The method for coating a micro-structured surface (44) of a component (55) comprising different materials such as glass and silicon, comprises activating the surface and then coating, where an oxidizing solution, a base solution or an acid-oxidizing solution is used to activate the surface. A cuvette purifier is used for activating the surface as base solution. The surface is cleaned before the activation using isopropanol and water and is treated after cleaning in a hydrofluoric acid solution. Functional silane is used in nonpolar, aprotic or polar, protic solvent. The method for coating a micro-structured surface (44) of a component (55) comprising different materials such as glass and silicon, comprises activating the surface and then coating, where an oxidizing solution, a base solution or an acid-oxidizing solution is used to activate the surface. A cuvette purifier is used for activating the surface as base solution. The surface is cleaned before the activation using isopropanol and water and is treated after cleaning in a hydrofluoric acid solution. Functional silane is used in nonpolar, aprotic or polar, protic solvent. The component is treated in the reaction solution with ultrasound, is dried and annealed after the coating and is washed. Independent claims are included for: (1) a component made of glass and silicon and (2) a sprayer for the delivery of a certain quantity of fluid having medicine.
