Water-soluble Ag nanoclusters exhibit strong two-photon-induced fluorescence

Sandeep A. Patel, Chris I. Richards, Jung Cheng Hsiang, Robert M. Dickson

Research output: Contribution to journalArticlepeer-review

146 Scopus citations


Water-soluble ssDNA-encapsulated Ag clusters exhibit large two-photon cross sections reaching 50000 GM, with high quantum yields in the red and near-IR. Three distinct, spectrally pure, several atom clusters emitting at 660, 680, or 710 nm have been created with two-photon cross sections rivaling those of much larger water-soluble semiconductor quantum dots. Their stability, biocompatibility, and small size offer the promise of nontoxic, sensitive high-resolution biological imaging.

Original languageEnglish
Pages (from-to)11602-11603
Number of pages2
JournalJournal of the American Chemical Society
Issue number35
StatePublished - Sep 3 2008

ASJC Scopus subject areas

  • Catalysis
  • Chemistry (all)
  • Biochemistry
  • Colloid and Surface Chemistry


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