Abstract: A method of assaying for a ligand in a sample involves incubating the sample in contact with a specific binding partner for the ligand carried on one surface of an optical structure, irradiating the structure at a suitable angle or range of angles to the normal such that the resonance and/or total internal reflection of the radiation occurs within the optical structure and/or the layer of specific binding partner, and analyzing the radiation in order to determine whether, and if desired the extent to which and/or rate at which the generated radiation and/or optical characteristics of the optical structure are altered by complex formation.
Type:
Grant
Filed:
June 7, 1995
Date of Patent:
November 3, 1998
Assignee:
Ares-Serono Research & Development Ltd. Partnership
Inventors:
John Worthington Attridge, Ian Alexander Shanks