Nanostine is a company specialized in surface coating using ultrapure nanostructures. We have developed a physical methodology based on magnetron sputtering under ultra-high vacuum (UHV), which enables the deposition of impurity-free coatings while precisely controlling the size, composition, and distribution of the nanoparticles, without generating any waste during the process. Our technology is very interesting for high-value applications such as aerospace, energy, sensors, and nanomedicine.