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Paul Joseph Dyson

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Publications associées (669)

In vivo anti-tumor activity of the organometallic ruthenium(II)-arene complex [Ru(eta(6)-p-cymene)-Cl-2(pta)] (RAPTA-C) in human ovarian and colorectal carcinomas

Paul Joseph Dyson, Maxime Dubois, Patrycja Nowak-Sliwinska

Based on the clinical success of platinum-based anti-cancer drugs such as cisplatin, carboplatin and oxaliplatin, a variety of other metal-based anti-cancer compounds are being investigated. In particular, a number of ruthenium-based compounds have been id ...

2014

Perfluorinated ruthenium(II) complexes with improved anti-angiogenic or anti-cancer activity

Paul Joseph Dyson, Patrycja Nowak-Sliwinska, Catherine Marie Amélie Clavel, Emilia Paunescu

Springer2014

Conformational control of anticancer activity: the application of arene-linked dinuclear ruthenium(II) organometallics

Rosario Scopelliti, Paul Joseph Dyson, Laure Menin, Benjamin Samuel Murray

Dinuclear metal complexes have emerged as a promising class of biologically active compounds which possess unique anticancer activity. Here, we describe a novel series of arene-linked dinuclear organometallic Ru(II) complexes, where the relative conformati ...

2014

Ligand substitutions between ruthenium-cymene compounds can control protein versus DNA targeting and anticancer activity

Paul Joseph Dyson, Ursula Röthlisberger, Wee Han Ang, Pablo Campomanes Ramos, Alexey Nazarov, Michael Groessl, Catherine Marie Amélie Clavel

Ruthenium compounds have become promising alternatives to platinum drugs by displaying specific activities against different cancers and favourable toxicity and clearance properties. Nonetheless, their molecular targeting and mechanism of action are poorly ...

Nature Research2014

Evaluation of the in vitro anticancer activity of cyclometalated half-sandwich rhodium and iridium complexes coordinated to naphthaldimine-based poly(propyleneimine) dendritic scaffolds

Paul Joseph Dyson, Catherine Marie Amélie Clavel, Fabio Edafe

The development of cyclometalated rhodium and iridium complexes from first-and second-generation naphthaldimine-based poly(propyleneimine) dendrimer scaffolds of the type, DAB-(NH2)(n) (where n = 4 or 8, DAB = diaminobutane) has been accomplished. Four met ...

Elsevier Science Sa2014

Highly water soluble trithiolato-bridged dinuclear arene ruthenium complexes

Paul Joseph Dyson, Patrycja Nowak-Sliwinska, Noelia Claude Herrero

Water soluble arene-functionalised trithiolato-bridged ruthenium complexes of general formula (eta(6)-C6H5OCH2CH2OH)(2)Ru-2(mu-SR)(3), where R = C6H5 (1), C6H4-p-OMe (2), C6H4-p-OMe (3), C6H4-p-Pr-i (4), C6H4-p-Bu-t (5), CH2C6H5 (6), CH2CH2C6H5 (7) an ...

Elsevier Science Sa2014

Electrostatic and Non-covalent Interactions in Dicationic Imidazolium-Sulfonium Salts with Mixed Anions

Gabor Laurenczy, Rosario Scopelliti, Paul Joseph Dyson, Zhaofu Fei, Ning Yan

A series of thioether-functionalised imidazolium salts have been prepared and characterized. Subsequent reaction of the thioether-functionalised imidazolium salts with iodomethane affords imidazolium-sulfonium salts composed of doubly charged cations and t ...

Wiley-V C H Verlag Gmbh2014

Synthesis and evaluation of new polynuclear organometallic Ru(II), Rh(III) and Ir(III) pyridyl ester complexes as in vitro antiparasitic and antitumor agents

Paul Joseph Dyson, Tina Riedel

New polynuclear organometallic Platinum Group Metal (PGM) complexes containing di- and tripyridyl ester ligands have been synthesised and characterised using analytical and spectroscopic techniques including H-1, C-13 NMR and infrared spectroscopy. Reactio ...

2014

Arene ruthenium and pentamethylcyclopentadienyl rhodium and iridium complexes containing N,O-chelating ligands derived from piroxicam: Synthesis, molecular structure and cytotoxicity

Paul Joseph Dyson, Tina Riedel

The non-steroidal anti-inflammatory and anti-arthritic drug piroxicam (LH) reacts with arene ruthenium dichloride dimers in refluxing dichloromethane to give the complexes [(eta(6)-arene)Ru(eta(2)-N,O-L)Cl] (3: arene = C6H5Me, 4: arene = p-MeC6H4Pri, 5: ar ...

Elsevier2014

Highly Stable Dye-Sensitized Solar Cells Based on Novel 1,2,3-Triazolium Ionic Liquids

Michael Graetzel, Shaik Mohammed Zakeeruddin, Paul Joseph Dyson, Hoi Nok Tsao, Pui Shan Genevieve Lau

We describe the design and synthesis of novel low viscosity bicyclic 1,2,3-triazolium ionic liquids. These new salts are applied as nonvolatile electrolytes in dye-sensitized solar cells, affording efficiencies up to 7.07% at low light intensities, and 6.0 ...

