Novel bipyridyl-osmium complex conjugates and their use in electrochemical assays are described. The redox reversible-osmium complexes can be prepared to exhibit unique reversible redox potentials and can thus be used in combination with other electroactive redox reversible species having redox potentials...http://www.google.com.au/patents/US7045310?utm_source=gb-gplus-sharePatent US7045310 - Redox reversible bipyridyl-osmium complex conjugates
