The group separation of trivalent actinides and lanthanides and the mutual separation of americium and curium are necessary for the transmutation of americium. We have proposed the separation system based on the chromatography using the tertiary pyridine-type resin. In this separation system, the complete separation method of the trivalent actinides and lanthanides are already established using...

Ca2+ transport across the membrane of vesicles derived from Azotobacter vinelandii was studied in the absence of respiration or functioning ATPase. Two facilitated diffusion systems were found. One, an electroneutral Ca2+/2H+ antiporter, responded to an artificially imposed deltapH, was heat-labile, and was insensitive to low concentrations of ruthenium red and lanthanides. The second, an elect...

Lanthanum (La) and the lanthanides (Ln) are the elements, numbered 57-71 of the periodic table. La and Ln occur more frequently than their name implies.

UNLABELLED Many methylotrophic taxa harbor two distinct methanol dehydrogenase (MDH) systems for oxidizing methanol to formaldehyde: the well-studied calcium-dependent MxaFI type and the more recently discovered lanthanide-containing XoxF type. MxaFI has traditionally been accepted as the major functional MDH in bacteria that contain both enzymes. However, in this study, we present evidence tha...

In this paper we demonstrate that the effect of aromatic C--F substitution in ligands does not always abide by conventional wisdom for ligand design to enhance sensitisation for visible lanthanide emission, in contrast with NIR emission for which the same effect coupled with shell formation leads to unprecedented long luminescence lifetimes. We have chosen an imidodiphosphinate ligand, N-{P,P-d...

Abstract The chemical separation of zirconium from lanthanides by liquid–liquid extraction is challenging but critical for medical and technological applications. Using the example 89 Zr, we optimize liquid–liquid-extraction process means radiotracer technique. We produced Zr proton irradiation a metallic yttrium target at cyclotron. purification radionuclide was performed UTEVA resin. separate...

The application of quantum chemistry to systems containing atoms of the lanthanide (57La 71Lu) and/or actinide (90Th 103Lr) series is a considerable challenge and has been attempted only by a comparatively small number of researchers. Several complications, some of which will be described in the following, prevent standard quantum chemical approaches from being successful in this field in all r...