Amer Chemical Soc2014

Thermoresponsive organometallic arene ruthenium complexes for tumour targeting

Paul Joseph Dyson, Patrycja Nowak-Sliwinska, Catherine Marie Amélie Clavel, Emilia Paunescu

Application of mild hyperthermia can increase the cytotoxicity of anticancer drugs in tumour cells. In this report, we describe low molecular weight thermoactive ruthenium-based drugs with fluorous chains that are selectively triggered by mild hyperthermia ...

2014

Phosphorylation of Diaminopyridines: Synthesis of a Compound Containing Both a Diphosphinoamine ( P-N-P) and an Iminobiphosphine ( N=P-P) Fragment

Rosario Scopelliti, Paul Joseph Dyson, Zhaofu Fei, Wee Han Ang, Emilia Paunescu

The phosphorylation of a series of diaminopyridines (2,3-, 3,4-, 2,5- and 2,6-diaminopyridine), with various molecular equivalents of chlorodiphenylphosphine in the presence of TEA has been studied. Notably, phosphorylation of 2,3- and 3,4-diaminopyridine ...

Wiley-V C H Verlag Gmbh2014

Metal-Free Catalyst for the Chemoselective Methylation of Amines Using Carbon Dioxide as a Carbon Source

Gabor Laurenczy, Paul Joseph Dyson, Felix Daniel Bobbink, Shoubhik Das

N-methylation of amines is an important step in the synthesis of many pharmaceuticals and has been widely applied in the preparation of other key intermediates and chemicals. Therefore, the development of efficient methylation methods has attracted conside ...

Wiley-VCH Verlag GmbH2014

Ultrathin rhodium nanosheets

Paul Joseph Dyson, Ning Yan, Yuehui Li, Jun Li

Despite significant advances in the fabrication and applications of graphene-like materials, it remains a challenge to prepare single-layered metallic materials, which have great potential applications in physics, chemistry and material science. Here we re ...

Nature Publishing Group2014

Antiproliferative activities of trithiolato-bridged dinuclear arene osmium complexes

Paul Joseph Dyson, Benjamin Samuel Murray

Trithiolato-bridged arene osmium complexes of the general formula (p-cymene)(2)Os-2(mu-SR)(3) (R = C6H5, 1; C6H4-p-Me, 2; C6H4-p-OMe, 3; C6H4-p-Pr-i, 4; C6H4-p-But, 5; CH2C6H5, 6; CH2CH2C6H5, 7; CH2C6H4-p-Bu-t, [8](+ ...

Elsevier Science Sa2014

Opening the lid on piano-stool complexes: An account of ruthenium(II)-arene complexes with medicinal applications

Paul Joseph Dyson, Christian Hartinger, Alexey Nazarov

Interest in the medicinal properties of ruthenium(II)-arene compounds has grown rapidly over the last decade. In this account we describe the origins of the field and subsequently highlight developments in the field, including the design of compounds that ...

Elsevier Science Sa2014

A feedback loop optimized vascular targeted drug combination for the treatment of cancer

Hubert van den Bergh, Paul Joseph Dyson, Patrycja Nowak-Sliwinska

Springer2014

Selenoquinones Stabilized by Ruthenium( II) Arene Complexes: Synthesis, Structure, and Cytotoxicity

Paul Joseph Dyson, Catherine Marie Amélie Clavel

A new series of monoselenoquinone and diselenoquinone complexes, [((6)-p-cymene)Ru((4)-C6R4SeE)] (R=H, E=Se (6); R=CH3, E=Se (7); R=H, E=O (8)), as well as selenolate complexes [((6)-p-cymene)Ru((5)-C6H3R2Se)][SbF6] (R=H (9); R=CH3 (10)), stabilized by are ...

Wiley-V C H Verlag Gmbh2014

Ruthenium(II) and osmium(II) 1,2,3-triazolylidene organometallics: a preliminary investigation into the biological activity of 'click' carbene complexes

Paul Joseph Dyson, Stéphanie Crot, Kelly Joan Kilpin, Tina Riedel

Taking advantage of the facile and versatile synthetic properties of 'click' 1,2,3-triazolylidene N-heterocyclic carbenes (tzNHC's), a range of new organometallic Ru(II) and Os(II) arene complexes containing functionalised tzNHC ligands, [M(eta(6)-p-cymene ...

2014

Discovery of a Highly Tumor-Selective Organometallic Ruthenium(II)-Arene Complex

Rosario Scopelliti, Paul Joseph Dyson, Patrycja Nowak-Sliwinska, Catherine Marie Amélie Clavel, Emilia Paunescu

A ruthenium(II)-arene complex with a perfluoroalkyl-ligand was found to display remarkable selectivity toward cancer cells. IC50 values on several cancer cell lines are in the range of 25-45 mu M, and no cytotoxic effect was observed on nontumorigenic (HEK ...

Amer Chemical Soc2014

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