Immune Cells (image) Université de Genève Share Print E-Mail Caption Immune cells that ingested spider silk nanoparticles (in green). The endosomes - the part of the cell in which the nanoparticles release the vaccine - appear in blue. Credit © Laboratoire Bourquin - UNIGE Usage Restrictions None Share Print E-Mail 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.