
A planar, rigid substrate made from a porous, inorganic material coated with cationic polymer molecules for attachment of an array of biomolecules, such as DNA, RNA, oligonucleotides, peptides, and proteins. The substrate has a top surface with about at least 200 to about 200,000 times greater surface area than that of a comparable, non-porous substrate. The cationic polymer molecules are anchored on the top surface and in the pores of the porous material. In high-density applications, an array ...











