Journal Article PHPPUBDB-16205

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Single mimivirus particles intercepted and imaged with an x-ray laser

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2011
Nature Publising Group London [u.a.]

Nature <London> 470, 78-81 () [10.1038/nature09748]
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Abstract: X-ray lasers offer new capabilities in understanding the structure of biological systems, complex materials and matter under extreme conditions. Very short and extremely bright, coherent X-ray pulses can be used to outrun key damage processes and obtain a single diffraction pattern from a large macromolecule, a virus or a cell before the sample explodes and turns into plasma. The continuous diffraction pattern of non-crystalline objects permits oversampling and direct phase retrieval. Here we show that high-quality diffraction data can be obtained with a single X-ray pulse from a non-crystalline biological sample, a single mimivirus particle, which was injected into the pulsed beam of a hard-X-ray free-electron laser, the Linac Coherent Light Source. Calculations indicate that the energy deposited into the virus by the pulse heated the particle to over 100,000 K after the pulse had left the sample. The reconstructed exit wavefront (image) yielded 32-nm full-period resolution in a single exposure and showed no measurable damage. The reconstruction indicates inhomogeneous arrangement of dense material inside the virion. We expect that significantly higher resolutions will be achieved in such experiments with shorter and brighter photon pulses focused to a smaller area. The resolution in such experiments can be further extended for samples available in multiple identical copies.

Keyword(s): Electrons (MeSH) ; Hot Temperature (MeSH) ; Lasers (MeSH) ; Mimiviridae: chemistry (MeSH) ; Photons (MeSH) ; Time Factors (MeSH) ; X-Ray Diffraction: instrumentation (MeSH) ; X-Ray Diffraction: methods (MeSH) ; X-Rays (MeSH)

Classification:

Contributing Institute(s):
  1. Experiments with synchrotron radiation (HASYLAB(-2012))
  2. CFEL-Coherent X-Ray Imaging (FS-CFEL-1)
  3. Max-Planck-Gesellschaft (MPG)
  4. Forschungsgruppe für strukturelle Dynamik (MPSD)
  5. European XFEL (Eur.XFEL)
Research Program(s):
  1. Experiments at CFEL (POF2-544) (POF2-544)
Experiment(s):
  1. Experiments at CFEL

Appears in the scientific report 2011
Database coverage:
Medline ; OpenAccess ; JCR ; No Author Disambiguation ; Thomson Reuters Master Journal List ; Web of Science Core Collection
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The record appears in these collections:
Private Collections > >DESY > >FS > HASYLAB(-2012)
Private Collections > >DESY > >FS > FS-CFEL-1
Private Collections > >XFEL.EU > Eur.XFEL
Document types > Articles > Journal Article
Private Collections > >MPG > MPSD
Private Collections > >MPG > MPG
Public records
Publications database
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 Record created 2012-09-19, last modified 2025-07-30


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