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Chimie minérale

Publications associées (23)

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On the cause of the tailing phenomenon during virus disinfection by chlorine dioxide

Tamar Kohn, Qingxia Zhong, Anne Thérèse Sigstam, Moritz Brennecke, Andreas Rohatschek

This study investigates the mechanisms underlying the deviation from Chick-Watson kinetics, namely a tailing curve, during the disinfection of viruses by chlorine dioxide (ClO2). Tailing has been previously reported, but is typically attributed to the deca ...

Elsevier2014

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

Paul Joseph Dyson, Rosario Scopelliti, 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

Catalytic Enantioselective Michael Addition of α-Aryl-α-Isocyanoacetates to Vinyl Selenone: Synthesis of α,α-Disubstituted α-Amino Acids and (+)- and (−)-Trigonoliimine A

Qian Wang, Jieping Zhu, Thomas Bertrand Pascal Marie Buyck

Be like Mike: The title reaction in the presence of the catalyst 1 afforded Michael adducts in excellent yields and enantioselectivities. The adducts were readily converted into alpha,alpha’-disubstituted alpha-amino acids. The enantioselective total synth ...

Wiley-Blackwell2013

Adducts of Nitrous Oxide and N-Heterocyclic Carbenes: Syntheses, Structures, and Reactivity

Rosario Scopelliti, Kay Severin, Euro Solari, Basile Vuichoud, Alexander Tskhovrebov

N-Heterocyclic carbenes (NHCs) react at ambient conditions with nitrous oxide to give covalent adducts. In the crystal, all compounds show a bent N2O group connected via the N-atom to the former carbene carbon atom. Most adducts are stable at room temperat ...

Amer Chemical Soc2013

Arginine-Specific Modification of Proteins with Polyethylene Glycol

Harm-Anton Klok, Marc Gauthier

In this study, the residue-selective modification of proteins with polymers at arginine residues is reported. The difficulty in modifying arginine residues lies in the fact that they are less reactive than lysine residues. Consequently, typical chemo-selec ...

American Chemical Society2011

X-ray absorption spectroscopy studies of the adducts formed between cytotoxic gold compounds and two major serum proteins

Angela Casini

Gold metallodrugs form a class of promising antiproliferative agents showing a high propensity to react with proteins. We exploit here X-ray absorption spectroscopy (XAS) methods [both X-ray absorption near-edge spectroscopy (XANES) and extended X-ray abso ...

Springer Verlag2011

Proteins as Possible Targets for Cytotoxic trans-Platinum(II) Complexes with Aliphatic Amine Ligands: Further Exceptions to the DNA Paradigm

Paul Joseph Dyson, Angela Casini, Michael Groessl

The reactivity of three cytotoxic trans-PtII complexes bearing aliph. amine ligands, with transferrin and single-stranded oligonucleotides as DNA models, was investigated by ESI-MS and the results obtained are discussed in comparison with cisplatin. Tandem ...

Wiley-Blackwell2010

Ruthenium versus platinum: interactions of anticancer metallodrugs with duplex oligonucleotides characterised by electrospray ionisation mass spectrometry

Paul Joseph Dyson, Yury Tsybin, Christian Hartinger, Michael Groessl

The binding of the ruthenium-based anticancer drug candidates KP1019, NAMI-A and RAPTA-T towards different double-stranded oligonucleotides was probed by electrospray ionisation mass spectrometry and compared with that of the widely used platinum-based che ...

Springer-Verlag2010

Salts of electrophilic cations and Lewis acid-base adducts with weakly coordinating anions : synthesis, characterization and quantum chemical calculations

Ines Raabe

During the last decades, weakly coordinating anions (WCAs) have become a field of great interest both in basic and applied chemistry, as – if compared to "normal" classical anions like Cl- or SO42- – they have a lot of unique and unusual properties, such a ...

EPFL2007

ESI-MS characterisation of protein adducts of anticancer ruthenium(II)-arene PTA (RAPTA) complexes

Paul Joseph Dyson, Angela Casini, Wee Han Ang

Electrospray ionization mass spectrometry allows a rapid characterization of the adducts formed between three novel anticancer ruthenium(II)-arene PTA compds. and horse heart cytochrome c or hen egg white lysozyme. Specific information on the nature of the ...

2007

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