Concept

Porphyrine

Publications associées (71)

Preparation of porphyrin and phthalocyanine organometallic compounds for the treatment of cancer

The present invention relates to novel organometallic compds. for use as a medicine, in particular in photodynamic therapy against various diseases, such as cancer. The compds. comprise a central porphyrin or phthalocyanine backbone to which ligand linkers ...

2008

Sublimation Not an Innocent Technique: A Case of Bis-Cyclometalated Iridium Emitter for OLED

Michael Graetzel, Mohammad Khaja Nazeeruddin, Rosario Scopelliti, Libero Zuppiroli, Philippe Bugnon, Stéphane Suarez

Isomerization of a neutral bis-cyclometalated iridium(III) complex has been observed for the first time during the preparation of vacuum-processed organic light-emitting devices (OLEDs) and reproduced in solution. Isolation of the isomer revealed a cis org ...

2008

Tetrachelate Porphyrin Chromophores for Metal Oxide Semiconductor Sensitization: Effect of the Spacer Length and Anchoring Group Position

Ulf Anders Hagfeldt

Four Zn(II)-tetra(carboxyphenyl)porphyrins in soln. and bound to metal oxide (TiO2, ZnO, and ZrO2) nanoparticle films were studied to det. the effect of the spacer length and anchoring group position (para or meta) on their binding geometry and photoelectr ...

2007

Simulation of heme using DFT+U: A step toward accurate spin-state energetics

Nicola Marzari, Matteo Cococcioni

We investigate the DFT + U approach as a viable solution to describe the low-lying states of ligated and unligated iron heme complexes. Besides their central role in organometallic chemistry, these compounds represent a paradigmatic case where LDA, GGA, an ...

2007

2-Dimensional Porphyrin Self-Assemblies at Molecular Interfaces

Hubert Girault, Bin Su, Nicolas Eugster

The heterodimer formed by electrostatic association of zinc(II) meso-tetrakis(N-methylpyridyl)porphyrin (ZnTMPyP) and zinc(II) meso-tetrakis(p-sulfonatophenyl)porphyrin (ZnTPPS) exhibits a strong affinity for the interface between water and 1,2-dichloroeth ...

American Chemical Society2006

Preclinical comparison of mTHPC and verteporfin for intracavitary photodynamic therapy of malignant pleural mesothelioma

Georges Wagnières

Efficacy and tumour selectivity of photodynamic therapy with two clinically approved sensitizers (mTHPC, verteporfin) were assessed for focal intracavitary photodynamic therapy (PDT) in rodents with malignant pleural mesothelioma (MPM) at recommended drug- ...

Karger2006

Site-isolated porphyrin catalysts in imprinted polymers

Kay Severin, Corinne Daguenet, Estelle Burri

A meso-tetraaryl ruthenium porphyrin complex having four polymerizable vinylbenzoxy groups (2) has been synthesized by reaction of pyrrole with 4-(vinylbenzoxy)benzaldehyde and subsequent metalation with [Ru-3(CO)(12)]. The porphyrin complex was immobilize ...

2005

Is the aromatic fragment of piano-stool ruthenium compounds an essential feature for anticancer activity? The development of new Ru-II-[9]aneS(3) analogues

Paul Joseph Dyson, Claudine Scolaro

New half-sandwich R-II-[9]aneS(3) complexes ([9]aneS(3) = 1,4,7-trithiacyclononane), namely [RuCl2(PTA)([9]aneS(3))] (4), [RuCl(PTA)(2)([9]aneS(3))][OTf] (5), [RuCl(en)([9]aneS(3))][OTf] (6), [RuCl(enac)([9]aneS(3))][OTf] (7), [RuCl(bipy)([9]ane-S-3)][OTf] ...

2005

Ultrafast structural dynamics in electronically excited many-body systems

Luigi Bonacina

This thesis reports on results of three different experiments of photo-induced structural dynamics in the condensed phase, investigated by time-resolved pump-probe spectroscopy with femtosecond time-resolution. In the first part, we address the ultrafast d ...

EPFL2004

Dynamic photoelectrochemistry at porphyrin-sensitised liquid/liquid interfaces

Nicolas Eugster

The interface between two immiscible electrolyte solutions provides a well-defined framework for fundamental studies of heterogeneous charge transfer processes. Recent developments in experimental methodology have allowed addressing the kinetics of electro ...

EPFL2004

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