NOVEL ARRANGEMENT FOR BINDING SITES OF A DNA CHIP

摘要

The invention concerns a DNA chip (1) comprising a support (2) whereof the useful surface (2a) comprises an operating surface (3), a network of elementary sites (Xn) arranged on said operating surface, and a plurality of ligands fixed each in multiple number in respectively different elementary sites. The invention is characterized in that said useful surface of the support comprises said operating surface consisting of at least one operating ring (31) whereon elementary sites (Xn) are distributed, and a non-operating surface (4), practically free of any elementary site, arranged inside or at the center of said operating ring.