Two-Photon Excited Fluorescence Enhancement for Ultrasensitive DNA Detection on Large-Area Gold Nanopatterns

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Ultrasensitive 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.
Publisher
Wiley-Blackwell
Issue Date
2010-06
Language
English
Article Type
Article
Keywords

SURFACE-PLASMON RESONANCE; FILMS; NANOPARTICLES; FLUOROPHORES; DISTANCE; ARRAYS

Citation

ADVANCED MATERIALS, v.22, no.23, pp.2542 - 2546

ISSN
0935-9648
DOI
10.1002/adma.200903745
URI
http://hdl.handle.net/10203/94130
Appears in Collection
CBE-Journal Papers(저널논문)
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