OPTIMIZATION OF GREEN SYNTHESIS OF SILVER NANOPARTICLES BY USING HARPAGOPHYTUM PROCUMBENS ROOT EXTRACT
UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES B-CHEMISTRY AND MATERIALS SCIENCE(2021)
摘要
This paper reports on biosynthesis of silver nanoparticles (AgNPs) by a phytosynthesis method using an aqueous extract from Harpagophytum procumbens (Devil's claw) root for biomedical application. For AgNPs synthesis two ratios of vegetal extract: AgNPs 1mM solution have been used. Time evolution of AgNPs formation has been monitored by means of SPR band of UV-Vis spectroscopy, while nanomefric size of these nanoparticles has been confirmed by DLS measurements. Antioxidant properties have been evaluated by ABTS(+) and chemiluminescence techniques, demonstrating an 18.3 % capacity for ABTS(+) radicals capture and 75.5 % quenching of short-lived radicals.
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关键词
phyto-nanosynthesis,AgNPs,Harpagophytum procumbens (Devil,s claw),antioxidant activity
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