Nanomaterials are chemical substances or materials that are manufactured and used at a really small scale. A nanometer is one millionth of a millimeter - approximately 100,000 times smaller than the diameter of a person's hair.Nano-sized particles exist in nature and may be created from a spread of products, like carbon or minerals like silver, but nanomaterials by definition must have a minimum of one dimension that's but approximately 100 nanometers. Most nanoscale materials are too small to be seen with the eye and even with conventional lab microscopes.Materials engineered to such alittle scale are often mentioned as engineered nanomaterials (ENMs), which may combat unique optical, magnetic, electrical, and other properties. These emergent properties have the potential for nice impacts in electronics, medicine, and other fields. Some nanomaterials can occur naturally, like blood borne proteins essential for all times and lipids found within the blood and body fat. Scientists, however, are particularly curious about engineered nanomaterials (ENMs), which are designed to be used in many commercial materials, devices and structures.