Patent ID: 7341692
Filing Date: 2008-03-11
Classification: G01N

Abstract:
1. An apparatus, comprising: a first surface site layer having a first distal site end, wherein the first distal site end includes a first substantially inorganic surface having a first chemical composition selected from a group consisting of metals, semiconductors, insulators, and mixtures thereof, said first surface positioned within a polypeptide bonding region and having a selective bonding affinity for a polypeptide; a plurality of first interlayers between which said first surface site layer is interposed, wherein the first distal site end is distanced from said first interlayers; first and second supports, wherein said first surface site layer and said first interlayers are interposed between said first and second supports; and first and second conductors provided on said first and second supports and having respective first and second distal conductor ends positioned within said polypeptide bonding region; wherein said conductors are capable of applying an external voltage potential across said polypeptide bonding region.