Plasma technology is based on the physical principle that by supplying energy
to matter, changes in its state happen so that solids becomes liquid, and liquids becomes gaseous. If energy is supplied to a gas, it is ionized and generates the PLASMA
, called the fourth state of matter
. This is an ionized gas rich of reactive species such as radicals, ions and electrons able to modify the surface properties of the materials exposed to it. It becomes possible to finely tune the surface properties of the materials through the fine adjustment of the experimental parameters, resulting in a customized “surface tailoring “ of materials, without affecting their bulk properties.