International Business Machines Corporation
Light-triggered sustained release of pesticides

Abstract:

A process of forming a sustained-release pesticide coating, a process of forming a sustained-release pesticide capsule, and a sustained-release pesticide coating are disclosed. The process of forming the sustained-release pesticide coating includes depositing a first layer that includes a first pesticide onto a surface, and depositing a second layer that includes a photodegradable material onto the first layer. The process of forming the sustained-release pesticide coating also includes depositing a third layer that includes a second pesticide onto the second layer. The process of forming the sustained release pesticide capsule includes selecting a pesticide, selecting a photosensitive compound, and encapsulating the pesticide in a photosensitive capsule that includes a polymer formed from the photosensitive compound. The sustained-release pesticide coating includes a pesticide and a material having a photosensitive component. The material is in contact with the pesticide, and temporarily prevents the pesticide from contacting a surface.