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



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



Journal of the American Chemical Society 130(35): 11602-3



Water-soluble ssDNA-encapsulated Ag clusters exhibit large two-photon cross sections reaching 50 000 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.

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Accession: 056904689

Download citation: RISBibTeXText

PMID: 18686957

DOI: 10.1021/ja804710r



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