University of Pennsylvania
Caption: Macrophages are immune cell 'border guards' that have evolved to eat all sorts of foreign microbes, but they also eat many particles that are intended for therapeutics and imaging. A 'Minimal peptide "Passport"' attached to the particles provides recognition signals so that the particles are not eaten, thus improving delivery to diseased cells in the body.
Credit: Mary Leonard, Biomedical Art & Design, University of Pennsylvania
Usage Restrictions: With credit.
Related news release: Penn researchers develop protein 'passport' that help nanoparticles get past immune system