Nanostine is a spin-off of CSIC dedicated to surface coatings with high added-value nanoparticles. The potential of our technology lies in being able to produce coatings with very high purity, without any impurities and without generating any waste in the process. Nanostine's applications are in the energy sector, to improve the efficiency of solar cells or to improve the activity of electrodes in hydrogen production and energy storage in batteries. The technology can also be used in other sectors such as aerospace, sensors or nanomedicine.