Phytofabrication of silver nanoparticles using Myriostachya wightiana as a novel bioresource, and evaluation of their biological activities

Vadlapudi, Varahalarao; Amanchy, Ramars

doi:10.1590/1678-4324-2017160329

Cited by 36 publications

(23 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of DLS analysis are shown in Figure 5a‐d. The results of present study are in line with earlier reports (Vadlapudi & Amanchy, 2017). The DLS is generally used to study polydispersity and nanosize of NPs, and zeta potential is mainly based on surface charge, local environment of nanostructures, and movement of nanoparticles in electric field (Abbasi et al, 2019; Iqbal et al, 2019).…”

Section: Resultssupporting

confidence: 94%

Environmentally friendly green approach for the fabrication of silver oxide nanoparticles: Characterization and diverse biomedical applications

Abbasi

Iqbal

Nasir

et al. 2020

Microscopy Res & Technique

View full text Add to dashboard Cite

In the present study, green silver nanoparticles (Ag 2 ONPs) were prepared from aqueous and ethanolic leaves extract of Rhamnus virgata in a facile, green, cost-effective, and eco-friendly way. The color changes from light brown to brownish black determined the synthesis of Ag 2 ONPs (Aq) and Ag 2 ONPs (Et). The phytofabrication of Ag 2 ONPs was confirmed using various spectroscopic and microscopic techniques: energy-dispersive X-ray spectroscopy, dynamic light scattering, ultraviolet-visible spectroscopy, Fouriertransform infrared, X-ray powder diffraction, Raman, scanning electron microscopy, and transmission electron microscopy. Detailed in vitro biological activities determined significant biopotentials for Ag 2 ONPs. The Ag 2 ONPs (Aq) and Ag 2 ONPs (Et) were investigated for anticancer potential against HUH-7 (IC 50 : 9.075 μg/ml for Ag 2 O (Aq) and 25.66 μg/ml for Ag 2 O (Et)) and HepG2 (IC 50 : 25.18 μg/ml for Ag 2 O (Aq) and IC 50 : 27.74 μg/ml for Ag 2 O (Aq)) cell lines. Concentration-dependent cytotoxicity was performed against brineshrimps (IC 50 : 36.04 μg/ml for Ag 2 O (Aq) and 28.82 μg/ml for Ag 2 O (Et)) and Leishmanial parasite (amastigotes and promastigotes). Disc-diffusion method revealed significant antimicrobial activities. In addition, significant enzyme inhibitory activity and antiradical potentials were studied. The hemocompatible nature of Ag 2 ONPs (Aq) and Ag 2 ONPs (Et) was revealed using biocompatibility tests. In conclusion, the green Ag 2 ONPs (Aq) and Ag 2 ONPs (Et) are nontoxic and biocompatible and has shown significant biological activities. We further encourage in vivo studies to ensure biosafety and biocompatibility, so that they can be effectively utilized in nano-pharmaceutical industries.

show abstract

Section: Resultssupporting

confidence: 94%

Environmentally friendly green approach for the fabrication of silver oxide nanoparticles: Characterization and diverse biomedical applications

Abbasi

Iqbal

Nasir

et al. 2020

Microscopy Res & Technique

View full text Add to dashboard Cite

show abstract

“…It was found that the zeta potential value was strongly negative i.e. −18.7 mV which implies good colloidal nature of particle which was fairly stable [27].…”

Section: Dynamic Light Scattering (Dls) and Zeta Potential Analysismentioning

confidence: 98%

Green synthesis of TiO2 nanoparticles from Syzygium cumini extract for photo-catalytic removal of lead (Pb) in explosive industrial wastewater

Sethy

Arif

Mishra

et al. 2020

Green Processing and Synthesis

155

View full text Add to dashboard Cite

AbstractGreen synthesis is a simple, non-toxic, economical and eco-friendly approach for the synthesis of nanoparticles. In the present work, nanoparticles of titanium dioxide (TiO2 NPs) were synthesized using an aqueous solution of Syzygium cumini leaf extract as a capping agent. These green synthesized TiO2 NPs were further evaluated for photo catalytic removal of lead from industrial wastewater. Obtained nanoparticles were characterized using: high-resolution scanning electron microscopy (HRSEM), high-resolution transmission electron microscopy (HRTEM), X-ray energy dispersive spectroscopy (EDS), Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), dynamic light scattering (DLS) and Brunauer-Emmett-Teller (BET). Obtained results revealed that synthesized TiO2 NPs possess spherical morphology with anatase phase with a large BET surface area of 105 m2/g. Photo catalytic studies of TiO2 NPs for lead removal from explosive wastewater were performed in a self-designed reactor. Inductive coupled plasma spectroscopy (ICP) was used to determine the lead concentration. Obtained results witnessed 75.5% removal in chemical oxygen demand (COD) and 82.53% removal in lead (Pb2+). This application of green TiO2 NPs is being explored for the first time.

show abstract

“…The results reported in this work are in agreement with other works reported in the literature. In this regard, Vadlapudi and Amanchy (2017a) reported that biogenic silver nanoparticles synthesized using leaf extract of Myriostacha wightiana showed antibacterial activity against R. solanacearum. However, the maximum inhibition zone was achieved with 150 μg mL −1 (11 mm) and was lower compared with the positive control (chloranphenicol at 0.1%) (20.7 mm).…”

Section: Antimicrobial Properties Of Biosynthesized Nanoparticlesmentioning

confidence: 99%

Synthesis of Silver Nanoparticles Using Extract of Weeds and Optimized by Response Surface Methodology to the Control of Soil Pathogenic Bacteria Ralstonia solanacearum

Navas

Parada

Seabra

et al. 2019

J Soil Sci Plant Nutr

View full text Add to dashboard Cite

Extracts of leaf from five native Chilean weeds were evaluated in the biosynthesis of silver nanoparticles. The synthesis was monitored by UV-Vis spectra at 420 nm by typical formation of surface plasmon resonance. Moreover, the extract with major potential for the formation of nanoparticles was used to optimize the synthesis processes by response surface methodology, to obtain nanoparticles of small sizes by combination of three parameters (AgNO 3 and leaf extract concentrations and pH). Characterization of AgNPs was made by TEM, XRD, and DLS. The inhibitory activity was evaluated by disk diffusion method and minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were determined. Only two out of five extracts evaluated (Hypericum perforatum and Malva nicaensis) showed capacity to biosynthesize AgNPs. pH 10, AgNO 3 (1 mM), and leaf extract at 5% vv −1 were the optimal conditions to synthesize small AgNPs (< 40 nm). Inhibition zone from diffusion disk assay, MIC (30 μg mL −1) and MBC (40 μg mL −1), revealed a high antibacterial activity of AgNPs against Ralstonia solanacearum. Based on the results, the AgNPs biosynthesized from the leaf extract of H. perforatum is a promising antibacterial agent for its use in the control of R. solanacearum.

show abstract

Phytofabrication of silver nanoparticles using Myriostachya wightiana as a novel bioresource, and evaluation of their biological activities

Cited by 36 publications

References 30 publications

Environmentally friendly green approach for the fabrication of silver oxide nanoparticles: Characterization and diverse biomedical applications

Environmentally friendly green approach for the fabrication of silver oxide nanoparticles: Characterization and diverse biomedical applications

Green synthesis of TiO2 nanoparticles from Syzygium cumini extract for photo-catalytic removal of lead (Pb) in explosive industrial wastewater

Synthesis of Silver Nanoparticles Using Extract of Weeds and Optimized by Response Surface Methodology to the Control of Soil Pathogenic Bacteria Ralstonia solanacearum

Contact Info

Product

Resources

About