News & Scientific Highlights
Mass density distribution of intact cell ultrastructure
The determination of the mass density of cellular compartments is one of the many analytical tools that biologists need to unravel the extremely complex structure of biological systems. Cryo X-ray nanotomography reveals absolute mass density maps of frozen hydrated cells in three dimensions.
3-D-Nanostruktur eines Knochens sichtbar gemacht
Knochen bestehen aus winzigen Fasern, die etwa tausend Mal feiner sind als ein menschliches Haar. Mit einer neuartigen computerbasierten Auswertungsmethode konnten Forschende des Paul Scherrer Instituts PSI zum ersten Mal die Anordnung dieser Nanostrukturen innerhalb eines gesamten Knochenstücks sichtbar machen.
X-ray nanotomography aids the production of eco-friendly solar cells
Polymer solar cells are in the spotlight for sustainable energy production of the future. Characterization of these devices by X-ray nanotomography helps to improve their production using environmentally friendly materials.
2015 Otto Kratky award
Marianne Liebi was awarded the 2015 Otto Kratky award by the Helmholtz-Centre Berlin for excellence in the field of small-angle X-ray scattering (SAXS) analysis. The award was bestowed in the last SAS2015 conference in Berlin. Marianne is a postdoctoral fellow in the coherent X-ray scattering group (CXS) in PSI, carrying out research in scanning SAXS measurement and analysis in 2D and 3D. Image credit ©HZB/Michael Setzpfandt
Element-Specific X-Ray Phase Tomography of 3D Structures at the Nanoscale
Recent advances in fabrication techniques to create mesoscopic 3D structures have led to significant developments in a variety of fields including biology, photonics, and magnetism. Further progress in these areas benefits from their full quantitative and structural characterization.
Aus dem Innern einer Eierschale
Winzige Bläschen im Innern von Eierschalen liefern die Stoffe, die das Wachstum der Schale stimulieren und steuern. Mit einer neuartigen Tomografie-Technik haben Forschende des Paul Scherrer Instituts PSI, der ETH Zürich und des niederländischen AMOLF-Instituts diese Bläschen erstmals in 3D abbilden können. Sie heben damit eine alte Einschränkung tomografischer Bilder auf und hoffen, dass eines Tages auch die Medizin von ihrer Methode profitiert.
Multiresolution X-ray tomography, getting a clear view of the interior
Researchers at PSI have developed a technique that combines tomography measurements at different resolution levels to allow quantitative interpretation for nanoscale tomography on an interior region of interest of the sample. In collaboration with researchers of the institute AMOLF in the Netherlands and ETH Zurich in Switzerland they showcase their technique by studying the porous structure within a section of an avian eggshell. The detailed measurements of the interior of the sample allowed the researchers to quantify the ordering and distribution of an intricate network of pores within the shell.
Nanometer in 3-D
Forschende haben 3-D-Bilder winziger Objekte erzeugt und konnten dabei sogar 25 Nanometer grosse Details (1 Nanometer = 1 Millionstel eines Millimeters) sichtbar machen. Dabei haben sie nicht nur die Form der Untersuchungsgegenstände bestimmen können, sondern auch gezeigt, wie ein bestimmtes chemisches Element (Kobalt) darin verteilt ist und ob es in einer chemischen Verbindung oder in Reinform vorliegt.
Innovation Award on Synchrotron Radiation 2014 for high-resolution 3D hard X-ray microscopy
The 2014 Innovation Award on Synchrotron Radiation was bestowed to researchers Ana Diaz, Manuel Guizar-Sicairos, Mirko Holler, and Jörg Raabe from the Paul Scherrer Institut, Switzerland, for their contributions to method and instrumentation development, which have set new standards in high-resolution 3D hard X-ray microscopy.