Micelle with Drug (IMAGE) Eindhoven University of Technology Caption Schematic figure of a micelle -- consisting of a hydrophilic shell (blue tails) and a hydrophobic core (red tails) -- encapsulating drug molecules (yellow). The drug molecules mostly gather at the core-shell interface (dashed-white line) of the micelle if the concentration of the drug is below the water solubility of the solvent, while if the concentration is above the solubility they gather in the core. Credit Alessandro Ianori Usage Restrictions Supplemented images are free to use when crediting License Licensed 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.