Journal
ANALYTICAL CHEMISTRY
Volume 78, Issue 20, Pages 7346-7350Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ac060829h
Keywords
-
Categories
Ask authors/readers for more resources
Materials multifunctionality for optical sensing of adsorbates has obvious advantagess - in addition to the potential for greater sensitivity, the different length scales associated with a variety of optical phenomena allow a greater variety of adsorption characteristics to be examined. Here, we show that ultrathin (similar to 100 nm) nanoporous gold membranes possess features of both planar metal films that exhibit propagating SPR excitations and nanofeatured metals that exhibit localized SPR excitations. This is the first report of such multifunctionality in an optically active metal. We give illustrative examples of using this material to probe biorecognition reactions and to probe the structure evolution of a layer-by-layer deposition of charged dendrimers. Our results are consistent with the very different lengths of the tail of the evanescent field decays associated with each of these plasmon excitation modes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available