zinc oxide (zno) nanoparticles were synthesized by spray pyrolysis method using an aqueous solution of zinc acetate at various concentrations from 5 to 25 wt%. the decomposition of precursor solutions was carried out at 800, 1000 and 1200ºc under different atomizing pressures. the crystal structure and morphology of synthesized nanoparticles were characterized by x-ray diffraction (xrd) spectro...

The bottom-up synthesis of ligand-stabilized functional nanoparticles from molecular precursors is widely applied but is difficult to study mechanistically. Here we use 31P NMR spectroscopy to follow the trajectory of phosphinate ligands during the synthesis of a range of ligated zinc oxo clusters, containing 4, 6 and 11 zinc atoms. Using an organometallic route, the clusters interconvert rapid...

Federal workplace drug testing was initiated during the late 1980s. Since then, numerous methods have been employed to subvert these drug tests, adulteration of urine samples being the most common. A wide variety of adulterants has been reported to date along with suitable methods of their detection. Recently, websites have claimed that zinc sulfate can be an effective adulterant to bypass drug...

background: ferrous sulfate is the most used supplement for treating anemia, but it can result in unfavorable side effects. nowadays, nanotechnology is used as a way to increase bioavailability and decrease the side effects of drugs and nutrients. this study investigates the effects of nanoparticles containing iron on blood and inflammatory markers in comparison to ferrous sulfate in anemic rat...

In this study, Zinc Oxide nanoparticles (ZnONPs) were synthesized by chemical method and their antibacterial efficiency against a clinical isolate of Staphylococcus aureus was studied. The Zinc Oxide nanoparticles have shown a commendable inhibition effect on the growth of most notorious bacterial pathogen S.aureus. The nanoparticles size and shapes were characterized by trans...

0925-3467/$ see front matter 2010 Elsevier B.V. A doi:10.1016/j.optmat.2010.09.020 ⇑ Corresponding author. Tel.: +1 518 276 2164; fax E-mail address: [email protected] (S. Sawyer). Zinc oxide nanoparticles were created by a top-down wet-chemical etching process and then coated with polyvinyl-alcohol (PVA), exhibiting sizes ranging from 10 to 120 nm with an average size approximately 80 nm. T...

Background: Zinc is essential for nucleic acid metabolism, protein synthesis and tissue healing. Zinc deficiency has detrimental effects on child health and increases mortality rate of pneumonia and gastroenteritis. By improving absorptive function of villous cells and by reducing pathogenic enterobacteriaceae in lumen, Zinc improves diarrhea outcome in children. Previous studies in developing ...