Honeycombed Time-release Particles (IMAGE) DOE/Pacific Northwest National Laboratory Caption Small chemical ornaments (cones) slow the release of anti-cancer antibodies (blue) from this functionalized mesoporous silica (orange) (artist's rendering, not to scale) Credit Mike Perkins/PNNL Usage Restrictions Credit PNNL 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.