August 2010
Antioxidants: Its medicinal and pharmacological applications
Antioxidants are essential and important for plants and animals’ sustenance. They are substances that protect cells from the damage caused by unstable molecules known as free radicals. The sources and origin of antioxidants which include fruits and vegetables, meats, poultry and fish were treated in this study. The types of antioxidants such as Ascorbic acid, glutathione, melatonin, tocopherols and tocotrienols...
August 2010
Synthesis of polymethyl methacrylate (PMMA) by batch emulsion polymerization
Poly (methyl methacrylate) was synthesized by batch emulsion polymerization with Methyl Methacrylate as the monomer potassium peroxo-disulfate as the initiator, sodium stearate as the emulsifier and distilled water as a medium. The kinetics of free radical polymerization was studied. The kinetics has been modeled, assuming homogeneous nucleation and the resulting equation were solved using Runge-kutta method. Degree of...
August 2010
The inhibitive effect of Solanum melongena L. leaf extract on the corrosion of aluminium in tetraoxosulphate (VI) acid
The effect of Solanum melongena L. leaf extract on the corrosion of aluminium in 0.5 M H2SO4 was investigated by using the gravimetric technique. It was shown that the presence of S. melongena L. leaf extract inhibited the corrosion of aluminium in the test solutions and that the inhibition efficiency depended on the concentration of the plant extract as well as on the time of exposure of the...
August 2010
Remediation of arsenic from water/waste water using engineered carbon (EC)
In the arena of eco-toxicological world, Arsenic pollution is a matter of alarming concern. Intake of arsenic contaminated water having concentration above the permissible limit causes Arsenic poisoning in living beings. In the present study, a batch mode lab. experiment was done using adsorption technology. Here, engineered carbon (EC) was used for remediation of arsenic from water/waste water. A significant amount of...
August 2010
1H and 31P–NMR monitored cross-metathesis reaction of octavinylsilsesquioxane hybrid nanocomposite with ruthenium carbene: Possibility for multifunctional octasilsesquioxane derivatives
Cross metathesis reaction of octavinylsilsesquioxane 1 with Grubb’s carbene 2 in CDCl3 has been monitored by 1H – and 31P – NMR spectroscopy. Reaction in the presence of excess 1 afforded a ruthenium alkylidene resonance attributable to a monofunctional derivative of 1, while in the presence of excess 2, a tetrafunctional derivative resulted as determined by 1H - ,31P – NMR...
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