Scientists at Clemson University managed to extend the lifespan of florescent nanoparticles, which are used for all sorts of biomarking-related purposes. Because these nanoparticles are single molecules just about the site of a protein, they can be distributed pretty much everywhere in living tissue, penetrating into every nook and cranny. Now, they've even made a florescent nanoparticle so bright that you can put it inside a cell and it shines right through. Now that's a bright idea