In his TED Talk, “Print your own medicine,” Lee Cronin explains his new idea of creating a 3-D printer which, instead of printing objects, prints medicine. The first question he asked, which led to this idea is “Could we ‘app’ chemistry?” The invention requires software, hardware, and chemical inks. The chemical inks would be provided with the printer and the blueprint for the chemical reaction would be downloadable. Then the molecules would be made within the printer using the software. It is a resource for immediate molecular assembly and quick treatment without needing to go to a chemist. In a larger scope, Cronin says they see this as becoming a resource for people to more successfully treat people on a more personal level: in regards to their genes, cells, and environment.