Author(s): Naveen Chandra Joshi, Vivek Kumar, Ajay Singh, Rajendra Singh

Email(s): drnaveen06joshi@gmail.com

DOI: 10.5958/0974-360X.2019.00763.7   

Address: Naveen Chandra Joshi*1, Vivek Kumar2, Ajay Singh3, Rajendra Singh4
1Assistant Professor, Department of Chemistry, Uttaranchal University, Dehradun (India)
2Project Fellow, Department of Chemistry, Uttaranchal University, Dehradun (India)
3Professor, Department of Chemistry, Uttaranchal University, Dehradun (India)
Assistant Professor, Department of Chemistry, P. G. College, Gopeshwar (Uttarakhand)
*Corresponding Author

Published In:   Volume - 12,      Issue - 9,     Year - 2019


ABSTRACT:
Synthesis of metal and metal oxide nanoparticles using the extracts of biomaterials has many advantages over physical and chemical synthetic methods. Such biological or greener methods used to synthesise metal nanoparticles are highly efficient, low cost, environmentally friendly and convenient. In the present study, we have utilized the leaf extract of Urtica dioicaas reducing agent to synthesise silver nanoparticles (AgNPs) and the formation of nanoparticles confirmed by visual detection in which the colourless solution of silver nitrate (AgNO3) get changed into brownish colored solution. The biologically synthesised silver nanoparticles have been characterised by using different analytical methods such as UV-Visible, FTIR, XRD, FESEM and EDX. Further, the biologically synthesised AgNPs were found potential antibacterial agents against S. aureus, S. mutans, P. vulgaris and E. coli. The maximum zone of inhibitions has been observed for S. aureus and P. vulgaris at 12 mg/ml of AgNPs dosage.


Cite this article:
Naveen Chandra Joshi, Vivek Kumar, Ajay Singh, Rajendra Singh. Characterisations, Antimicrobial activities and Biological synthesis of silver (Ag) nanoparticles using the leaf extract of Urtica dioica. Research J. Pharm. and Tech 2019; 12(9):4429-4433. doi: 10.5958/0974-360X.2019.00763.7

Cite(Electronic):
Naveen Chandra Joshi, Vivek Kumar, Ajay Singh, Rajendra Singh. Characterisations, Antimicrobial activities and Biological synthesis of silver (Ag) nanoparticles using the leaf extract of Urtica dioica. Research J. Pharm. and Tech 2019; 12(9):4429-4433. doi: 10.5958/0974-360X.2019.00763.7   Available on: https://rjptonline.org/AbstractView.aspx?PID=2019-12-9-63


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RNI: CHHENG00387/33/1/2008-TC                     
DOI: 10.5958/0974-360X 

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