Investigation of the adsorption of biological molecules on the single layer hexagonal surface

One of the most important areas of nanotechnology is two-dimensional materials. The discovery of graphene and the understanding of its unique optical, mechanical, electronic and magnetic properties as it transitions from bulk to nanoscale have increased hopes for the future. The fact that the properties of these materials can be adjusted, thanks to the combination of the two dimensional materials, which emerged with the discovery of graphene, with organic molecules, highlights their use in the biomedical field. Blue arsenic phosphorene is a material in the two-dimensional family and the theoretical studies on its potential applications are ongoing. In this study, Density Functional Theory (DFT) was used to understand the interaction of blue arsenic phosphorene with Glycine and Serine organic molecules. In the first part of the study, the structural and electronic properties of blue arsenic phosphorene, which is used as a substrate, were revealed. In the second part, the changes in the structural and electronic properties were determined by creating defects on the surface. In the last part, structural optimizations are carried out for the interaction of pristine and defective surfaces with biomolecules. In order to determine the biosensing ability of the surface, its structural and electronic properties were analyzed. As a result of all these investigations, it has been seen that defective blue arsenic phosphorene surfaces are good candidates for the interaction of Glycine and Serine.