Green synthesis, characterization and biological activity of Solanum trilobatum-mediated silver nanoparticles

This study has been carried out to synthesis of silver nanoparticles using green synthesis by using Streptomyces sp. .that isolating from soil and Investigation the antifungal activity of it. Results shown ,that silver nanoparticles were synthesized using Streptomyces sp in present of silver nitrate and the color change to brown .UV-Vis spectrophotometer appear peak in wavelength at 420 nm which is prescribed for silver nanoparticles .Also, microscope images by SEM ,showing the size of Ag nanoparticles in range 15-50 nm. Results of antifungal activity explain the ability of biosynthesis silver nanoparticles to inhibition the growth of fungus T.rubrum.

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Size-controlled green synthesis of silver nanoparticles mediated by gum ghatti (Anogeissus latifolia) and its biological activity

Organic and Medicinal Chemistry Letters ◽

10.1186/2191-2858-2-17 ◽

2012 ◽

Vol 2 (1) ◽

pp. 17 ◽

Cited By ~ 101

Author(s):

Aruna Kora ◽

Sashidhar Beedu ◽

Arunachalam Jayaraman

Keyword(s):

Silver Nanoparticles ◽

Biological Activity ◽

Green Synthesis ◽

Gum Ghatti ◽

Size Controlled

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Herbal Plant Synthesis of Antibacterial Silver Nanoparticles by Solanum trilobatum and Its Characterization

International Journal of Metals ◽

10.1155/2014/692461 ◽

2014 ◽

Vol 2014 ◽

pp. 1-8 ◽

Cited By ~ 13

Author(s):

M. Vanaja ◽

K. Paulkumar ◽

G. Gnanajobitha ◽

S. Rajeshkumar ◽

C. Malarkodi ◽

...

Keyword(s):

Silver Nanoparticles ◽

Antibacterial Activity ◽

Electron Microscope ◽

Green Synthesis ◽

Pathogenic Bacteria ◽

Diffusion Method ◽

X Ray ◽

Vis Spectroscopy ◽

Solanum Trilobatum ◽

Green Synthesized Silver Nanoparticles

Green synthesis method of nanomaterials is rapidly growing in the nanotechnology field; it replaces the use of toxic chemicals and time consumption. In this present investigation we report the green synthesis of silver nanoparticles (AgNPs) by using the leaf extract of medicinally valuable plant Solanum trilobatum. The influence of physical and chemical parameters on the silver nanoparticle fabrication such as incubation time, silver nitrate concentration, pH, and temperature is also studied in this present context. The green synthesized silver nanoparticles were characterized by UV-vis spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray (EDX), and transmission electron microscope (TEM). The SEM and TEM confirm the synthesis of spherical shape of nanocrystalline particles with the size range of 2–10 nm. FTIR reveals that the carboxyl and amine groups may be involved in the reduction of silver ions to silver nanoparticles. Antibacterial activity of synthesized silver nanoparticles was done by agar well diffusion method against different pathogenic bacteria. The green synthesized silver nanoparticles can be used in the field of medicine, due to their high antibacterial activity.

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Synergistic Antibacterial Efficacy of Biogenic Synthesized Silver Nanoparticles using Ajuga bractosa with Standard Antibiotics: A Study Against Bacterial Pathogens

Current Pharmaceutical Biotechnology ◽

10.2174/1389201020666191001123219 ◽

2020 ◽

Vol 21 (3) ◽

pp. 206-218 ◽

Cited By ~ 2

Author(s):

Sadia Nazer ◽

Saiqa Andleeb ◽

Shaukat Ali ◽

Nazia Gulzar ◽

Tariq Iqbal ◽

...

Keyword(s):

Silver Nanoparticles ◽

Green Synthesis ◽

Bacterial Pathogens ◽

Potential Effect ◽

Innovative Technology ◽

Multi Drug Resistance ◽

Phytochemical Screening ◽

Cell Proliferation Inhibition ◽

Agar Well Diffusion Assay ◽

Scanning Electron

Background: Multi-drug resistance in bacterial pathogens is a major concern of today. Green synthesis technology is being used to cure infectious diseases. Objectives: The aim of the current research was to analyze the antibacterial, antioxidant, and phytochemical screening of green synthesized silver nanoparticles using Ajuga bracteosa. Methods: Extract of A. bracteosa was prepared by maceration technique. Silver nanoparticles were synthesized using A. bracteosa extract and were confirmed by UV-Vis spectrophotometer, Scanning Electron Microscope (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). The antibacterial, anti-biofilm, cell proliferation inhibition, TLC-Bioautography, TLC-Spot screening, antioxidant, and phytochemical screening were also investigated. Results: UV-Vis spectrum and Scanning electron microscopy confirmed the synthesis of green nanoparticles at 400 nm with tube-like structures. FTIR spectrum showed that functional groups of nanoparticles have a role in capping and stability of AgNP. Agar well diffusion assay represented the maximum antibacterial effect of ABAgNPs against Escherichia coli, Klebsiella pneumoniae, Streptococcus pyogenes, Staphylococcus aureus, and Pseudomonas aeruginosa at 0.10 g/mL concentration compared to ABaqu. Two types of interactions among nanoparticles, aqueous extract, and antibiotics (Synergistic and additive) were recorded against tested pathogens. Crystal violet, MTT, TLC-bio-autography, and spot screening supported the findings of the antibacterial assay. Highest antioxidant potential effect in ABaqu was 14.62% (DPPH) and 13.64% (ABTS) while 4.85% (DPPH) and 4.86% (ABTS) was recorded in ABAgNPs. Presence of phytochemical constituents showed pharmacological importance. Conclusion: It was concluded that green synthesis is an innovative technology in which natural products are conjugated with metallic particles and are used against infectious pathogens. The current research showed the significant use of green nanoparticles against etiological agents.

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