Go to content Go to the menu Go to the search

Vincent PELLAS


  • Core-shell nanoparticles
  • Colloidal synthesis
  • Surface Functionalization
  • Bioapplications


Elaboration of silica coated gold nanorods (AuNR@SiO2) – Towards versatile nanoplatforms for biomedical applications


Core shell AuNR@SiO2 nanorods are hybrid nanocomposites of great interest for their use In bioimaging, targeted drug delivery, photothermal therapy and biosensing. Silica as an outer shell coating material is known to improve the colloidal and thermal stability while sustaining the optical properties of the core. It can then be used as a nanoplatform for further functionalization or bioconjugation.

We envision in this project two applications of the core-shell material: in one hand the development of an efficient colorimetric biosensor for life style monitoring including detection of toxins in complex media. A thin silica shell will preserve the LSPR sensitivity to local changes in refractive index of the media. On the other hand AuNR with controlled silica thickness and pore organization will be used to encapsulate therapeutic agents which release can be triggered upon infrared irradiation in photothermal therapies

TEM images of Silica coated gold nanorods with different silica thickness and pore organization


Characterization techniques

UV-Vis, IR, Raman spectroscopies, DLS, Zêta potential, TGA, TEM and SEM.

Contact Informations

Mail(s) : vincent.pellas@upmc.fr

Function and attachment

PhD. Candidate


Traductions :
      • French Electron Spectroscopy Workshop

        The third edition of the French Electron Spectroscopy Workshop was held in Paris on January 21st-22nd, 2020. Organized by the French Vacuum Society, once again the workshop was in close partnership with the Condensed Matter Division of the French Physical Society and in collaboration with the Surfaces and Interfaces Workshop.

        Yacine presented one of his Ph.D. projects entitled: " Contribution of X-ray...

      • Sunny

        SunYoung Hur
        Sunny, PhD student in cotutelle with NTU Singapore, has joined our group for a year. Warm welcome!

      • Mona

        Mona SOroush
        Mona Soroush, PhD student from Teheran University has joined our group. Warm welcome!