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Recent publications

Jun 14 2019

Chem. Comm. [BCB] / [POMAM]

Abstract: Copper(II) forms well-known and stable complexes with peptides having histidine at position 2 (Xxx-His) or 3 (Xxx-Zzz-His). Their properties differ considerably due to the histidine positioning. Here we report that in the hybrid motif Xxx-His-His, the Cu(II)-complexes can be switched between the Xxx-His and the Xxx-Zzz-His coordination modes by addition of external...[more]

Jun 14 2019

Inorg. Chem. [BCB] / [POMAM]

Abstract : It was shown that His3 of human copper transporter 1 (hCtr1) prompts the ATCUN-like Cu(II) coordination for model peptides of the hCtr1 N-terminus. Its high Cu(II) affinity is a potential driving force for the transfer of Cu(II) from extracellular Cu(II) carriers to hCtr1. Having a sequence similar to that of hCtr1, hCtr2 has been proposed as another human copper transporter. However,...[more]

Jun 14 2019

techniques de l'ingénieur [POMAM]

Résumé : Les propriétés magnétiques des matériaux sont exploitées dans de nombreuses applications : des plus classiques, composants électromécaniques, enregistrement magnétique, aux plus élaborées et futuristes, comme la réfrigération magnétique ou l'électronique de spin. Cet article introduit a notion de Liquide Ionique (LI) avec son extension aux composés incorporant des ions magnétiques...[more]

Jun 14 2019

Inorg. Chem. [POMAM]

Abstract : Two trinuclear CuII pyrazolato complexes with a Cu3(μ3-E)-core (E = O2– or OH–) and terminal nitrite ligands in two coordination modes were characterized crystallographically, spectroscopically, and electrochemically. One-electron oxidation of the μ3-O species produces a delocalized, mixed-valent, formally CuII2CuIII-nitrite, but no nitrate. In contrast, under reducing...[more]

May 29 2019

Organic & Biomolecular Chemistry [SOPhy]

Abstract : An operationally simple synthesis of activated ynesulfonamides and enesulfonamides is described.  Ynesulfonamides can be obtained through reaction of sulfonylamides with activated bromoalkynes and Triton B in a short time at room temperature. Likewise, terminal alkynes react with sulfonylamides to provide enesulfonamides. Z/E enesulfonamides can be transformed exclusively into E...[more]

May 2 2019

Metallomics [BCB, POMAM]

Summary: Thiosemicarbazones (TSCs) are a class of strong metal ion ligands, which are currently being investigated for several applications, such as anticancer treatment. In addition to these ligands only, which exert their activity upon interaction with metal ions in cells, preformed metal–TSC complexes are also widely studied, predominantly with the essential metal ions iron, copper and zinc....[more]

Apr 10 2019

Microchemical Journal [Biogéochimie Moléculaire]

Abstract : Plant exudates have been extensively used in the past for different applications related to their olfactory, physical or medical properties. Their identification in archaeological samples relies, notably, on the characterisation of chemotaxonomic molecular markers but is often hampered by the severe alteration of their typical genuine molecular signature due to ageing. Among these...[more]