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Dissolution of Fe(III) (hydr)oxide minerals by siderophores (i.e., Fe-specific, biogenic ligands) is an important step in Fe acquisition in environments where Fe availability is low. The observed coexudation of reductants and ligands has raised the questio ...
Due to their high chemical affinity towards metal ions, chelating agents (CAs) have been used for decades for water purification, but also for protection against metal intoxication and in nanomedicine as linking molecules at the surface of nanoparticles. H ...
Herein we report a detailed H-1 and O-17 relaxometric investigation of Mn(II) complexes with cyclenbased ligands such as 2-(1,4,7,10-tetraazacyclododecan-1-yl)acetic acid (DO IA), 2,2 '-(1,4,7,10-tetraazacyclododecane-1,4-diyI)diacetic acid (1,4-DO2A), 2,2 ...
The present study aims to improve the understanding of the role of complexation and competition effects on Cd and Pb accumulation by the metal resistant bacterium Cupriavidus metallidurans largely used in bioremediation. Adsorbed and intracellular metal co ...
We report a study on the interaction of the extracellular domain of trans-membrane proteins N-cadherin and Ll with nitrilotriacetic acid (NTA)-terminated self-assembled monolayers (SAMs) grown on silver and gold surfaces. Quartz crystal microbalance (QCM) ...
A tripodal ligand based on the 8-hydroxyquinolinate binding unit yields a soluble and highly stable bis-hydrated Gd3+ complex in water (pGd = 19.2(3)) with relaxivity change in the pH range 4.5-7.4 and Nd3+, Yb3+ analogues with sizeable NIR emission upon e ...
A series of six tetradentate polypyridine-type ligands (L) have been used to prepare the corresponding Eu(III) complexes [Eu(L)2(S)]nþ (n = 2, 3) where S = H2O or CF3SO3 -. Two of the ligands, 2,9-di(pyrid-20-yl)-1,10- phenanthroline (4) and its dipyridoph ...
The tetradentate chelate ligand tris[(1-vinylimidazol-2-yl)methyl]amine (10) was synthesized in five steps from commercially available starting materials. Upon reaction with MCl2 (M = Zn, Cu, Ni, Co) in the presence of NH4PF6, the complexes [M(10)Cl]PF6 (M ...
The ligand N,N'-bis[6-carboxy-2-pyridylmethyl]ethylenediamine-N,N'-diacetic acid (H4bpeda) was synthesized using an improved procedure which requires a reduced no. of steps and leads to a higher yield with respect to the published procedure. It was obtaine ...
To study the influence of hydrazine functions in the ligand skeleton, we designed the heptadentate HYD ligand (2,2',2 '',2 ''-(2,2'-(pyridine-2,6-diyl)bis(2-methylhydrazine-2,1,1-triyl)) tetraacetic acid) and compared the thermodynamic, kinetic, and relaxa ...
