With the advancement of technology it was observed that nanoparticles can help in various fields, because of this reason the main focus is on the synthesis of nanoparticles. Different types of methods are used for synthesis of Fe3O4 NPs like chemical reduction method and biological method. Biological synthesis of Fe3O4 NPs is more preferable because of the many limitations of chemical method. Iron nanoparticles are easily synthesized with the help of watermelon peel extract [green part of the watermelon]. Due to presence of flavinoids and sitosterol watermelon peel extract act as solvent, reducing and coating agent. Characterization of synthesized Fe3O4 NPs can be done with the help of UV spectrophotometer in range of wavelength [250-450]. The synthesized iron nanoparticles also had antibacterial activity. This method has been found eco-friendly, cost effective and less time consuming.
Please see the link :- https://www.ikprress.org/index.php/PCBMB/article/view/5177
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