Utilization of neem leaf extract on biosynthesis of iron oxide nanoparticles

• 发表在: Molecules
• 主要作者: 2-s2.0-85073880007
• 格式: 文件
• 语言: English
• 出版: MDPI AG 2019
• 在线阅读: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85073880007&doi=10.3390%2fmolecules24203803&partnerID=40&md5=da4b0582a449f6cd06e8c5899f43df18

The present work reports the successful synthesis of biosynthesized iron oxide nanoparticles (Fe3O4-NPs) with the use of non-toxic leaf extract of Neem (Azadirachta indica) as a reducing and stabilizing agent. The successful synthesis was confirmed by infrared spectra analysis with strong peak observed between 400–600 cm−1 that corresponds to magnetite nanoparticles characteristics. X-ray diffraction (XRD) analysis revealed that iron oxide nanoparticles were of high purity with crystalline cubic structure phases in nature. Besides, the average size of magnetite nanoparticles was observed to be 9–12 nm with mostly irregular shapes using a transmission electron microscope (TEM) and was supported by field emission scanning electron microscope (FESEM). Energy dispersive X-ray analysis shown that the elements iron (Fe) and oxygen (O) were present with atomic percentages of 33.29% and 66.71%, respectively. From the vibrating sample magnetometer (VSM) analysis it was proven that the nanoparticles exhibited superparamagnetic properties with a magnetization value of 73 emu/g and the results showed superparamagnetic behavior at room temperature, suggesting potential applications for a magnetic targeting drug delivery system. © 2019 by the authors.