Fluorescence Microscopy

Using fluorescence microscopy, scientists tracked the uptake of WGP 3-6 (bright green) by immune cells called macrophages (left). The macrophages break down the WGP 3-6 into smaller fragments that bind to the surface of white blood cells called neutrophils (right), activating these key immune cells to protect the body against a wide range of challenges. Source: Journal of Immunology 2004 173: 807-817.