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Luminescent silver clusters with covalent functionalization of graphene
Published in
2012
Volume: 116
   
Issue: 26
Pages: 14057 - 14061
Abstract
Brightly luminescent, atomically precise subnanometer clusters of silver protected by glutathione were covalently functionalized by solution phase thiolated graphene using ligand exchange. A hybrid molecule was formed, which was obtained in a nearly pure form by phase transfer from the aqueous to the organic phase. The resulting hybrid exhibited properties of both of these nanoscale materials. UV-vis, luminescence, XPS, EDAX, TEM, and Raman spectroscopy were used to characterize the hybrid structure, which showed the spectroscopic characteristics of both the constituents. The luminescence of the cluster was retained in the hybrid, along with features characteristic of graphene. Atomically precise clusters with covalently linked graphene will be useful for new applications in the areas of drug delivery, sensors, and catalysis. © 2012 American Chemical Society.
About the journal
JournalJournal of Physical Chemistry C
ISSN19327447
Open AccessNo
Concepts (19)
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    COVALENT FUNCTIONALIZATIONS
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    Functionalized
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    Glutathiones
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    Hybrid molecules
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    Hybrid structure
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    LIGAND EXCHANGES
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    Nano-scale materials
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    New applications
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    Organic phase
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    PHASE TRANSFER
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    SILVER CLUSTER
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    Solution phase
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    SPECTROSCOPIC CHARACTERISTICS
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    SUBNANOMETERS
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    Drug delivery
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    Graphene
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    Hybrid materials
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    Raman spectroscopy
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    Luminescence