Nanostructures are substances or objects with at least one dimension between one and one hundred nanometers. The production, evaluation, and practical application of nanostructures are the main focuses of the numerous areas of nanotechnology. They talk on the creation and utilisation of nanostructures that are frequently researched and applied in nanotechnology in this section of the book. Simple techniques like solutions processing and sophisticated ones like enhanced lithography are used to create nanostructures. Contemporary research endeavours in the realm of nanostructure development primarily focus on the exploration of fundamental material characteristics, encompassing mechanical, electrical, and optical properties at the nanoscale. Additionally, researchers aim to innovate fresh applications within several engineering disciplines. Furthermore, significant endeavors have been made in the realm of nanostructure creation. We explore several distinctive characteristics of nanostructures in this chapter and talk about the applications were most vigorously explored.