Nanotechnology refers to science and engineering that occurs at a scale of less than 100 nanometers (nm). At the nanoscale, biological interactions take place. Our growing understanding of these interactions has resulted in a slew of nanotechnology-based applications currently being investigated. Nanotechnology advances are increasingly being used in the life sciences. Nanoscale designs and structures are being used in sectors like medicines, biotechnology, and tissue engineering. Nanotechnology's application in medicine has considerable potential with new technologies enhancing drug administration and providing novel diagnostic procedures. Different sections of nanotechnology are bringing science's almost incomprehensibly small device closer to reality, and at some time, advancements will be so large that they will touch all sectors of research and technology.