Nanotechnology is a field of science and technology that focuses on manipulating matter at the nanoscale—that is, at the atomic and molecular level. It involves the design, fabrication, and use of extremely small structures and devices, which can possess unique properties due to their minute size. Nanotechnology has applications in diverse fields such as electronics, medicine, materials science, and energy. By harnessing phenomena at the nanoscale, researchers can create groundbreaking new materials, drugs, and technologies that open up innovative possibilities for the future.