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Research Journal of Pharmacy and Technology
Year : 2020, Volume : 13, Issue : 1
First page : ( 135) Last page : ( 140)
Print ISSN : 0974-3618. Online ISSN : 0974-360X.
Article DOI : 10.5958/0974-360X.2020.00027.X

Biological Synthesis, Characterisations and Antimicrobial activities of manganese dioxide (MnO2) nanoparticles

Joshi Naveen Chandra1,*, Joshi Ekta2, Singh Ajay3

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)

*Corresponding Author E-mail: drnaveen06joshi@gmail.com

Online published on 24 February, 2020.


In the present study, we have successfully synthesized manganese dioxide nanoparticles (MDONPs) using the leaves extract of Datura stramonium as reducing agents. The synthetic biological method was found highly efficient, low cost and eco-friendly. The formation of MDONPs was confirmed by visual colour change of solutions and UV-Visible spectroscopy. Biologically synthesized MDONPs have been characterized by using different analytical methods such as UV-Visible, Fourier transform infrared spectroscopy (FTIR), Powder X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM) and Energy-dispersive X-ray spectroscopy (EDS); all these techniques indicated the efficient formation of MDONPs. The antimicrobial activity of MDONPs was checked by using well diffusion method against Staphylococcus aureus, Proteus vulgaris, Salmonella typhi, Streptococcus mutans and Escherichia coli and MDONPs found powerful antimicrobial agents.



Manganese dioxide nanoparticles, Datura stramonium, Biological synthesis, Characterisations, Antimicrobial activity.


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