Hi Can anybody help me get a proper immobilization procedure for the following antigen antibody reaction .. antibody : goat anti-mouse IgM antigen - mouse IgM pure gold surface used for immobilization . Experiment is done using QCM technique Does this antibody bind with pure gold surface ? Is there any necessity of any kind of thiol or protein to develope the antibody binding on the surface ? I am looking forward for any type of suggestions on this topic. Santanu __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail