(IMAGE) Concordia University Caption Adryanne Clermont-Paquette and Rafik Naccache: “By understanding the chemistry at the surface of these very small dots and by knowing their optical properties, we can use them to our advantage for many different applications.” Credit Concordia University Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.