Physicists at Bielefeld University and the Arctic University of Norway in Tromsø have developed a photonic chip that makes it possible to carry out superresolution light microscopy, also called ‘nanoscopy’, with conventional microscopes. In nanoscopy, the position of single fluorescent molecules can be determined with a precision of just a few nanometres, that is, to a millionth of a millimetre. This information can be used to produce images with a resolution of about 20 to 30 nanometres, and thereby ten times that of conventional light microscopy.
