https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Evaluation of in vitro and in vivo anti-urolithiatic activity of silver nanoparticles containing aqueous leaf extract of Tragia involucrata https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34556 Tragia involucrata (TIA) and its silver nanoparticles (AgNPs) and to quantify the total phenol, flavonoid, terpenoid and sterol contents present in TIA. Quantification results suggested TIA to be a rich source of phenol, flavonoid and terpenoid and less of sterol content. The AgNPs were synthesized by a simple green method using aqueous extract of T. involucrata. The formation of AgNPs was confirmed through UV spectroscopy, particle size analysis, zeta potential, X-ray diffraction and transmission electron microscopy. The in vitro struvite growth inhibitory activity of the extract was performed using a single gel diffusion method. Samples incorporated with higher concentration of 2% TIA and AgNPs (200 µg mL-1) exhibited potent crystal growth inhibitory activity which was further supported by the dissolution of crystals in gel medium. Calcium oxalate stone formation was induced in rats by the oral administration of ethylene glycol in water. Stone formation was assessed by increase in the levels of calcium and phosphorous in the urine and accumulation of nitrogenous substances like urea, creatinine in renal tissues and blood. Prophylactic treatment with TIA and AgNPs showed significant anti-urolithiatic activity with normalization of the mineral contents of the urine and serum samples. Histopathological analysis of the kidney of TIA- and AgNP-treated animals showed no CaOx deposits and a normal architecture of the kidney cells. We conclude that aqueous extract of T. involucrata and its AgNPs has potential for the treatment of patients with recurrent stones.]]> Wed 27 Mar 2019 10:19:37 AEDT ]]> Is using nanosilver mattresses/pillows safe? A review of potential health implications of silver nanoparticles on human health https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47746 Wed 25 Jan 2023 15:56:36 AEDT ]]> Adsorption of endocrine disruptive congo red onto biosynthesized silver nanoparticles loaded on Hildegardia barteri activated carbon https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47004 Tue 13 Dec 2022 11:13:24 AEDT ]]> Green synthesis and antibacterial potential of artemisia vulgaris extract in silver nanoparticles against wound bacteria https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49923 Thu 15 Jun 2023 11:20:40 AEST ]]> Facile use of silver nanoparticles-loaded alumina/silica in nanofluid formulations for enhanced catalytic performance toward 4-nitrophenol reduction https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44455 Thu 13 Oct 2022 15:15:23 AEDT ]]> Silver nanoparticles in aquatic sediments: Occurrence, chemical transformations, toxicity, and analytical methods https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48853 Thu 13 Apr 2023 09:52:55 AEST ]]> Higher order plasmonic modes excited in ag triangular nanoplates by an electron beam https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:29297 Sat 24 Mar 2018 07:34:12 AEDT ]]> Potential therapeutic activity of Phlogacanthus thyrsiformis Hardow (Mabb) flower extract and its biofabricated silver nanoparticles against chemically induced urolithiasis in male Wistar rats https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30865 Phlogacanthus thyrsiformis used in culinary recipes in the north eastern India are also widely used as a folklore medicine for the treatment of kidney stones and liver disorders. The aim of this study was to evaluate the prophylactic and therapeutic activity of the aqueous extract of P. thyrsiformis flowers and its biofabricated silver nanoparticles against struvite urinary stones and calcium oxalate kidney stones. A kidney stone inhibition study was carried out on struvite stones grown in gel medium and calcium oxalate stones in rat models using an aqueous extract of P. thyrsiformis flowers and its biofabricated silver nanoparticles. The aqueous extract of P. thyrsiformis flowers and their biofabricated silver nanoparticles, obtained by a green synthetic method, were used to treat struvite urinary stones in vitro and calcium oxalate kidney stones in vivo. Struvite stones were grown in tubes by gel diffusion technique and were treated with varying concentrations of the extract and its nanoparticles. The size of the struvite stones was monitored for 96 h using a travelling microscope. Calcium oxalate stones were induced in male Wistar rats by feeding ethylene glycol-ammonium chloride mixture for 14 days. Both, prophylactic and therapeutic activities were evaluated by analyzing the urine, serum and histopathological parameters of the rats. The qualitative screening of water extract unveiled the presence of flavonoids as a major constituent. Both, the extract and the nanoparticles effectively reduced the size of struvite stones in vitro and eliminated calcium oxalate stones in Wistar rats in vivo. The potent therapeutic activity of both extract and silver nanoparticles was observed as compared to preventive activity. Anti-urolithiatic potency can be attributed to the presence of flavonoids.]]> Sat 24 Mar 2018 07:26:37 AEDT ]]>