Nanotechnology is science, engineering, and technology conducted at the nanoscale, which is about 1 to 100 nanometers. Physicist Richard Feynman is considered the father of nanotechnology. Nanoscience and nanotechnology are the study and application of extremely small things and can be used across all the scientific fields, such as chemistry, biology, physics, materials science, healthcare and engineering.Nanotechnology is the management of materials on an atomic or molecular scale expressly to build microscopic and nanoscale devices (such as robots). Placing atoms as though they were bricks, nanotechnology will give us complete control over the structure of matter, allowing us to build any substance or structure permitted by the laws of nature.