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Surface-enhanced fluorescence of in situ synthesized polysilanesilver nanoparticles

Authors

  • Gabriela Sacarescu,

    1. ‘Petru Poni’ Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41 A, Iasi 700487, Romania
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  • Elena Taran,

    1. The University of Queensland, Australian Institute for Bioengineering and Nanotechnology (AIBN)/Australian National Fabrication Facility—Queensland Node (ANFF-Q), St Lucia 4067, Australia
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  • Bogdan C Donose,

    1. The University of Queensland, Advanced Water Management Centre (AWMC), St Lucia 4067, Australia
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  • Mihaela Simionescu,

    1. ‘Petru Poni’ Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41 A, Iasi 700487, Romania
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  • Valeria Harabagiu,

    1. ‘Petru Poni’ Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41 A, Iasi 700487, Romania
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  • Liviu Sacarescu

    Corresponding author
    1. ‘Petru Poni’ Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41 A, Iasi 700487, Romania
      Liviu Sacarescu, ‘Petru Poni’ Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41 A, Iasi 700487, Romania. E-mail: livius@icmpp.ro
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Liviu Sacarescu, ‘Petru Poni’ Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41 A, Iasi 700487, Romania. E-mail: livius@icmpp.ro

Abstract

To produce surface plasmons, silver nanoparticles are synthesized in situ in a pseudo-template system based on polyhydrosilanes. Adsorption on the silver nanoparticle surface produces a thin layer of polymer with properties different from those of bulk polysilane. The metal-adsorbed polymer layer serves as a spacer between the polysilane fluorophore and the plasmonic nanoparticle. This prevents quenching of the polysilane emission and leads to a strong surface-enhanced fluorescence through coupling of surface plasmons having a resonance frequency that matches the emission frequency of the polymeric emitter. Copyright © 2012 Society of Chemical Industry

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