German Patent DE2539242 Kind Code: A1 Abstract: A competitive radioimmunoassay for the measurement of digoxin in a serum sample in which the non-radioactive digoxin competes with a constant amount of a radioactively labeled digoxin tyramine analog comprising 3-O-(4-Hydroxyphenethylcarbamoyl) digoxigen...
The amplicons were conjugated with digoxin and streptavidin. The gold nanoparticles were coupled with the amplicons via streptavidin–biotin interactions and then immobilized on the test line via anti-digoxin antibodies. The control line contained anti-streptavidin antibodies to capture the excess gold ...