HERCULES, CA – September 13, 2007 – Bio-Rad Laboratories, Inc. (AMEX: BIO and BIOb), a multinational manufacturer and distributor of life science research products and clinical diagnostics, today announced the availability of Bio-Rad’s product application guide (bulletin 5449A), which describes the application of Bio-Rad’s ProteOn™ NLC sensor chip for antibody-antigen, DNA-protein, and protein-protein interactions.