Dr Christian Eggeling tells us how new imaging methods help us understand immunology at the molecular level. To study complex biological and immunological systems, such as living cells, scientists rely on highly sensitive and non-invasive analysis techniques. Super-resolution optical microscopy allows us to study immunological processes on the molecular level. We can get new insights into how our body reacts to viral or bacterial attacks. Dr Christian Eggeling's research focuses on the application and development of superior, ultra-sensitive, live-cell fluorescence microscopy techniques. This has the potential to help us design new drugs and developing new ways of treating diseases.