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Plasmonic Nanoparticles for Biological applications

Noble metal nanoparticles have very different properties from those in the massive state. The most spectacular is the unique optical properties originating from the Localized Surface Plasmon Resonance. This phenomenon results in a very intense absorption band around 520 nm for Gold spherical particles 15 nm in diameter. The position of this band, which can be monitored by UV-Visible spectroscopy, depends naturally on the metal, but also on the medium, particularly its dielectric constant, the size and shape of the particle and also the interactions between particles. The plasmon effect leads to the creation, in the vicinity of nanoparticles, of a very intense electric field that leads to an exaltation of the response of certain vibrational spectroscopies, in particular Raman spectroscopy, a phenomenon that gave rise to Surface Enhanced Raman Scattering (SERS).

We synthesize a large panel of plasmonic nanoparticles ranging from spherical Gold or Silver, Hollow nanoshells, Gold nanorods, Core-shell Gold Silver and Silver Gold.

08/11/19

Traductions :
      • Vincent Pellas - Thesis Defense

        Congratulations to Vincent for his PhD defense and his work on the "Synthesis and characterization silica coated gold nanorods Au@SiO2 for biomedical applications ", performed under the supervision of Souhir Boujday & Michèle Salmain.

      • David Hu - Thesis defense

        Congratulations to David for his PhD defense and for his incredible work on Nanocomposites Photocatalysts UCNP@SiO2@ZnO, active under NIR light for wastewater treatment", performed under the supervision of Juliette Blanchard and Souhir Boujday. 

      • Valentin's arrival

        Warm welcome to Valentin for his 3 months Master 1 internship on the "Adsorption of thiolate molecules on gold surfaces" under the supervision of Souhir Boujday and Yacine Mazouzi.