HYBRID EVENT: You can participate in person at Rome, Italy or Virtually from your home or work.

10th Edition of World Nanotechnology Conference

March 10-12, 2025

March 10 -12, 2025 | Rome, Italy
World Nano 2022

Salvatore Petralia

Salvatore Petralia, Speaker at Nanotechnology conferences
University of Catania, Italy
Title : Photothermal-responsive nanostructured materials for biomedical applications


Luminescent and photothermal nanostructured materials are one of the most important achievements in the fast-growing field of nanotechnology. The combination of multi-responsive Shell with luminescent and photothermal Core has led to promising applications in various fields. These nanosystems are largely studied as promising photothermal agents in emerging nanotechnologies such as photoinduced-enzymatic reaction, photothermal antibacterial effect, photothermal and photodynamic therapies (PTT and PDT), gene-therapy and photothermal triggered drug and gene delivery.

In our laboratories we have developed innovative photochemical and chemical preparation methods for the production of photothermal nanostructured materials including: i) photothermal carbon based core-shell nanocomposites ii) Carbonized polymers nanodots,  iii) gold-nanostructures, iv) water-soluble β-cyclodextrin/metal (Pt) and β-cyclodextrin/metal oxide (Co3O4) nanoparticles as photothermal agents for photo-induced enzymatic reaction, v) multicolors and photothermal boron-doped carbon dots for bioimaging and vi) TiO2/AuNPs/PNIPAM nanocomposites for photothermal and photocatalytic dual-effect triggered by visible/UV light exposition.  

The nanostructured materials, whose design was supported by Molecular Dynamic simulation investigations, exhibited high photothermal conversion efficiency and no toxicity to eukaryotic cells. Experiments confirmed also an excellent thermally induced activity to be used for biomedical applications.

Audience take-away:

  • To increase the knowledge about the photothermal effect and the photothermal nanostructured materials.
  • How to perform photothermal experiments.
  • How to design photothermal materials.


Salvatore Petralia, received the PhD in Chemistry from University of Catania (Italy), in 2003. In 2020 he joined University of Catania as Researcher of Chemistry. From 2004-2020 he was Technology Development sect. Manager at STMicroelectronics, covering several R&D positions and leading multidisciplinary teams focused on the development of nanostructured materials and chemical processes for biosensing applications. The research activity over the years has covered multidisciplinary aspects of chemistry, photochemistry, nanostructured materials, biosensing and bioMEMS silicon technology. In this field he is co-author of 120 peer reviewed scientific publications, 1 chapter of book and co-inventor of 11 patent applications.