Lelong Evan

Institut de Chimie Séparative de Marcoule | ICSM · Laboratoire Tri ionique par les Systèmes Moléculaires auto-assemblés

The removal of heavy toxic metals from industrial effluents is extremely important, especially for mercury (Hg), which is classified as a highly toxic even at low concentrations. For this purpose, novel thiourea chelating resins were synthesized as sorbent for Hg (II). Six different polymers of formo‐phenolic types were characterized and evaluated...

This paper is available for free during one month from now https://authors.elsevier.com/c/1hsUa,6wyBJxps

Invited for this month′s cover is the collaborating group of Dr Guilhem Arrachart and Dr Stéphane Pellet‐Rostaing at Institut de Chimie Séparative de Marcoule (ICSM). The cover picture shows a person going uranium fishing thanks to the use of bis‐catecholamide materials. These materials have shown interesting performance for the recovery of uranium...

The cover picture shows a person ‘fishing’ for uranium. Uranium extraction from unconventional resources like in seawaters constitutes an important secondary source of uranium as well as a challenge considering the complexity of this media. Chelating resins containing catecholamide moieties with phenolic admixtures have been developed and exhibit g...

This work reports the synthesis of formo‐phenolic resins containing four catecholamide (CAM) moieties with admixture of phenol, catechol or resorcinol. These chelating resins have been developed to selectively extract U(VI) from seawater. This media is a challenging environment due to a pH around 8.2 and a large excess of alkaline and earth‐alkalin...

We present here a novel strategy based on the covalent grafting of a C -functionalized Ni-cyclam complex onto glassy carbon to achieve heterogeneous electrocatalytic CO 2 reduction in neutral water at low...

We report a series of four cyclams and cross-bridged cyclams, N-functionalized by one hydroxyethyl arm, which may incorporate additional methyl(s) group(s). The Cu(II) and Zn(II) complexes of these ligands were synthesized and fully characterized. The investigation of the metal complexes in solid-state and in solution was carried via X-ray diffract...

Herein, we report a comprehensive coordination study of the previously reported ligands cyclam , CB-cyclam TMC , DMC , CB-DMC , and of their C -functional analogues, cyclam-E , CB-cyclam-E , TMC-E , DMC-E and CB-DMC-E . This group of ligands includes cyclam , cross-bridged cyclams , their di- or tetramethylated derivatives and the analogues bearing...

Amyloid-β (Aβ) aggregation and metal ion dyshomeostasis are found to be pathological features upon the progress of Alzheimer's disease (AD). In addition, Aβ and metal ions are reported to interact with each other forming metal–Aβ complexes, which can affect the aggregation of Aβ and cause oxidative stress via the production of reactive oxygen speci...