Publication Spotlight

Highlighting the results of researchers using Dragonfly…

DRAGONFLY 30-DAY TRIAL

Below you will find a collection of publications that highlight how Dragonfly contributed to the success of diverse scientific investigations.

Contact Us if you would like your research to be featured in our spotlight series.

Dragonfly used to quantify porosity reduction in additive manufacturing using pulsed laser
This work involved the study of porosity in metal additive manufacturing and its potential reduction by adding an additional pulsed laser into the process. Porosity was quantified in high resolution X-ray microtomography images using Dragonfly and porosity reduction was investigated by changing the process parameters of the pulsed laser. In summary:
  • Pulsed laser addition to additive manufacturing process investigated.
  • MicroCT images acquired using a ZEISS Versa 520.
  • Dragonfly used for porosity quantification.
  • 90% porosity reduction achieved.

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Lithium ion battery study using Dragonfly
Lithium ion batteries were studied non-destructively using X-ray microscopy of the same cells before and after a full discharge. Despite X-ray imaging challenges, the transport of lithium was mapped to provide evidence of current constriction, a key parameter in lithium ion battery quality and its effective lifetime. In summary:
  • X-ray microscopy used to image entire lithium ion cells (anode, cathode, electrolyte and lithium).
  • Visualization of lithium was achieved in CT by enclosing Li with Cu plates.
  • Tomography performed with ZEISS Xradia Versa 520.
  • Dragonfly used for image analysis including registration and comparison of virgin and discharged states.
  • Information about current constriction in lithium ion cells is described.
  • Work published in MRS Communications.

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Diffraction contrast tomography for powder crystallographic characterization
In this work, the authors demonstrated the first diffraction contrast tomography of polycrystalline powders using a laboratory system. The method is useful for characterization of powders relevant to pharmaceutical production and fine chemicals industries and the work demonstrates the combined analysis of such powders using diffraction contrast and absorption contrast tomography. In summary:
  • X-ray microscopy combined with diffraction contrast tomography (DCT).
  • Tomography performed with ZEISS Xradia Versa 520 fitted with labDCT module.
  • Dragonfly used for image registration, segmentation, and visualization.
  • Work published in the Royal Society of Chemistry’s CrysEngComm.

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Correlative analytical and microscopic study of Icelandic soils
In this work, researchers used the Dragonfly software platform to study Icelandic soils using images and data acquired using a variety of hardware tools across multiple length scales. In summary:
  • Soil structure and chemistry studied using multiple microscopy and analytical tools.
  • Microscopy hardware included ZEISS Versa 520 XRM, Crossbeam FIB-SEM and Observer Z1M.
  • Dragonfly used for image registration, segmentation and visualization of data from all modalities.
  • Work published in Nature’s Scientific Reports.
  • Multi-scale structure of soils reported including channel thickness.

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Researchers investigate ancient shark egg cases
In this interesting study from the Swedish Museum of Natural History, ancient shark egg cases from the early Jurassic period were studied using X-ray microCT. The non-destructive imaging aspect was crucial to make this study possible as the fragile specimens were partially embedded in rock. Segmentation is usually quite challenging in this type of image data, but no problem for Dragonfly. In summary:
  • Ancient shark egg cases studied.
  • MicroCT images acquired using a ZEISS Versa 520 instrument.
  • Dragonfly used for segmentation and 3D visualization.

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Sheffield tomography facility publishes first paper
The newly established Sheffield Tomography Centre (STC) at the University of Sheffield recently published their first paper from data generated at the facility. This paper involves an investigation of cutting damage in carbon fibre reinforced composites; Dragonfly was used for visualization and evaluation of this damage.
  • Research published in Elsevier’s Composites Part A.
  • Carbon fibre reinforced polymers (CFRPs) with the epoxy matrix modified by addition of particle reinforcements.
  • Damage induced when cutting investigated by microscopy and tomography.
  • ZEISS Versa 620 X-ray microscope used in the study.
  • Sheffield Tomography Centre’s first publication.

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X-ray microscopy for plants across multiple resolution scales
The capabilities of X-ray microscopy for plant sciences are highlighted in the recent paper entitled “X-ray microscopy enables multiscale high-resolution 3D imaging of plant cells, tissues, and organs”.

Summary of this spotlight:
  • Overview for sample preparation and imaging workflows described for XRM in plant sciences.
  • Dragonfly used for image registration, segmentation, and visualization.
  • Work published in the journal Plant Physiology.

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Additively manufactured lattice structure surface morphology evaluation
In this study, researchers used Dragonfly software to study the surface morphology of single lattice struts built by additive manufacturing in stainless steel (metal 3D printing). The summary of the work…
  • Single struts of 316L stainless steel evaluated.
  • ZEISS Versa 520 X-ray microscopy used to acquire images.
  • Image analysis and visualization performed in Dragonfly.
  • Simplified models reconstructed for simulation and correlation to mechanical properties.
  • Work published in Materials Science and Engineering: A.

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Earliest Bryozoa Fossil
Nature paper: Dragonfly used to unveil the earliest Bryozoa fossil
In this spotlight, researchers used Dragonfly in work reported in the journal Nature. In this noteworthy scientific discovery…
  • Byrozoa fossils were investigated.
  • Both scanning electron microscopy and microtomography used.
  • SEM using ZEISS Supra 35 VP field emission at Uppsala University, FEI Quanta 450-FEGSEM at Northwest University and JEOL JSM 7100F-FESEM at Macquarie University.
  • Microtomography using a ZEISS Xradia MicroXCT-400 system.
  • Dragonfly used for image processing, segmentation and visualization.

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Two heads are not always better than one - two-faced and double-headed sea turtle morphology evaluation
Researchers from the Florida Atlantic University recently published an interesting study of the malformation of sea turtle embryos and hatchlings found on south Florida beaches. As described in the Journal of Anatomy publication…
  • Microtomography was performed on a series of two-headed turtles using a Bruker Skyscan 1173 X-ray microCT instrument.
  • Dimensional measurements and 3D visualizations were done with Dragonfly.
  • Carapace length and other morphological features were also measured.

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