Bismuth is a heavy metal and was regarded until recently to be the heaviest stable element. It was discovered around ten years ago that the only natural isotope of bismuth, 209Bi, is an alpha emitter with a halflife of 1.9 x 1019 years [1]. Due to the low stability in aqueous solutions of bismuth derivatives with the oxidation number +V, bismuth with the oxidation number +III is regarded as the...

Bismuth is a heavy metal and was regarded until recently to be the heaviest stable element. It was discovered around ten years ago that the only natural isotope of bismuth, 209Bi, is an alpha emitter with a halflife of 1.9 x 1019 years [1]. Due to the low stability in aqueous solutions of bismuth derivatives with the oxidation number +V, bismuth with the oxidation number +III is regarded as the...

Bismuth niobate solid solutions, BixNbOδ (2.5 ≤ x ≤ 6), have been prepared using a mechanochemical method. The solid solutions were also prepared using a solidstate conventional method for comparison purposes. Bi3NbO7 was successfully obtained via a mechanochemical method at a lower synthesis temperature (milled at 1000 rpm for one hour followed by heating at 700C for 24 h) than the conventiona...

Objective: This work is mainly focused to determine the antibacterial activity of green synthesized Bi2O3 nanoparticles against bacterial strains, Staphylococcus aureus and Escherichia coli using resazurin as indicator.
 Methods: Bismuth oxide were from precursor bismuth nitrate [Bi (NO3)3.5H20] by trachyspermum ammi (ajwain) seed extract. To carry out these works, NPs undergone characteri...

A facile method was developed to enhance the visible light photocatalytic activity of bismuth oxide formate (BiOCOOH) nanosheets via Br-doping. The as-prepared samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, the Brunauer-Emmett-Teller surface area, UV-vis diffuse reflectance spectroscopy, photolum...

A captive 33-year-old male white rhinoceros with seasonal dermatitis was diagnosed with a malignant squamous cell carcinoma on the right flank. Staphylococcus aureus was cultured from the skin lesions. No fungal or yeast was isolated. The dermatitis was treated with a combination of oral antibiotics (trimethoprim-sulphadiazine) and topically with weekly chlorhexidine washes and a mixture of a z...

Manganese dioxide cathodes are inexpensive and have high theoretical capacity (based on two electrons) of 617 mAh g-1, making them attractive for low-cost, energy-dense batteries. They are used in non-rechargeable batteries with anodes like zinc. Only ∼10% of the theoretical capacity is currently accessible in rechargeable alkaline systems. Attempts to access the full capacity using additives h...

Cubic fluorite-type phases have been reported in the U(IV)O2-Bi2O3 system for the entire compositional range, but an unusual non-linear variation of the lattice parameter with uranium substitution has been observed. In the current extensive investigation of the uranium(iv) oxide-bismuth(iii) oxide system, this behaviour of the lattice parameter evolution with composition has been confirmed and ...

OBJECTIVE To determine whether ranitidine bismuth citrate, clarithromycin, or a combination of ranitidine bismuth citrate and clarithromycin would be efficacious in eradication of Helicobacter mustelae infection in ferrets. ANIMALS 60 seven-month-old ferrets. PROCEDURE To determine dosages of clarithromycin and ranitidine bismuth citrate that would suppress growth of, but not eradicate infe...

Raman spectroscopy, in which a laser beam serves the dual role of exciting the Raman spectrum and annealing the sample, shows promise as a means of investigating oxygen effects in the oxide superconductors. A technique is described, based on measurements of the ratios of the areas of corresponding peaks in the antiStokes and Stokes spectra, whereby the temperature of the illuminated region of t...