Two-photon excited fluorescence enhancement for ultrasensitive DNA detection on large-area gold nanopatterns

Jin Mi Jung, Hae Wook Yoo, Francesco Stellacci, Hee Tae Jung

Research output: Contribution to journalArticle

Abstract

(Figure Presented) 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 (∼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.

Original languageEnglish
Pages (from-to)2542-2546
Number of pages5
JournalAdvanced Materials
Volume22
Issue number23
DOIs
Publication statusPublished - Jun 18 2010

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ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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