GO/ZnO Biosensor Synthesis and Characterization for Biosensors

Abstract

In this study, GO/ZnO nanoparticles were synthesized using the solvothermal method and characterized for potential biosensor applications. The synthesized nanoparticles exhibited a high degree of crystalline structural purity, as confirmed by XRD analysis. The XRD pattern revealed characteristic peaks corresponding to the crystal planes of ZnO, indicating a typical wurtzite hexagonal structure. In addition, the synthesized nanoparticles were evaluated for their physical characteristics using transmission electron microscopy. The TEM analysis showed that the ZnO nanoparticles had a narrow size distribution, with an average particle size of approximately 25.19 ± 4.1 nm. The morphology of the nanoparticles was further examined, revealing that the ZnO nanoparticles were uniformly dispersed and localized within the GO sheets. Furthermore, the exfoliation of GO into single or few-layered sheets was achieved, as evidenced by its transparency in the TEM images. These findings suggest that the solvothermal synthesis method is effective in producing highly dispersed GO/ZnO nanoparticles with a narrow size distribution. The synthesized GO/ZnO nanoparticles showed promise for biosensor applications due to their uniform shape and distribution, as well as their small size.