Plasmon-enhanced fluorescence of FITC labeled human IgG

Abstract

Plasmonic enhancement of fluorescence up to 7 times was demonstrated for human IgG labeled by FITC near silver nanoparticles. Nanostructured Ag films were formed by chemical route without expensive processes of nanolithography, molecular beam epitaxy, vacuum deposition. For excitation with linear polarized light the enhancement factor was shown to increase for p-polarization and to decrease for spolarization.