Identification of phytochemicals capping the biosynthesized silver nanoparticles by Wrightia tinctoriaand evaluation of their in vitro antioxidant, antibacterial, antilarvicidal, and catalytic activities

Autor: Amutha, E., Sivakavinesan, M., Rajaduraipandian, S., Annadurai, G.
Zdroj: Emergent Materials; 20220101, Issue: Preprints p1-10, 10p
Abstrakt: Abstract : Scientists have recently become interested in biosynthesis of nanoparticles due to the necessity to discover novel synthesis processes that are safe, cost-effective, and dependable. Metal oxide nanoparticles are garnering increasing attention in a wide range of applications. In this research, we used Wrightia tinctoriaextract, a natural non-toxic hydrocolloid, to make Ag nanoparticles and evaluated their potential antibacterial, photocatalytic, and antioxidant applications. Scanning electron microscopy, X-ray diffraction, UV–visible spectroscopy, and FTIR spectroscopy were used to evaluate the biosynthesized Silver nanoparticles (Ag NPs). Ag NPs derived from Wrightia tinctoriadisplayed better antibacterial efficacy against bacterial strains, according to the findings. Free radical scavenging activity of the produced Ag NPs is substantial. Ag NPs, on the other hand, may be useful as an antibacterial agent, according to our findings. When exposed to UV lamp irradiation, the produced Ag NPs showed photocatalytic activity against the degradation of rhodamine dye. The degradation efficacy against rhodamine dye was reported to be 86% for both chemical and biosynthesized Ag-NPs, respectively. Highlights:

Ag NPs were rapidly phytosynthesized via Wrightia tinctoriaaqueous extract.

Small sizes with a range of 10–35 nm and a main spherical shape were observed.

Promising photocatalytic degradation efficiency for Ag NPs against Rhodamine (86%).

Ag NPs showed high DPPH scavenging activity.

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