Big Problems, Small Solutions Episode 005 – Marc Masa from Leitat (on stem cell tracking with nanoparticles) Posted on August 28, 2020October 8, 2020 by Scott McCormick Our latest episode of Big Problems, Small Solutions is out! Here, we’re talking to Marc Masa from Leitat about their nTrack project, using gold and gold-shell/iron-core nanoparticles to track stem cells inside the body. Share this:FacebookTwitterLinkedIn