One-Step Direct Amination of H-Nanocrystalline Diamond

The amine groups are generally used to graft biomolecules on biomaterial surfaces. High density amine groups were grafted on a H-NCD surface irradiated with UV photons in ammonia atmosphere. XPS analysis shows the presence of ~2.5% of oxygen which does not affect the diamond conductivity. UV irradiation in a 99% pure ammonia will be performed in the future to reduce the amount of oxygen and obtain better diamond performances.