VOLTAGE-GATED METAL-ENHANCED FLUORESCENCE, CHEMILUMINESCENCE OR BIOLUMINESCENCE METHODS AND SYSTEMS

摘要

In the present invention, it is demonstrated for the firsttime, the influence of electrical current on the ability of surface plasmonsto amplify fluorescence signatures. An applied direct current across silverisland films (SiFs) of low electrical resistance perturbs the fluorescenceenhancement of close-proximity fluorophores. For a given appliedcurrent, surface plasmons in "just-continuous" low resistance films aresparsely available for fluorophore dipole coupling and hence theenhanced fluorescence is gated as a function of the applied current.