No abstract

commonly known as 'sessile joy weed' or 'dwarf copperleaf' is found throughout the hotter parts of India up to an altitude of 1200 m. In Assam, the plant has been traditionally used in the treatment of jaundice along with other ailments. The study focuses primarily on the evaluation of hepatoprotective activity of the plant with special references to its putative protective role in carbon tetrachloride induced liver injury on Wister albino rat. The in vivo hepatoprotective activity of the methanolic extract at the dose of 250 mg/kg body weight was highly effective in controlling SGPT, SGOT, ALP, serum cholesterol and serum bilirubin level as compared to silymarin. The said extract also significantly lowered the lipid profile caused by CCl. The activity shown by methanolic extract of the whole plant of is of considered importance and thus justified its use in controlling hepatic diseases in traditional treatment system.

Biogenic synthesis of inorganic nanoparticles has been emerging as an important branch of nanobiotechnology. Biogenic silver nanoparticles (AgNPs) are proved to be potential antimicrobial agents against an array of pathogens. Aqueous extract of shade dried leaves of Conyza ambigua was used for the synthesis of AgNPs. The UV-VIS absorption spectroscopy, SEM, XRD were carried out to assess the formation AgNPs. SEM image divulges that AgNPs are quite polydispersed, the size ranging from 56 nm. The above AgNPs were effective against A.niger, A.flavus and Sclerotium rolfsii. This study move towards biogenic synthesis of AgNPs using dried biomass appears to be cost effective, eco-friendly to that of conventional methods of nanoparticles synthesis.