Antibody levels following yellow fever vaccination (YFV) decrease considerably with time, leaving a substantial proportion of single-dose recipients seronegative after 10 years. Little is known about the persistence of immunity after two or more doses of the vaccine. This study was designed to v...

The textile industry uses large amounts of water in its processes. Such water ends up contaminated by a number of substances, including dyes, creating an environmental challenge. The present study aims at removing dye by applying the precipitation process using a sodium soap (anionic surfactant)...

Lead molybdate single crystals were grown by the Czochralski technique. The growth conditions using resistive heating furnace are described in terms of internal radiant heat transfer through the crystal. Thorough investigations on the dependence of (i) the shape of the crystal-melt interface on ...

An investigation of molybdate melts containing sodium molybdate (Na2MoO4) and molybdenum trioxide (MoO3) to achieve the separation of uranium from fission products by crystallization has been performed. The separation is based on the difference in solubility of the fission product metal oxides c...

Considering the different geochemical enrichment behaviors of W and Mo, Fe–Mn binary oxide (FMBO), ferric hydroxide (Fe(OH)3) and manganese dioxide (MnO2) were studied to separate W from molybdate solution, respectively. The experimental results demonstrated that Fe–Mn binary oxide (FMBO) was ...

A new corrosion inhibitor (NCI) consisting of gluconate along with a relatively low amount of molybdate and nitrite was developed. A synergistic effect between molybdate and gluconate on the corrosion inhibition of C-steel was investigated. The polarization measurement indicates that the corrosi...

The oxidation of methanol to formaldehyde is a major chemical process carried out catalytically and iron molybdate is one of the major catalysts for this process. In this paper we explore the nature of the active and selective surfaces of iron molybdate catalysts and show that the effective cata...

Metal molybdates has paid emerging attention in variety of energy and environmental applications owing to their extra-ordinary physicochemical properties. In this regard, novel rose petal-like yttrium molybdate nanosheets (YMoO4; YM NSs) was successfully designed through a simple wet chemical me...

High resolution electrospray ionization mass spectrometry (ESI-HRMS) was used to study the speciation of molybdate in interaction with halides (Cl, F, Br). Desolvation during electrospray ionization induced alteration of aqueous species but method optimization successfully suppressed artefact co...

Chromium molybdate catalysts with varying Cr/Mo ratios were synthesized by co-precipitation. The catalysts were characterized using XRD, Raman spectroscopy, TPR, BET surface area measurements, ICP-OES and HR-TEM. X-ray diffraction and Raman studies revealed that the dominant phase in the catalys...

The aim of this paper is to study the synthesis of a Zn-Al layered double hydroxide using a waste as an alternative source of zinc, namely the zinc ash resulted from hot dip galvanizing process. The zinc ash was treated with hydrochloric acid to obtain zinc chloride solution, which was subjected...

Charge trapping and energy transfer processes are investigated in PbMoO4 single crystals by electron paramagnetic resonance (EPR) and wavelength-resolved thermally stimulated luminescence (TSL) in a correlated manner. New signals produced by two differently perturbed Mo5+ centers (Mo2 and Mo3) w...

Tricarbonyl[8,9,11,12,13,14-η)methyl podocarpa-8,11,13-trien-19-oate]chromium(0) (7), tricarbonyl[4a,5,6,7,8,8a-η)-1,2,3,4-tetrahydronaphthalene]chromium(0) (11) and (benzene)tricarbonylchromium(0) (10) were prepared and examined. Complex 7 was obtained as a mixture of diastereomers, an X-ray ...

The effect of liver enzymes (S9) on the mutagenic response of nitroimidazoles and nitrofurans in the Ames test was evaluated with strain TA100. A diminished response was observed with a 5-nitroimidazole and 5-nitrofurans when the S9 preparation was incorporated in the agar layer. Preincubation w...

The goal of the presented work is to develop a simple and sensitive high-performance liquid chromatography in combination with fluorescence detection (HPLC-FLD) method for the determination of four nitrofurans (NFs) metabolites compounds (semicarbazide (SEM), 1-aminohydantoin (AH), 3-amino-2-oxa...

Two new chiral ruthenium(II) complexes Δ-[Ru(bpy)2(nfip)]2+ and Λ-[Ru(bpy)2(nfip)]2+ (in which bpy = 2,2′-bipyridine, nfip = 2-(5-nitrofuran-2-yl)-1H-imidazo[4,5-f][1,10]phenanthroline) have been synthesized and characterized by elemental analysis, ES-MS, 1H NMR and CD spectra. The binding pr...

The skin irritating potential of sucrose laurate was studied in the normal guinea pig model. The results showed that sucrose laurate exhibited no skin irritating effect at all. The application of sucrose laurate as an excipient in hydrophilic dermal preparations was investigated, by measuring th...

Hydrogenation of methyl laurate was studied using the binary Ru–Sn and the ternary Ru–Sn–Pt catalysts, both supported on Al2O3. The catalysts were suspended in neat methyl ester, and the reaction was carried out at 300 °C and 9.15 MPa (Gauge pressure) of H2 in an autoclave. The catalysts wer...

The influence of Ge content on the activity and selectivity of Ru–Ge–B/Al2O3 catalysts for the hydrogenation of methyl oleate to oleyl alcohol was studied. The results of catalyst characterization by TPR and XPS show that Ge is deposited on both the metal function aggregates and on the support...

Photon attenuation coefficient calculation methods have been widely used to accurately study the properties of amino acids such as n-acetyl-l-tryptophan, n-acetyl-l-tyrosine, d-tryptophan, n-acetyl-l-glutamic acid, d-phenylalanine, and d-threonine. In this study, mass attenuation coefficients (µ...