Molecular nanotechnology is a technology in which molecular manufacturing depends on the ability to build structures to complex, atomic specification which defines mechanosynthesis. The technology in which nanoscale machines assemble macroscale products atom by atom, or molecule by molecule. The combination of physical activities in which the principle explains the chemistry, nanotechnologies, and the molecular machinery of life with the systems engineering principles found in recent macroscale factories.
Nano Toxicology A particle is defined as a small object that behaves as a full unit with relation to its transport and properties. Particles are further classified according to diameter. Ultrafine particles are alike as nanoparticles and in between 1 and 100 nm in size, fine particles are sized between 100 and 2,500 nanometers, and coarse particles cover a value between 2,500 and 10,000 nanometers