HeLa cells incubated with fluorescent organic nanoparticles for 24 hrs. Will Primrose, a PhD student in Dr. Zac Hudson lab, Dept of Chemistry, collected images using an Olympus FV1000 Laser Scanning Confocal microscope. Left image:Single photon images were captured with 405 nm laser light at 20% laser power with a 40x objective lens. Right image: Dark field image captured only light emitted between 525 nm and 625 nm.