Afzelia quanzensis bark extract for green synthesis of silver nanoparticles and study of their antibacterial activity

AbstractThe application of green synthesis in nanotechnology is growing day by day. It’s a safe and eco-friendly alternative to conventional methods. The current research aimed to study raw royal jelly’s potential in the green synthesis of silver nanoparticles and their antibacterial activity. Royal jelly served as a reducing and oxidizing agent in the green synthesis technology of colloidal silver nanoparticles. The UV–Vis maximum absorption at ~ 430 nm and fluorescence emission peaks at ~ 487 nm confirmed the presence of Ag NPs. Morphology and structural properties of Ag NPs and the effect of ultrasound studies revealed: (i) the formation of polydispersed and spherical particles with different sizes; (ii) size reduction and homogeneity increase by ultrasound treatment. Antibacterial activity of different concentrations of green synthesized Ag NPs has been assessed on Gram-negative S. typhimurium and Gram-positive S. aureus, revealing higher sensitivity on Gram-negative bacteria.

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Green synthesis of silver nanoparticles using Tridax procumbens: their characterization, antioxidant and antibacterial activity against MDR and reference bacterial strains

Chemical Papers ◽

10.1007/s11696-019-01028-w ◽

2019 ◽

Vol 74 (6) ◽

pp. 1817-1830 ◽

Cited By ~ 4

Author(s):

Reena Rani ◽

Dushyant Sharma ◽

Monika Chaturvedi ◽

Jaya Parkash Yadav

Keyword(s):

Silver Nanoparticles ◽

Antibacterial Activity ◽

Green Synthesis ◽

Bacterial Strains ◽

Tridax Procumbens

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Green synthesis of silver nanoparticles using Syngonium podophyllum leaf extract and its antibacterial activity

Materials Today Proceedings ◽

10.1016/j.matpr.2021.05.062 ◽

2021 ◽

Author(s):

Romana Naaz ◽

Vasi Uddin Siddiqui ◽

Sami Ullah Qadir ◽

Weqar Ahmad Siddiqi

Keyword(s):

Silver Nanoparticles ◽

Antibacterial Activity ◽

Green Synthesis ◽

Leaf Extract

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Antibacterial Activity of Silver Nanoparticles Synthesized by Bark Extract of Syzygium cumini

Journal of Nanoparticles ◽

10.1155/2013/431218 ◽

2013 ◽

Vol 2013 ◽

pp. 1-6 ◽

Cited By ~ 68

Author(s):

Ram Prasad ◽

Vyshnava Satyanarayana Swamy

Keyword(s):

Silver Nanoparticles ◽

Antibacterial Activity ◽

Cost Effective ◽

Diffusion Method ◽

Bark Extract ◽

Force Microscopy ◽

Atomic Force ◽

Cost Effective Method ◽

Uv Visible ◽

Major Attention

The unique property of the silver nanoparticles having the antimicrobial activity drags the major attention towards the present nanotechnology. The environmentally nontoxic, ecofriendly, and cost-effective method that has been developed for the synthesis of silver nanoparticles using plant extracts creates the major research interest in the field of nanobiotechnology. The synthesized silver nanoparticles have been characterized by the UV-visible spectroscopy, atomic force microscopy (AFM), and scanning electron microscopy (SEM). Further, the antibacterial activity of silver nanoparticles was evaluated by well diffusion method, and it was found that the biogenic silver nanoparticles have antibacterial activity against Escherichia coli (ATCC 25922), Staphylococcus aureus (ATCC 29213), Pseudomonas aeruginosa (ATCC 27853), Azotobacter chroococcum WR 9, and Bacillus licheniformis (MTCC 9555).

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