A Macrophage Cell (IMAGE) Rice University Caption By combining cross sections of a macrophage cell from the x-, y- and z-axes, researchers could examine how nanoshell-drug complexes (red) were distributed inside cells after a 24-hour period of incubation. A dye was used to distinguish the cell nucleus (blue). Credit O. Neumann/Rice University Usage Restrictions For news reporting purposes only. 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.