Antibacterial activity of biochemically capped iron oxide nanoparticles: A view towards green chemistry

Author(s):  
Rabia Irshad ◽  
Kamran Tahir ◽  
Baoshan Li ◽  
Aftab Ahmad ◽  
Azka R. Siddiqui ◽  
...  
2017 ◽  
Vol 41 (5) ◽  
pp. 2055-2061 ◽  
Author(s):  
Tokeer Ahmad ◽  
Ruby Phul ◽  
Nafeesa Khatoon ◽  
Meryam Sardar

Iron oxide nanoparticles (IONPs) were preparedviaa co-precipitation method and were then characterized and evaluated for their antibacterial activity after modification withOcimum sanctumleaf extract.


2020 ◽  
Vol 11 (2) ◽  
pp. 2308-2314
Author(s):  
Momanyi Kerubo Rachael ◽  
Rajiv P

In this study, iron oxide nanoparticles were synthesized throughthe green chemistry method. It involved the use of plant extract for synthesis of metal oxide nanomaterials. Aqueous extract of Tridaxprocumbenswas employed for the production of iron oxide nanoparticles.  T. procumbens is a weed and it has good medicinal properties.The green chemistry approach provides a simple, cost-effective and eco-innovative method to the synthesis of nanomaterials as compared to the other alternative methods. Phase, crystal, surface chemistry, size, shape and element composition of nanoparticles were assessed and determined by various techniques like Fourier transform infrared spectroscopy (FTIR),X-Ray diffraction (XRD),Scanning Electron Microscopy (SEM) and Energy dispersion X-Ray (EDX). In addition, the antifungal properties of the biosynthesized nanoparticles were investigated against plant fungal pathogens. Spherical-shaped nanoparticles with a size of 26 ± 5 nm were obtained using the extract of T. procumbens.  Bio-molecules from T. procumbens served as reducing, cappingand stabilizing agents for the fabrication of nanoparticles. The highest zone of inhibition was obtained in S. rolfsii(16.5 ± 0.5)at 50 µg/ml of concentration of TFeONPs. Biosynthesized TFeONPs were capable of inhibiting the growth of fungal pathogens such as S. rolfsii and F. oxysporumand they might beemployed as antifungal agents in agriculture to control fungal infections.


2020 ◽  
Vol 126 (1) ◽  
Author(s):  
Ngozi Madubuonu ◽  
Samson O. Aisida ◽  
Ishaq Ahmad ◽  
S. Botha ◽  
Ting-kai Zhao ◽  
...  

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