The interaction of two lanthanides Cerium (Ce3+) and Gadolinium (Gd3+) and two heavy metal ions Manganese (Mn2+) and Zinc (Zn2+) with various biological proteins Bovine Serum Albumin, Human Serum Albumin, β-lactoglobulin, Myoglobin and Ovalbumin were studied by using mobility shift affinity capillary electrophoresis. The used ACE method offers fast operation using shorter capillary, small injec...

The scintillation yield and decay time of LaBr3 doped with 0.2%, 0.5%, and 5% cerium were studied between 80 K and 600 K. LaBr3 :5%Ce 3+ on a photomultiplier tube shows at 300 K a very high scintillation yield of 22 800 photoelectrons per MeV 64 000 photons per MeV with a decay time of 16 ns. At 600 K the yield decreases by 15%. The scintillation yield of LaBr3 :0.2%Ce3+ is 19 800 photoelectron...

Abstract A novel hybrid sol–gel coating has recently been introduced as an alternative to high toxic chromate-based corrosion protection systems. In this paper, we propose a multiscale computational model to estimate the amount and time scale of inhibitor release of the active corrosion protection coating. Moreover, we study the release rate under the influence of parameters such as porosity an...

Despite the increasing use of rare earth elements (REEs) and oxides (REOs) in various technologies, the information on their ecotoxicological hazard is scarce. Here, the effects of La3+, Ce3+, Pr3+, Nd3+, Gd3+, CeO₂, and eight doped REOs to marine bacteria Vibrio fischeri and freshwater protozoa Tetrahymena thermophila were studied in parallel with REO dopant metals (Co2+, Fe3+, Mn2+, Ni2+, Sr2...

In this work, we report a rapid stability phenomenon of ferroelectric polarization in the Ca, Ce hybrid doped BaTiO3 ceramics (BCaxT+BTCe8) (x = 10, 20, 24, 30 mol%) prepared by separate doping Ca2+ and Ce4+ ions. Double hysteresis loops are identified in the aged BCaxT+BTCe8 samples; meanwhile, the polarization of these loops present a rapid decrease within very short aging time (about 1 h), a...

Analytical scanning and transmission electron microscopy were used to study the microstructure of Ce,Er-doped Na0.5La0.5MoO4 laser crystals. Crystals grown by Czochralski method from melts with a nominal composition Na0.5La0.5−xCexEr0.005MoO4, where x = 0.125 0.15, then annealed at 700 1000 °C in oxidizing atmosphere. We found secondary phase precipitation Ce2O3 oxide as-grown crystals, while a...