Dr. Bruno Viana

Institut de Recherche de Chimie ParisTech (IRCP)

Paris, France

Control of the Fluorescence and Kinetic in Materials for Bioimaging

Next generation medical imaging requires materials which possess outstanding performance. For scintillators in the high energy imaging field (PET), high performance materials allow for a decrease in irradiation dosage re-ceived by patients during medical treatment and provide better resolution for more accurate diagnosis. For these applications, careful control of doping and point defects are required to optimize optical properties and limit the afterglow process. In contrast, materials with a long afterglow luminescence, also called persistent luminescence, could be used for a variety of other applications including emergency signing, luminous painting, and lightning sources. We recently proposed this concept as a new tool in optical imaging and bioimaging. In this case, the emission should be focused on the red-NIR range where the detection sensitivity is highest and where tissue effects are limited. Persistent nanoparticles with small size enable structural and functional imaging with applica-tions such as early diagnosis of tumors and the monitoring of cell biodistribution in vivo. This presentation will describe our recent research on scintillators and persistent luminescent materials.

Biography:

Bruno Viana received his PhD degree in Materials Science at University Pierre and Marie Curie, Paris in 1987. He joined CNRS as a researcher in 1988 and carried out postdoctoral research at UCLA and at USC in 1989-90. Dr. Viana is currently a Senior Scientist in the Material Sciences Department (IRCP Laboratory) at Chimie-Paristech research institute working on the preparation and the characterization of optical materials for photonics. He and his group focus on materials for laser, scintillation and bioimaging using persistent luminescence nanomaterials. Since 2014 he is responsible of the CNRS research network CMDO+ (http://cmdo.cnrs.fr/). Dr Viana has published more than 280 peer-reviewed scientific papers as well as several book chapters on materials for photonics. He has also been awarded 20 patents. Dr. Viana has organized and chaired many conferences, workshops and sym-posia and has had invited professorships at Kyoto University and the South China University of Technology.