Water-Soluble Ag Nanoclusters Exhibit Strong Two-Photon-Induced Fluorescence
- 8 August 2008
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 130 (35), 11602-11603
- https://doi.org/10.1021/ja804710r
Abstract
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.Keywords
This publication has 22 references indexed in Scilit:
- Live Cell Surface Labeling with Fluorescent Ag Nanocluster Conjugates†Photochemistry and Photobiology, 2008
- Oligonucleotide-Stabilized Ag Nanocluster FluorophoresJournal of the American Chemical Society, 2008
- Ag Nanocluster Formation Using a Cytosine Oligonucleotide TemplateThe Journal of Physical Chemistry C, 2006
- Two-photon induced fluorescence of Cy5-DNA in buffer solution and on silver island filmsBiochemical and Biophysical Research Communications, 2005
- Cytotoxicity of Colloidal CdSe and CdSe/ZnS NanoparticlesNano Letters, 2004
- Two-Photon Microscopy of Cells and TissueCirculation Research, 2004
- DNA-Templated Ag Nanocluster FormationJournal of the American Chemical Society, 2004
- Probing the Cytotoxicity of Semiconductor Quantum DotsNano Letters, 2003
- Water-Soluble Quantum Dots for Multiphoton Fluorescence Imaging in VivoScience, 2003
- Design of Organic Molecules with Large Two-Photon Absorption Cross SectionsScience, 1998