Nanotechnology on the table
Nanomaterials are materials with at least one of measurements between one and one hundred nanometers. A nanometer (i.e., one millionth of a millimeter) is fifty thousand times smaller than the diameter of a human hair, and so we are in a universe invisible to the human eye. It is a solid whose surface is one-centimeter square. If we divide this solid into millions of particles, the surface increases by a millionfold, and hence there is a huge increase in surface area and thus a better use of their properties, with a drastic reduction in the quantity used. Nanomaterials have applications in various fields – electronics, pharmaceuticals, energy, environment, food, packaging, textiles, cosmetics, etc. – which have not yet been fully explored still today.