In this research, a new technetium-99m generator has been developed with addition of Cerium oxide to alumina column.  The adsorption behaviors of 99Mo in the form of molybdate and 99mTc in the form of pertechnetate on CeO2/Al2O3 was investigated and showed that the adsorption capacity of molybdate on this generator is higher than usual generator using Al2O3. Ceric ions were selected as an addit...

Recently, much research has investigated nanocomposites and their properties for the development of energy storage systems. Supercapacitor performance is usually enhanced by use porous electrode structures, which produce a larger surface area reaction. In this work, biocompatible polymer starch medium was used to create nanostructure. Two powders, i.e., Nickel molybdate/reduced graphene oxide (...

The molybdenum cofactor (Moco) is synthesized by an ancient and conserved biosynthetic pathway. In plants, the two-domain protein Cnx1 catalyzes the insertion of molybdenum into molybdopterin (MPT), a metal-free phosphorylated pyranopterin carrying an ene-dithiolate. Recently, we identified a novel biosynthetic intermediate, adenylated molybdopterin (MPT-AMP), which is synthesized by the C-term...

The simultaneous spectrophotometric determination of phosphate and silicate ions in river water was examined by using ion-exclusion chromatography and post-column derivatization. Phosphate and silicate ions were separated by the ion-exclusion column packed with a polymethacrylate-based weakly acidic cation-exchange resin in the H(+)-form (TSKgel Super IC-A/C) by using ultra pure water as an elu...

In previous work, we reported the growth of well-structured single-walled carbon nanotubes (SWNT) by CO disproportionation on Co:Mo/SiO2 catalysts. We have proposed that high SWNT selectivity can only be obtained when most of the Co in the sample is interacting with Mo and forming a cobalt–molybdate surface layer. In this contribution, we report further evidence to the hypothesis by an investig...

The increased rate of hydrolysis of organic phosphate compounds in the presence of molybdate has been observed frequently and is the basis for the estimation of phosphocreatine (1) and acetyl phosphate (2) in tissue extracts. A study was undertaken to determine whether this was a general effect and, if so, to elucidate the mechanism. While these experiments were in progress, Weil-Malherbe and G...

Forty crossbred wether lambs, 44 kg initial body weight, were used to study relative bioavailability of Mo in supplemental Mo sources and their effects on body Cu storage. The basal maize-soya-bean meal-cottonseed hulls diet contained 11.5 mg kgÿ1 Cu, 1.1 mg kgÿ1 Mo and 2.1 g kgÿ1 S (DM basis) and was supplemented with 0, 15, 30, or 45 mg kgÿ1 (as-fed basis) added Mo as reagent grade sodium mol...

Using L cell glucocorticoid receptors that have been immunopurified by adsorption to protein A Sepharose with a monoclonal antireceptor antibody, we have developed an assay to study the requirements for maintenance of steroid-binding capacity. After rapid purification by immunoadsorption, heteromeric receptor complexes retain the ability to bind glucocorticoid hormone. When the receptor complex...

Expression of the Escherichia coli napFDAGHBC operon (also known as aeg46.5), which encodes the periplasmic molybdoenzyme for nitrate reduction, is increased in response to anaerobiosis and further stimulated by the addition of nitrate or to a lesser extent by nitrite to the cell culture medium. These changes are mediated by the transcription factors Fnr and NarP, respectively. Utilizing a napF...

Molybdenum is very toxic to agricultural animals. Mo-reducing bacterium can be used to immobilize soluble molybdenum to insoluble forms, reducing its toxicity in the process. In this work the isolation of a novel molybdate-reducing Gram positive bacterium tentatively identified as Bacillus sp. strain A.rzi from a metal-contaminated soil is reported. The cellular reduction of molybdate to molybd...