Phytosynthesis of silver nanoparticles using the leaves extract of Ficus talboti king and evaluation of antioxidant and antibacterial activities

Abstract

The present study, the synthesis of silver nanoparticles (AgNPs) at 90 °C temperature using an aqueous extract from Ficus talboti leaf and the antioxidant and antibacterial activities of the AgNPs obtained. The devised method is simple and cost-effective, and it produces spherical AgNPs of size 11.9 ± 2.3 nm. The synthesized AgNPs was characterized as UV-vis spectrum and obtain a peak at 438 nm. The phytochemical study result shows that the secondary metabolites such as alkaloids, saponins, phenolic compounds, tannin, flavonoids, phytosterol, and glycosides may be responsible for reducing as well as capping silver ions into AgNPs. Transmission electron microscopic (TEM) studies of the particles revealed a dominance of spherical particle AgNPs. The face centered cubic structure of the AgNPs was confirmed by X-ray diffraction (XRD) peaks at 111°, 200°, 220°, and 311°; SAED patterns confirms the plane of silver nanoparticle planes with clear circular spots on the selected area electron diffraction (SAED). Elemental analysis was done by energy dispersive X-ray analysis (EDX). In addition, this study evaluated the in vitro antioxidant and antibacterial properties of the biosynthesized AgNPs that were found to be significant.

Green synthesis of silver nanoparticles using Anthemis atropatana extract: characterization and in vitro biological activities

“…After several minutes, the colourless reaction mixture slowly turned into a dark-brown suspension (Figure 1). This indicated that silver ions in the reaction have been converted to elemental silver, which was consistent with other reports of green synthesis using different plant extracts [20,21]. In our study, the rate of synthesis was very high and it was complete in 10 min.…”

Eugenia uniflora L. Silver and Gold Nanoparticle Synthesis, Characterization, and Evaluation of the Photoreduction Process in Antimicrobial Activities

“…E. uniflora L. phytochemicals, such as saponin, tannins, phenolic compounds, and flavonoids [ 51 , 52 ], interact with AgNO 3 reduced to elemental silver or gold. Biosynthesis probably involves quercetin [ 53 ], carotenoids, and luteolin [ 54 ].…”

Elemental Silver Nanoparticles: Biosynthesis and Bio Applications

“…In all of them only AgNO 3 was used as a precursor containing Ag(I) for the Ag-NP synthesis. Particles having a spherical and/or oval (ellipsoidal) shape were identified in most of the experiments; shapes differed from those, were observed in the experiment much rarely [91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108]. In this connection, it should be noted that, spherical and oval shapes are conglomerates of smaller “embryonic” particles of elemental silver, which are complex combinations of “starting” geometric forms indicated in [19].…”

“…In [33], spherical Ag-NPs 25–59 nm in size were synthesized using the Chrysanthemum indicum flower extract. In all, in the last 10 years a variety of plants were used to synthesize spherical Ag-NPs [34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93]; the information about these plants, as well as the shape and size obtained with their use of elemental silver nanoparticles are presented in Table 1 at the end of this section of the paper. As can be seen from the data in the given table...…”