gianfranco Scorrano Marcella Bonchio Franco Scandola

The tetraruthenium polyoxometalate water oxidation catalyst 1 performs very fast hole scavenging from photogenerated Ru(iii) polypyridine complexes, both in homogeneous solution and at a sensitized nanocrystalline TiO(2) surface.

Journal: :Journal of the American Chemical Society 2006
Vincent S Chan Ian C Stewart Robert G Bergman F Dean Toste

Ruthenium phosphido complexes have been shown to be excellent nucleophiles, reacting via two-electron processes with a variety of electrophiles. A catalytic alkylation reaction was developed using an achiral ruthenium complex, which was then elaborated into a catalytic enantioselective synthesis of P-stereogenic phosphines. These useful and synthetically challenging phosphines can now be access...

2017
Ivan Kajan Teemu Kärkelä Ari Auvinen Christian Ekberg

Ruthenium is a fission product that can be released from the fuel in case of a severe nuclear accident. In this work the impact of the atmosphere composition, including air radiolysis products, on the transport of ruthenium through a primary circuit was examined. Experiments were performed at temperatures 1300, 1500 and 1700 K in a slightly humid air. In the experiments significant effect of ni...

Journal: :Chemical communications 2010
Charles P Casey Jeffrey B Johnson Xiandong Jiao Sharon E Beetner Steven W Singer

The ruthenium hydride of (Ar(4)CpOH)Ru(CO)(2)H exchanges cleanly and rapidly with D(2) at room temperature to generate the ruthenium deuteride. A chain mechanism is proposed to explain the much more rapid exchange of RuH/D(2) than RuCO exchange with (13)CO.

2014
Flávia de Castro Pereira Aliny Pereira de Lima Cesar Augusto Sam Tiago Vilanova-Costa Wanessa Carvalho Pires Alessandra de Santana Braga Barbosa Ribeiro Lucas Carlos Gomes Pereira Luiz Alfredo Pavanin Wagner Batista dos Santos Elisângela de Paula Silveira-Lacerda

Chemotherapy is a common treatment for leukemia. Ruthenium complexes have shown potential utility in chemotherapy and photodynamic therapy. The identification of new chemotherapeutics agents is critical for further progress in the treatment of leukemia. Ruthenium complexes generally have lower toxicities compared to cisplatin attributed to their specific accumulation in cancer tissues. Based on...

2016
Aleksandar Bijelic Sarah Theiner Bernhard K. Keppler Annette Rompel

Ruthenium(III) complexes are promising candidates for anticancer drugs, especially the clinically studied indazolium trans-[tetrachlorobis(1H-indazole)ruthenate(III)] (KP1019) and its analogue sodium trans-[tetrachlorobis(1H-indazole)ruthenate(III)] (NKP-1339). Several studies have emphasized the likely role of human serum proteins in the transportation and accumulation of ruthenium(III) comple...

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