Jung, Jin-MiYoo, Hae-WookStellacci, FrancescoJung, Hee-Tae2011-06-062011-06-062011-06-06201010.1002/adma.200903745https://infoscience.epfl.ch/handle/20.500.14299/68446Ultrasensitive DNA detection using enhanced two-photon excited fluorescence: DNA detection systems formed on a highly regular gold nanopattern over a large area show enhanced sensitivity from high to ultralow concentrations (similar to 10-11 M, see figure) target molecules. The observed two-photon excited fluorescence on the gold patterned surface is enhanced over two orders of magnitude compared with the molecules on the glass surface.SURFACE-PLASMON RESONANCEFILMSNANOPARTICLESFLUOROPHORESDISTANCEARRAYStext::journal::journal article::research article