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Attomolar DNA detection with chiral nanorod assemblies
2013
Nature Communications
Nanoscale plasmonic assemblies display exceptionally strong chiral optical activity. So far, their structural design was primarily driven by challenges related to metamaterials whose practical applications are remote. Here we demonstrate that gold nanorods assembled by the polymerase chain reaction into DNA-bridged chiral systems have promising analytical applications. The chiroplasmonic activity of side-by-side assembled patterns is attributed to a 7-9 degree twist between the nanorod axes.
doi:10.1038/ncomms3689
pmid:24162144
pmcid:PMC3826651
fatcat:zwnxh4ygqfacrkzdjwke2besmm