Green Synthesis of Iron Nanoparticles using Aqueous Extract of Musa ornata Flower Sheath against Pathogenic Bacteria

Abstract

Saranya, et al.: Synthesis of Iron Nanoparticles against Pathogenic BacteriaIron nanoparticles were synthesized using Musa ornata flower sheath extract. The optimum precursor salt concentration, pH of the reaction mixture, ratio between reducing agent and precursor salt and time for the synthesis of iron nanoparticles were found to be 5 mM, 9.0, 3:7 and 0 th h, respectively. The synthesized iron nanoparticles were characterised by UV/Vis absorption spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction spectroscopy, atomic force microscope and particle size analyser. UV/Vis absorption showed a characteristic absorption peak of iron oxide nanoparticles in the range of 250-350 nm. Fourier transform infrared spectroscopy measurement was carried out to identify the possible molecules like carbonyl, CH and OH band. From the X-ray diffraction method, it was found that the average particle size of magnetite nanoparticles was found to be 43.69 nm. The synthesized iron nanoparticles had antibacterial activity against pathogenic bacteria like Staphylococcus aureus, Streptococcus agalactiae, Escherichia coli and Salmonella enterica by well diffusion method. This biosynthesis approach has been found to be cost effective, eco-friendly and promising for applications in various fields.

Green Synthesis of Magnetic Nanoparticles Using Satureja hortensis Essential Oil toward Superior Antibacterial/Fungal and Anticancer Performance

“…In this research, synthesized FeNPs had an absorption peak at 273 nm ( Figure 2 ). These results are in harmony with Saranya et al [ 47 ] and Pattanayak and Nayak [ 48 ], who reported the biosynthesis of FeNPs from Musa ornat e and Azadirachta indica , respectively, and showed sharp peaks in the range of 250-350 nm in UV–Vis spectra. Absorption peaks between 200 and 300 nm area were observed owing to the excitation of surface Plasmon vibrations in FeNP solution, which is identical to the characteristic UV-Vis spectra of Fe oxide NPs.…”

“…However, researchers suggest that the enzymes and compounds found in plant extracts are an essential section of the green synthesis of NPs [ 43 – 45 ]. It is also believed that biomolecules, including phenol, protein, and flavonoids in SH essential oil, play an essential role in reducing nanoions as a coating or reducing NPs [ 46 , 47 ].…”

Biological Synthesis of Nanoparticles Using Endophytic Microorganisms: Current Development

“…The synthesis of nanoparticles using this approach, can be carried out by several physical and chemical methods including: spinning, template support synthesis, plasma or flame spraying synthesis, laser pyrolysis, CVD, atomic or molecular condensation [31]. Biological routes can also be applied to reduce metallic ions into neutral atoms (zero valent atoms) for synthesis of nanoparticles with bottom-up approach, this method is so called green nanotechnology, in this case several biological sources, available in nature, are involved, such as: (i) utilization of microorganism (bacteria, fungi); (ii) utilization of plant extracts; (iii) utilization of microseaweeds; (iv) using enzymes and biomolecules [32,33].…”

Biosynthesis, Characterization and Antimicrobial Activity of Iron Oxide Nanoparticles Synthesized by Fungi

“…While, the analysis of iron nanoparticles using fungus Alternaria alternate showed a peak at 238 nm and another peak at 265 nm (Mohamed et al, 2015). Saranya et al (2017) stated that, UV/Vis absorption showed a characteristic absorption peak of iron oxide nanoparticles at 310 nm. On the other hand, Mahdavi et al (2013) reported that two absorption peaks of Fe-NPs that synthesized by Sargassum muticum aqueous extract were introduced at wavelengths 402 nm and 415 nm.…”