| abstract |
Provided is a method of fabricating a substrate having on a surface thereof two or more spatially-resolved regions, each with a defined amount or concentration of one of one or more chemical components, the method comprising: associating a chemical component with particles of 1 μm to 500 μm diameter; electrostatically depositing the particles on the appropriate regions; and if a said spatially-resolved region is to receive a second chemical component, repeating steps (a) and (b) for that chemical component and the appropriate regions. |