The invention provides methods of detecting a nucleic acid. The methods comprise contacting the nucleic acid with one or more types of particles having oligonucleotides attached thereto. In one embodiment of the method, the oligonucleotides are attached to nanoparticles and have sequences complementary...http://www.google.ca/patents/US7250499?utm_source=gb-gplus-sharePatent US7250499 - Nanoparticles having oligonucleotides attached thereto and uses therefor
