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Ethanol extract of the roots of Homonia riparia was tested for its antiurolithiatic activity against calcium oxalate and magnesium ammonium phosphate stones in male albino rats. Calcium oxalate stones were induced by feeding 3% glycolic acid along with normal feed and magnesium ammonium phosphate stones were induced by implantation of zinc discs in the urinary bladder. The ethanol extract of H. riparia (2 g/kg/day, orally) was found to be effective in reducing deposition of calcium in the kidney of both prophylactic and curative group animals. The extract did not show any significant effect on the activity of the liver enzyme glycolic acid oxidase and on the deposition of oxalate in the kidney. The extract was found to be effective in reducing the formation and also in dissolving the pre-formed magnesium ammonium phosphate type of stones.

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The field experiment was conducted to study suitable production technologies to maximise yield of sesame during the year 2004-2005. The experiment was conducted in randomised block design with thirteen treatments and replicated thrice. The treatment comprises of control, recommended dose of NPK, organic matter, application of biofertilizer, micronutrients, clipping at (0+ 2) leaf stage and planofix spraying of 30 ppm at 45 DAS and 55 DAS with different combinations. Among the treatment T 12 (Azospirillum seed treatment, RD of NPK, soil application of MnSO 4 @ 5 kg ha -1 , clipping at 0 + 2 leaf stage and planofix spraying of 30 ppm at 45 DAS and at 55 DAS) has recorded maximum number of capsules per plant (91.12), number of seeds per capsule (69.82), seed yield (1160.75 kg ha -1 ), stover yield (3133.61 kg ha -1 ) and harvest index (27.02%). Hence, application of Azospirillum as seed treatment, recommended dose of NPK, soil application of MnSO 4 @ 5 kg ha -1 , clipping at 0 + 2 leaf stage and planofix spraying of 30 ppm at 45 DAS and at 55 DAS found to be the best production technologies to improve yield.

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Poly(N-cyclohexylacrylamide-co-acrylamide-co-2-acrylamido-2-methylpropane sulphonic acid sodium salt) Zinc oxide (ZnO) nanocomposite hydrogels were synthesized by in situ free-radical copolymerization in aqueous Methanol at 60° C using Ammonium persulphate (APS) as the initiator and N,N'-methylenebisacrylamide (MBA) as a crosslinker . The N-cyclohexylacrylamide (NCA) and acrylamide (AM) monomers were fixed as 50:50 w/w and the amount of sodium salt of the 2-acrylamido-2-methylpropane sulphonic acid (AMPSNa) is varied. Characterization of this polymer matrix using FT-IR, SEM/EDX and XRD indicated the presence of ZnO nanoparticles. The gravimetric method was adopted to study the swelling behavior of ZnO Hydrogels. The ZnO nanocomposite hydrogels showed potent antimicrobial activity on pathogenic bacteria Escherichia coli and Staphylococcus aureus and fungi Candida albicans.

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