Synthesis of Dimethyl Selenone and Studies on the BiomethylationIntermediates of Selenium Reduction and Methylation

SYNTHESIS AND THERMAL REARRANGEMENT OF OXYGEN HETEROCYCLIC SPIRANS

Thermal rearrangement of spirans (14) and (31) yields the xanthones (16,34) and diphenylrnethane (15, 32), respectively. The structure for xanthone (16), isolated from thermolysis, has been established by reduction to xanthene (20) followed by reoxidation to give xanthone (16). Alternatively, methylation of the diphenylmethane (15) followed by heating with selenium dioxide also yields xant...

Page numbering has changed in this Adobe Acrobat Document TOXICITY COMPARISON OF SELENIUM OXYANIONS WITH A PROPOSED BIOMETHYLATION INTERMEDIATE DIMETHYL SELENONE IN A MINIMAL MEDIUM ACCOMPANIED BY SELENIUM DISTRIBUTION ANALYSIS

Pro-angiogenesis action of arsenic and its reversal by selenium-derived compounds.

Inorganic arsenic (arsenite and arsenate) in drinking water has been associated with skin cancers and increased incidence of cardiovascular diseases. Additionally, studies have demonstrated the pro-angiogenic effect of arsenite and its potential promotion of tumor angiogenesis and tumor progression. Furthermore, recent reports demonstrated reversal of skin co-carcinogenesis by an organoselenium...

Green synthesis of Se nanoparticles and its effect on salt tolerance of barley plants

In this study, selenite ions were reduced to selenium nanoparticles using a leaf extract of barley (Hordeum vulgare L.) plants. Characterization of synthesized nanoparticles using Scanning Electron Microscopy (SEM) and UV-visible spectrophotometry indicated the formation of variable size of selenium nanoparticles, suggesting that leaf extract could form polydispersed nanoparti...

Isolation and characterization of a fungus for extracellular synthesis of small selenium nanoparticles

The use of biogenic selenium nanoparticles for various purposes is going to be an issue of considerable importance; thus, appropriate simple methods should be developed and tested for the synthesis and recovery of these nanoparticles. In this study, a fungus was isolated from a soil sample, identified as Aspergillus terreus and used for extracellular synthesis of selenium nanoparticles (Se NPs)...