Abstract: The present disclosure relates to the production of functional coatings for the controlled release of volatile agents. More specifically, the present disclosure relates to capsules, in particular microcapsules or nanocapsules, chemically functionalised with photocatalytic nanomaterials upon the internal or external surface of the wall of the capsule. The capsule, by solar action or artificial light, can have the same spectrum of electromagnetic radiation, and can release an active agent. The capsule can also transport the active agent, which has photocatalytic properties. The capsule has an external diameter of 0.1-500 ?m and can be formed by a wall and a nucleus to lodge the active agent. The present disclosure further relates to a method of obtainment of the capsules.

Abstract: A layered heterostructured coating has functional characteristics that enable the controlled release of volatile agents. The coating has photocatalytic properties, since it uses titanium dioxide, its derivatives or materials with similar photocatalytic properties (2), which upon solar irradiation open and/or degrade nano or microcapsules (3) and subsequently releases in a controlled form the volatile agents contained in them.