Research team led by Göttingen University combine two techniques to achieve isotropic super -resolution imaging Over the last two decades, microscopy has seen unprecedented advances in speed and resolution. However, cellular structures are essentially three-dimensional, and conventional super-resolution techniques often lack the necessary resolution in all three directions to capture details at a nanometer scale. A research team led by Göttingen University, including the University of Würzburg and the Center for Cancer Research in the US, investigated a super-resolution imaging technique that involves combining the advantages of two different methods to achieve the same resolution in all three dimensions; this is -isotropic- resolution. The results were published in Science Advances.
-By combining the established concepts, we developed a new technique for super-resolution microscopy. Its main advantage is it enables extremely high resolution in three dimensions, despite using a relatively simple setup,- says Dr Jan Christoph Thiele, first author of the publication, Göttingen University. -This will be a powerful tool with numerous applications to resolve protein complexes and small organelles with sub-nanometer accuracy. Everyone who has access to confocal microscope technology with a fast laser scanner and fluorescence lifetime measurements capabilities should try this technique,- says Dr Oleksii Nevskyi, one of the corresponding authors.
-The beauty of the technique is its simplicity. This means that researchers around the world will be able to implement the technology into their microscopes quickly,- adds Professor Jörg Enderlein who led the research team at the Biophysics Institute, Göttingen University. This method shows promise to become a powerful tool for multiplexed 3D super-resolution microscopy with extraordinary high resolution and a variety of applications in structural biology.
Original publication: Thiele et al, Isotropic three-dimensional dual-color super-resolution microscopy with metal-induced energy transfer, Science Advances 2022. DOI: 10.1126/sciadv.abo2506