▎ 摘　　要

In this study, reduced graphene oxide nanosheets have been synthesised using hummers method in the laboratory conditions. Lateral thickness came to be similar to 8-10 nm thickness profile. Crystallographical properties of the reduced graphene oxide sheets were achieved from the different X-Ray Diffraction (XRD) studies, thereby achieving (002) for reduced graphene oxide, when compared to (001) (hkl) planes for intermediate Graphitic peak, respectively. The as-formed diffraction planes signifies the formation of diffraction planes at similar to 25 degrees diffraction angle for effective formation of Reduced graphene oxide, resulted from the reduction and exfoliation from pure Graphitic structure. The nano-composites of the as-prepared Fe-Doped Reduced graphene oxide sheets has been analysed, employing the Fourier-Transform Infra-Red (FT-IR) spectroscopy approach. The elucidation of the different molecular vibrational aspects of the transitional d-block metal Fe doped Reduced graphene oxide sheets have been studied for the justification of Fe-incorporated Reduced graphene oxide sheets. Further, the micrographical analyses of the Fe-Doped different layered RGO sheets has been evaluated by High-Resolution Transmission Electron Microscopy (HR-TEM) with their respective EDAX analyses exhibting an average diameter of the as-formed composites similar to 26.78 nm. Finally, the biophysical aspects of the as-prepared nano-composites were explored into the prokaryotic model organism of Gram -ve (Escherichia coli) and Gram + ve (Staphylococcus aureus) bacterium species. It is perceived that, uncovering and evaluating the underlying interaction(s) taking place between the magnetic based materials at the nano-scale posessing magnetically transistional metallic attributes within the biological organisms, would help to pave the way in unveiling the quantum-mechanical and thermodynamical attributes taking place at the nano-scale rate and kinetics of the material-bio interface.