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X-ray Crystallography02:18

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On-Chip Crystallization and Large-Scale Serial Diffraction at Room Temperature
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A user-friendly goniometer-compatible fixed-target platform for macromolecular crystallography at synchrotrons.

Swagatha Ghosh1,2, Analia Banacore1, Per Norder1

  • 1Department of Chemistry and Molecular Biology Gothenburg University Sweden.

Journal of Applied Crystallography
|April 10, 2026
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Summary
This summary is machine-generated.

Researchers developed a 3D-printed platform for serial X-ray crystallography. This user-friendly device supports microcrystals on X-ray-transparent membranes, minimizing background scatter for structural biology.

Keywords:
fixed-target chipsin situ crystallizationmacromolecular crystallographyroom-temperature protein structuresserial synchrotron X-ray crystallography

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Area of Science:

  • Structural Biology
  • Biophysics
  • Crystallography

Background:

  • Serial X-ray crystallography requires robust sample supports for microcrystals.
  • Existing methods can introduce high background scattering or involve complex sample handling.
  • Efficient mounting and transportation of samples to synchrotron sources are crucial.

Purpose of the Study:

  • To present a novel, user-friendly 3D-printed fixed-target platform for serial X-ray crystallography.
  • To enable low-background, high-throughput microcrystal analysis.
  • To demonstrate the platform's versatility across various crystallization and data collection strategies.

Main Methods:

  • 3D printing of a support platform with a 96-well frame.
  • Sandwiching microcrystals between thin, X-ray-transparent membranes.
  • Magnetic mounting onto standard macromolecular crystallography goniometers.
  • Facilitating on-chip hanging-drop experiments and sample transportation in cassettes.

Main Results:

  • Achieved very low scattering background due to the membrane design.
  • Demonstrated compatibility with standard beamline equipment.
  • Successfully solved five structures using diverse crystallization and data collection methods.
  • Showcased room-temperature and cryogenic serial data collection, including for membrane proteins.

Conclusions:

  • The 3D-printed platform offers a simple, versatile, and low-background solution for serial X-ray crystallography.
  • It streamlines sample preparation, mounting, and transportation, enhancing experimental efficiency.
  • The platform supports various applications, from single-crystal rotation to microcrystal serial data collection at different temperatures.