Core and edge-specific functionalisation of graphene quantum dots to improve amino acid sensing and metal sensing

Abstract

The study given in the thesis "Core and edge-specific functionalization of graphene quantum dots to improve amino acid sensing and metal sensing." is primarily concerned with two concerns: first, the synthesis of Graphene Quantum Dots, and second, the sensing of metals and amino acids. Graphene quantum dots (GQDs) are zero-dimensional carbon allotropes that are made up of a monolayer or a few layers of graphene and have excellent characteristics. GQDs have both the properties of carbon dots (CDs) and graphene. GQDs can be mixed with other materials to create nanocomposites with outstanding characteristics and performance. Moreover, GQDs are environmentally beneficial due to their non-toxic and biologically inert qualities, which have piqued the interest of academic and industrial researchers worldwide. The primary goal is to synthesize Nitrogen-doped Graphene Quantum Dots and Graphene Quantum Dots using hydrothermal synthesis. Their structural and optical properties have been researched and characterized. Nitrogen has been doped into GQDs to broaden the material's functionalities. The control of its size and form was achieved by adjusting the time in the preparation parameter. GQDs and NGQDs have been thoroughly discussed in all areas, including their prospective uses in metal and amino acid sensing. Thus, Graphene Quantum Dots are used in biotechnology and as sensing elements in this course of work.