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Eunkeu Oh, Fredrik K. Fatemi, Marc Currie, James B. Delehanty, Thomas Pons, Alexandra Fragola, Sandrine Lévêque-Fort, Ramasis Goswami, Kimihiro Susumu, Alan L. Huston and Igor L. Medintz PEGylated Luminescent Gold Nanoclusters: Synthesis, Characterization, Bioconjugation, and Application to One- and Two-Photon Cellular Imaging Particle & Particle Systems Characterization 30

Version of Record online: 28 FEB 2013 | DOI: 10.1002/ppsc.201200140

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Biocompatible, near-infrared luminescent gold nanoclusters (AuNCs) are synthesized directly in water using poly(ethylene glycol) (PEG)-dithiolane ligands terminating in either a carboxyl, amine, azide, or methoxy group. The AuNCs are demonstrated in high signal-to-noise one- and two-photon cellular imaging with minimal cytoxicity.

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