Now showing 1 - 3 of 3
  • 2014Journal Article Research Paper
    [["dc.bibliographiccitation.artnumber","088102"],["dc.bibliographiccitation.firstpage","3"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Physical Review Letters"],["dc.bibliographiccitation.lastpage","7"],["dc.bibliographiccitation.volume","112"],["dc.contributor.author","Weinhausen, Britta"],["dc.contributor.author","Saldanha, Oliva"],["dc.contributor.author","Wilke, Robin N."],["dc.contributor.author","Dammann, Christian"],["dc.contributor.author","Priebe, Marius"],["dc.contributor.author","Burghammer, Manfred"],["dc.contributor.author","Sprung, Michael"],["dc.contributor.author","Köster, Sarah"],["dc.date.accessioned","2017-09-07T11:46:29Z"],["dc.date.available","2017-09-07T11:46:29Z"],["dc.date.issued","2014"],["dc.description.abstract","High-resolution x-ray imaging techniques offer a variety of possibilities for studying the nanoscale structure of biological cells. A challenging task remains the study of cells by x rays in their natural, aqueous environment. Here, we overcome this limitation by presenting scanning x-ray diffraction measurements with beam sizes in the range of a few hundred nm on living and fixed-hydrated eukaryotic cells in microfluidic devices which mimic a native environment. The direct comparison between fixed-hydrated and living cells shows distinct differences in the scattering signal, pointing to structural changes on the order of 30 to 50 nm."],["dc.identifier.doi","10.1103/PhysRevLett.112.088102"],["dc.identifier.gro","3142182"],["dc.identifier.isi","000331957600012"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5443"],["dc.language.iso","en"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation.eissn","1079-7114"],["dc.relation.issn","0031-9007"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Köster (Cellular Biophysics)"],["dc.subject.gro","x-ray imaging"],["dc.subject.gro","x-ray scattering"],["dc.subject.gro","cellular biophysics"],["dc.subject.gro","microfluidics"],["dc.title","Scanning X-Ray Nanodiffraction on Living Eukaryotic Cells in Microfluidic Environments"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2012Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","85"],["dc.bibliographiccitation.journal","Journal of Applied Crystallography"],["dc.bibliographiccitation.lastpage","92"],["dc.bibliographiccitation.volume","45"],["dc.contributor.author","Krywka, Christina"],["dc.contributor.author","Neubauer, Henrike"],["dc.contributor.author","Priebe, Marius"],["dc.contributor.author","Salditt, Tim"],["dc.contributor.author","Keckes, Jozef"],["dc.contributor.author","Buffet, Adeline"],["dc.contributor.author","Roth, Stephan Volkher"],["dc.contributor.author","Doehrmann, Ralph"],["dc.contributor.author","Mueller, Martin"],["dc.date.accessioned","2017-09-07T11:49:00Z"],["dc.date.available","2017-09-07T11:49:00Z"],["dc.date.issued","2012"],["dc.description.abstract","The micro- and nanofocus X-ray scattering (MINAXS) beamline of PETRA III is equipped with two consecutively arranged endstations, the last of which is the nanofocus endstation. The first in-beam commissioning of the experimental equipment was successfully performed at the end of 2010, using two-dimensionally confining hard X-ray silicon waveguides with cross sections of 50 nm x 50 mu m to 50 nm x 2 mu m for nanobeam generation. A full characterization of the waveguide-generated beams was performed, giving values for the beam geometries, the transmission efficiencies of the waveguides and absolute fluxes. Along with these results a detailed description of the setup is presented in this paper. A first high-resolution nanodiffraction experiment on a nanocrystalline TiN hard coating was performed to verify the resolution of the nanodiffraction setup and to reveal the local gradients across the blasted TiN coating. In conclusion, the main concern is the availability of the nanobeam, how it was generated and the fact that a beam out of a two-dimensionally confining waveguide was used for diffraction experiments for the first time."],["dc.identifier.doi","10.1107/S0021889811049132"],["dc.identifier.gro","3142584"],["dc.identifier.isi","000299206400010"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/8951"],["dc.language.iso","en"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation.issn","0021-8898"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.subject.gro","x-ray optics"],["dc.subject.gro","x-ray scattering"],["dc.title","A two-dimensional waveguide beam for X-ray nanodiffraction"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2015Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","867"],["dc.bibliographiccitation.journal","Journal of Synchrotron Radiation"],["dc.bibliographiccitation.lastpage","878"],["dc.bibliographiccitation.volume","22"],["dc.contributor.author","Salditt, Tim"],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Krenkel, Martin"],["dc.contributor.author","Wilke, Robin N."],["dc.contributor.author","Priebe, Marius"],["dc.contributor.author","Bartels, Matthias"],["dc.contributor.author","Kalbfleisch, Sebastian"],["dc.contributor.author","Sprung, Michael"],["dc.date.accessioned","2017-09-07T11:43:44Z"],["dc.date.available","2017-09-07T11:43:44Z"],["dc.date.issued","2015"],["dc.description.abstract","A compound optical system for coherent focusing and imaging at the nanoscale is reported, realised by high-gain fixed-curvature elliptical mirrors in combination with X-ray waveguide optics or different cleaning apertures. The key optical concepts are illustrated, as implemented at the Gottingen Instrument for Nano-Imaging with X-rays (GINIX), installed at the P10 coherence beamline of the PETRA III storage ring at DESY, Hamburg, and examples for typical applications in biological imaging are given. Characteristic beam configurations with the recently achieved values are also described, meeting the different requirements of the applications, such as spot size, coherence or bandwidth. The emphasis of this work is on the different beam shaping, filtering and characterization methods."],["dc.identifier.doi","10.1107/S1600577515007742"],["dc.identifier.gro","3141875"],["dc.identifier.isi","000357407900001"],["dc.identifier.pmid","26134789"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/2045"],["dc.language.iso","en"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation","SFB 755: Nanoscale Photonic Imaging"],["dc.relation.eissn","1600-5775"],["dc.relation.issn","0909-0495"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.subject.gro","x-ray optics"],["dc.subject.gro","x-ray imaging"],["dc.subject.gro","x-ray scattering"],["dc.title","Compound focusing mirror and X-ray waveguide optics for coherent imaging and nano-diffraction"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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