Feb. 12, 2015
An international team led by Uppsala University and including scientists from DESY and the European XFEL has for the first time successfully imaged whole living bacterial cells with an X-ray laser. The method used in this experiment can produce results that are of higher spatial and temporal resolution than even the best optical microscopy techniques, with the added possibility of creating detailed 3D models of the cells. "When you really want to understand the details of a cell's functions, you need it alive", says Uppsala University Professor Janos Hajdu, one of the lead researchers in the experiment and an advisor to European XFEL. The technique, as described in the journal Nature Communications, allows scientists a clearer view into the complicated world of the cell.
moreDec. 24, 2014
The United Kingdom will become the 12th member state of European XFEL, an international research facility that is currently under construction in the Hamburg area and will start user operation in 2017. The UK Minister for Universities and Science Greg Clark and the Science and Technology Facilities Council (STFC) announced that the United Kingdom will invest up to 30 M£ (about 38 M€) to become a full member. The European XFEL will produce extremely bright X-ray flashes that will allow scientists to investigate nanometre-scale structures, fast processes, and extreme states; take three-dimensional pictures of viruses and proteins; and film chemical reactions.
moreDec. 12, 2014
Chemistry happens all around us. A chemical reaction is a rearrangement of atoms in and between molecules, the breaking of old and the formation of new bonds. The glue that binds atoms in molecules and creates the bonds between them is made out of valence electrons.
moreNov. 20, 2014
An international team of scientists led by Uppsala University has developed a high-throughput method of imaging biological particles using an X-ray laser. Images obtained with this method show projections of the carboxysome particle, a delicate and tiny cell organelle of photosynthetic bacteria. Results have been published in in Nature Photonics.
moreNov. 13, 2014
Researchers have taken an important step towards developing a new X-ray lens made of diamond. A team of scientists from the Technische Universität (TU) Dresden and Technische Universität Chemnitz as well as from DESY have successfully tested a new lens design. The group working with DESY Leading Scientist, Professor Christian Schroer, presents the results in the scientific journal Applied Physics Letters.
moreSep. 25, 2014
The sharp X-ray vision of DESY´s research light source PETRA III paves the way for a new technique to produce cheap, flexible and versatile double solar cells. The method developed by scientists from the Technical University of Denmark (DTU) in Roskilde can reliably produce efficient tandem plastic solar cells of many metres in length, as a team around senior researcher Jens W. Andreasen reports in the journal Advanced Energy Materials.
moreSep. 22, 2014
Reaearchers from Göttingen in collaboration with colleagues from Augsburg have 'filmed' the movement of lipid molecules using an X-ray stroboscope at DESY. In the scientific journal Physical Review Letters, researchers lead by Professor Tim Salditt of the University of Göttingen report that their study offers new insights into the dynamics of biomolecules, which compose materials such as cell membranes. The cell membranes consist of a double layer of lipid molecules; the properties of the membranes are of great interest because they control which substances enter and exit a biological cell and also determine which materials are exchanged between different cell regions.
moreJul. 07, 2014
Macromolecular complexes composed of self-assembling proteins and nucleic acids hold promise for a wide range of applications, including drug delivery, sensing and molecular electronics. Scientists have developed a broad array of x-ray scattering techniques for characterizing the shape and surface morphology of these complexes, but probing their internal structure remains a challenge. Changyong Song and colleagues from the RIKEN SPring-8 Center and RIKEN Advanced Institute for Computational Science have now devised a structural analysis scheme based on complementary advanced x-ray techniques that has allowed them to peer inside an RNA macromolecular complex for the first time. Results were published in Nature Communications.
moreJun. 23, 2014
Physicists at HZB have developed a process to generate improved lenses for X-ray microscopy that provide both better resolution and higher throughput. To accomplish this, they fabricate three-dimensional X-ray optics for volume diffraction that consist of on-chip stacked Fresnel zone plates. These three-dimensional nanostructures focus the incident X-rays much more efficiently and enable improved spatial resolution below ten nanometres. Results have been published in the journal Nano Research.
moreJun. 18, 2014
Progress in the field of nanotechnology can only be achieved, if analytical methods for the characterization of nanostructures continuously improve. Due to the structure's small size visible light cannot be utilized for nanoanalytical techniques. In point of fact, microscopic methods with electron waves or X-rays must be applied here, as the wavelengths, they work with, are small enough. Multilayer Laue lenses (MLL) offer a most promising approach to developing highest resolution X-ray optics.