Researchers push the boundaries of optical microscopy
(PHYSorg.com Physics)

The field of optical microscopy research has developed rapidly in recent years. Thanks to the invention of a technique called super-resolution fluorescence microscopy, it has recently become possible to view even the smaller parts of a living cell. Now, by making a smart refinement to that technique, researchers at TU Delft have pushed its boundaries even further. Where previously objects measuring up to 10-20 nanometres could be observed, their method makes it possible to focus on structures of as tiny as 3 nanometres across.