Nanotechnology, which is the important technology of the 21st century, is the development and production of functional materials, tools and systems in these dimensions by understanding physical, chemical and biological events at the nanometer scale. It also opens new horizons in information, communication and science and technology by evaluating nanotechnology and nano-scale events that will shape the future and developing and applying similar ones. Nanotechnology is the technology of the information age. This technology has the power to revolutionize disease detection and treatment, environmental monitoring and protection, energy production and storage, crop production and food quality improvement, and the construction of complex structures. Nanotechnological research and studies; water treatment systems, energy systems, physical remediation, nano-medical, nano-health, legal and environmental applications, engineering, biology, chemistry, physics, computer programming, materials science and communication. Today, while nanotechnology creates many new working areas, its products are entering our daily lives with increasing speed. In this study, the application areas of nanotechnology, which has an important place in our lives, are presented.