"As used herein, the terms``microarray ,""`` bioarray ,""`` biochip""and``biochip array""refer to an ordered spatial arrangement of immobilized biomolecular probes arrayed on a solid supporting substrate."
The biomolecular probes areimmobilized on second linker moieties in contact with polymeric beads, wherein the polymeric beads are immobilized on first linker moieties in contact with the solid supporting substrate.