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Optically modulated fluorophores for selective fluorescence signal recovery

  • Chris I. Richards
  • , Jung Cheng Hsiang
  • , Dulal Senapati
  • , Sandeep Patel
  • , Junhua Yu
  • , Tom Vosch
  • , Robert M. Dickson

Research output: Contribution to journalArticlepeer-review

122 Scopus citations

Abstract

Fluorescence imaging in biological sciences is hindered by significant depth-dependent signal attenuation and highly fluorescent backgrounds. We have developed optically modulated near-IR-emitting few-atom Ag nanodots that are selectively and dynamically photobrightened upon simultaneous excitation with a secondary laser, enabling high-sensitivity image extraction to reveal only the demodulated fluorophores. Image demodulation is demonstrated in high-background environments to extract weak signals from completely obscuring background emission.

Original languageEnglish
Pages (from-to)4619-4621
Number of pages3
JournalJournal of the American Chemical Society
Volume131
Issue number13
DOIs
StatePublished - Apr 8 2009

Funding

FundersFunder number
National Institute of General Medical SciencesR01GM086195

    ASJC Scopus subject areas

    • Catalysis
    • General Chemistry
    • Biochemistry
    • Colloid and Surface Chemistry

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