“Click” Chemistry Mildly Stabilizes Bifunctional Gold Nanoparticles for Sensing and Catalysis |
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| Authors: | Na Li Dr Pengxiang Zhao Dr Na Liu María Echeverria Dr Sergio Moya Dr Lionel Salmon Dr Jaime Ruiz Prof Dr Didier Astruc |
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| Institution: | 1. ISM, UMR CNRS 5255, Université Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, (France);2. Science and Technology on Surface Physics and Chemistry Laboratory, PO Box 718‐35, Mianyang 621907, Sichuan (China);3. ICMCB, UPR CNRS 9048, Université Bordeaux, 87 Avenue, Pey‐Berland, 33608 Pessac Cedex (France);4. CIC biomaGUNE, Paseo Miramónno182, Edif. “C”, 20009 Donostia‐San Sebastián (Spain);5. LCC, UPR CNRS 8241, 205 Route de Narbonne, 31077 Toulouse Cedex (France) |
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| Abstract: | A large family of bifunctional 1,2,3‐triazole derivatives that contain both a polyethylene glycol (PEG) chain and another functional fragment (e.g., a polymer, dendron, alcohol, carboxylic acid, allyl, fluorescence dye, redox‐robust metal complex, or a β‐cyclodextrin unit) has been synthesized by facile “click” chemistry and mildly coordinated to nanogold particles, thus providing stable water‐soluble gold nanoparticles (AuNPs) in the size range 3.0–11.2 nm with various properties and applications. In particular, the sensing properties of these AuNPs are illustrated through the detection of an analogue of a warfare agent (i.e., sulfur mustard) by means of a fluorescence “turn‐on” assay, and the catalytic activity of the smallest triazole–AuNPs (core of 3.0 nm) is excellent for the reduction of 4‐nitrophenol in water. |
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| Keywords: | click chemistry fluorescence gold nanoparticles reduction sulfur‐mustard analogues |
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