Bio chip and method for its production

摘要

Biochip (1) production involves immobilizing a receptor (5) on a carrier (2), which has a free binding site (6). The binding site to be detected is specific for a ligand. Some receptors have another binding site (7) additionally to the former binding site. The latter binding site is not binding specific for the ligand. An optical marker (8) is connected to the latter binding site. The optical marker produces a luminescence radiation (11) at the receptors depending on the bonding. Independent claims are included for: (1) a method for determining concentration of a sample, which involves bringing the sample in contact with receptor; and (2) a biochip, which has a carrier.