Euphorbia herita leaf extract as a reducing agent in a facile green synthesis of iron oxide nanoparticles and antimicrobial activity evaluation

In recent years, nanotechnology has emerged as a start-of-the-art, with multifarious applications in a wide array of fields. Studies on green synthesis of nanoparticles moves forward these days. The present work involves the green method of synthesizing Iron oxide nanoparticles [Fe2O3] by Phyllanthus Niruri leaf extract and NaOH which acts as a precipitating agent. Furthermore, the green synthesized Iron oxide nanoparticles were characterized and its antibacterial activity was investigated. As this plant extract is more beneficial, it is energy efficient, low cost and environmentally friendly process than the biohazardous chemical synthesis. Iron oxide nano particles are gaining importance for their uses in environmental remediation technologies. The characterization of nano particles includes the IR, UV-Vis, and Size determination using SEM and XRD. The average crystalline size of the iron oxide nanoparticles was calculated by Debye’s Scherrer formula,d = 12.34nm. The analytical studies revealed that the synthesized Iron oxide nanoparticles almost have the identical size and morphology. Thus, the above studies concluded, the synthesized material was Iron oxide nanoparticles.

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Structural Characterization, Antimicrobial and Antioxidant Assay of Biogenically Synthesized Maghemite (γ-Fe2O3) Nanoparticles

Journal of Pharmaceutical Research International ◽

10.9734/jpri/2021/v33i43b32522 ◽

2021 ◽

pp. 32-41

Author(s):

A. Leema Rose ◽

B. Shabushree ◽

Preeja P. Thattil

Keyword(s):

Antimicrobial Activity ◽

Iron Oxide ◽

Iron Oxide Nanoparticles ◽

Leaf Extract ◽

Ferrous Sulphate ◽

Diffusion Method ◽

Oxide Nanoparticles ◽

Fe2o3 Nanoparticles ◽

X Ray

Aims: The present study focused on the optical and morphological characterization, antioxidant and antimicrobial activities of the biogenically synthesized iron oxide nanoparticles. Methods: The preliminary phytochemical screening was done for the leaf extract of Annona reticulate L. The leaf extract and Ferrous Sulphate heptahydrate were used to synthesize the iron oxide nanoparticles under room temperature. The determination of antioxidant activity was done using DPPH free radical scavenging assay and the determination of antimicrobial activity using disc diffusion method. Results: The UV-visible spectra showed the sharp absorption peak at 278 nm. The Fourier-transform infrared spectroscopy studies revealed the role of phytochemical constituents in the leaf extract for the iron oxide nanoparticles formation. X-ray diffraction pattern showed the presence of γ phase of Fe2O3 nanoparticles. Scanning electron microscope analysis showed the moderately spherical morphology of γ-Fe2O3 nanoparticles and Energy-dispersive X-ray peaks showed the presence of iron and oxygen in the synthesized nanoparticles. Particle size analysis showed that the synthesized γ-Fe2O3possessed an average size of 115.9 nm. Conclusion: The synthesized γ-Fe2O3 nanoparticles have potential antioxidant and antimicrobial activity.

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Green Synthesis and Characterization of Iron Oxide Nanoparticles Using Phyllanthus Niruri Extract

Oriental Journal Of Chemistry ◽

10.13005/ojc/340547 ◽

2018 ◽

Vol 34 (5) ◽

pp. 2583-2589 ◽

Cited By ~ 8

Author(s):

Viju Kumar V. G. ◽

Ananthu A. Prem

Keyword(s):

Antimicrobial Activity ◽

Iron Oxide ◽

Green Synthesis ◽

Iron Oxide Nanoparticles ◽

Low Cost ◽

Iron Oxide Nanoparticle ◽

Oxide Nanoparticles ◽

Phyllanthus Niruri ◽

Synthesis Of Nanoparticles

Studies on green synthesis of nanoparticles moves forward a lot on these days. The present work involves the green method of synthesizing iron oxide nanoparticle from Phyllanthus niruri leaf extract. Furthermore, the green synthesized iron oxide nanoparticles were characterized and its antimicrobial activity was investigated. A characteristic comparison with chemical method of synthesis is also done, for iron nanoparticles. The characterization of nanoparticle includes the IR, UV-Vis, surface morphology and size determination using TEM, SEM, and XRD. The analytical studies revealed that the synthesized iron oxide nanoparticles from these two different methods have almost identical size and morphology. The synthesized iron oxide nanoparticles showed significant antimicrobial activity against the microbes, E. coli and P. aeroginosa. The studies concluded that the synthesis of iron oxide nanoparticles using plant extracts is more beneficial as it is an economical, energy efficient, low cost and environment-friendly process than the bio hazardous chemical synthesis. The present investigation may be a definite contribution to green chemistry in general and nano synthesis in particular.

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