background: compounds present in both green and black teas have been shown to inhibit the growth and activity of bacteria associated with mouth infections. the aim of this study was to assess the effects of green tea leaves extract on the aerobic mouth bacterial load. methods: a total of 25 volunteer female students, aged 20-25 years, were selected and then evaluated by green tea extract and mo...

today diabetes is one of the most common diseases in the world that affects half of the world population. today, the use of medicinal herbs especially green tea and cinnamon has been taken into consideration for relieving the symptoms of diabetes, but there were some different ideas about their effectiveness. so, this study was conducted to evaluate the effect of cinnamon and green tea extract,...

acetic acid has been applied as an efficient catalyst and a green solvent for the two–component condensation reaction consisting of benzaldehyde, 2-amino-benzamide. the advantages of this protocol was excellent yield, short reaction time, mild reaction conditions, higher availability, low costs, more environmentally friendly, lack of need for column chromatography and simple work-up procedure. ...

statement of the problem periodontal disease is a periodontal tissue inflammation caused by gram-negative and other bacteria. the release of various cytokins and mediators, including nitric oxide, in the inflammation area usually has determental effects on the periodontium, potentiating the inflammatory process. in order to prevent this side effect, investigatiors have used anti-oxidants such a...

Nano silica-H2SO4 is an efficient and mild catalysis system for the regeneration of aldehyde from aldoximes. Ketoximes are converted to amides by Beckmann rearrangement in the presence of nano silica-H2SO4. The reactions are carried out in solvent-free conditions under microwave irradiation (600 W) within 50-120 sec in good yields.