A system for detecting a specific substance or analyte of interest is provided that includes one or more sensing units and an instrument for analyzing the sensing units. Each sensing unit preferably includes a substrate, an attachment layer and at least one capture layer that includes a ligand layer....http://www.google.es/patents/US6274384?utm_source=gb-gplus-sharePatente US6274384 - Method for specific substance and molecule detection
Method for specific substance and molecule detection
