Surface immobilized hydrogels as versatile reagent reservoirs for microarrays

The accuracy of antibody-based microarrays depends on eliminating or at least minimizing the effect of cross-reactive components. In this work, a method to create a versatile, compartmentalized storage system for antibodies and soluble microarray reagents is described. These containers are made of hydrogel plugs immobilized on a slide facing the corresponding sub-array on a printed surface.