Phytomediated synthesis of magnetic nanoparticles by Murraya koenigii leaves extract and its biomedical applications

Green synthesis of nanoparticles is a facile method as they are eco-friendly and cost-effective and also the resources are easily available. Nowadays, the demand for magnetic nanoparticles has increased around 13% and they are used in magnetic sensing, medical imaging, wastewater treatment and antibiotic drugs. In this report, the eco-friendly green synthesis of magnetic iron nanoparticles was efficiently synthesized by using Murraya koenigii leaves extract. The UV–visible spectrum revealed the presence of a surface Plasmon resonance band at 240 nm and analyzed the formation of iron nanoparticles. X-ray diffraction pattern determined the crystallinity of nanoparticles. Fourier-transform infrared spectrum illustrated the functional groups of iron nanoparticles. The particle size distribution graph showed that the formed particles were in the range of nanometer. High-resolution transmission electron microscopy spectrum realized the spherical-shaped iron nanoparticles were ranging between 4 and 9 nm in size. The energy-dispersive X-ray spectrum and mapping revealed the iron, oxygen and carbon elements in the prepared nanoparticles. The vibrating sample magnetometer analysis showed the paramagnetic behavior of the prepared magnetic iron nanoparticles. The inhibition potent of magnetic nanoparticles on various human pathogens was revealed through antimicrobial assay. The antioxidant, anti-inflammatory and anti-diabetic assays revealed the biomedical behavior of the iron nanoparticles. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.