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  • grazing-incidence small-angle X-ray scatteringGISAXSbeam footprintlithographic inspectiongratings  (2)
  • in-cell NMRnuclear magnetic resonancecellular structural biologycellular environmentprotein interactions  (2)
  • EIGERhybrid pixel detectorselectron crystallographySAPO-34  (1)
  • International Union of Crystallography (IUCr)  (5)
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Verlag/Herausgeber
  • International Union of Crystallography (IUCr)  (5)
Erscheinungszeitraum
  • 1
    Publikationsdatum: 2018-06-26
    Beschreibung: An error in the paper by Pflüger, Soltwisch, Probst, Scholze & Krumrey [IUCrJ (2017), 431–438] is corrected.
    Schlagwort(e): grazing-incidence small-angle X-ray scatteringGISAXSbeam footprintlithographic inspectiongratings
    Digitale ISSN: 2052-2525
    Thema: Geologie und Paläontologie , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Publikationsdatum: 2017-05-25
    Beschreibung: Grazing-incidence small-angle X-ray scattering (GISAXS) is often used as a versatile tool for the contactless and destruction-free investigation of nanostructured surfaces. However, due to the shallow incidence angles, the footprint of the X-ray beam is significantly elongated, limiting GISAXS to samples with typical target lengths of several millimetres. For many potential applications, the production of large target areas is impractical, and the targets are surrounded by structured areas. Because the beam footprint is larger than the targets, the surrounding structures contribute parasitic scattering, burying the target signal. In this paper, GISAXS measurements of isolated as well as surrounded grating targets in Si substrates with line lengths from 50 µm down to 4 µm are presented. For the isolated grating targets, the changes in the scattering patterns due to the reduced target length are explained. For the surrounded grating targets, the scattering signal of a 15 µm × 15 µm target grating structure is separated from the scattering signal of 100 µm × 100 µm nanostructured surroundings by producing the target with a different orientation with respect to the predominant direction of the surrounding structures. As virtually all lithographically produced nanostructures have a predominant direction, the described technique allows GISAXS to be applied in a range of applications, e.g. for characterization of metrology fields in the semiconductor industry, where up to now it has been considered impossible to use this method due to the large beam footprint.
    Schlagwort(e): grazing-incidence small-angle X-ray scatteringGISAXSbeam footprintlithographic inspectiongratings
    Digitale ISSN: 2052-2525
    Thema: Geologie und Paläontologie , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    Publikationsdatum: 2018-02-15
    Beschreibung: Electron crystallography is a discipline that currently attracts much attention as method for inorganic, organic and macromolecular structure solution. EIGER, a direct-detection hybrid pixel detector developed at the Paul Scherrer Institut, Switzerland, has been tested for electron diffraction in a transmission electron microscope. EIGER features a pixel pitch of 75 × 75 µm2, frame rates up to 23 kHz and a dead time between frames as low as 3 µs. Cluster size and modulation transfer functions of the detector at 100, 200 and 300 keV electron energies are reported and the data quality is demonstrated by structure determination of a SAPO-34 zeotype from electron diffraction data.
    Schlagwort(e): EIGERhybrid pixel detectorselectron crystallographySAPO-34
    Digitale ISSN: 2052-2525
    Thema: Geologie und Paläontologie , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 4
    facet.materialart.
    Unbekannt
    International Union of Crystallography (IUCr)
    In: IUCrJ
    Publikationsdatum: 2017-02-15
    Beschreibung: Classical structural biology approaches allow structural characterization of biological macromolecules in vitro, far from their physiological context. Nowadays, thanks to the wealth of structural data available and to technological and methodological advances, the interest of the research community is gradually shifting from pure structural determination towards the study of functional aspects of biomolecules. Therefore, a cellular structural approach is ideally needed to characterize biological molecules, such as proteins, in their native cellular environment and the functional processes that they are involved in. In-cell NMR is a new application of high-resolution nuclear magnetic resonance spectroscopy that allows structural and dynamical features of proteins and other macromolecules to be analyzed directly in living cells. Owing to its challenging nature, this methodology has shown slow, but steady, development over the past 15 years. To date, several in-cell NMR approaches have been successfully applied to both bacterial and eukaryotic cells, including several human cell lines, and important structural and functional aspects have been elucidated. In this topical review, the major advances of in-cell NMR are summarized, with a special focus on recent developments in eukaryotic and mammalian cells.
    Schlagwort(e): in-cell NMRnuclear magnetic resonancecellular structural biologycellular environmentprotein interactions
    Digitale ISSN: 2052-2525
    Thema: Geologie und Paläontologie , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 5
    facet.materialart.
    Unbekannt
    International Union of Crystallography (IUCr)
    In: IUCrJ
    Publikationsdatum: 2017-02-24
    Schlagwort(e): in-cell NMRnuclear magnetic resonancecellular structural biologycellular environmentprotein interactions
    Digitale ISSN: 2052-2525
    Thema: Geologie und Paläontologie , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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