Research Projects



Structural evolution and alignment of liquid crystals in flow
This project aims to study the anisotropy and self-assembled structure of lyotropic liquid crystals during flow. Using scanning SAXS in combination with birefringence imaging and rheology, we can visualise the anisotropy induced in liquid crystals. This work can be applied to the production of hierarchical structures via 3D printing or by the use of microfluidic channels.


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Structuring of fibrillar systems under flow studied with SAXS
Controlled alignment of anisotropic materials, for example cellulose nanofibrils is of high interest, since their mechanical properties are highly dependent on the orientation. The fluidic four-roll mill (FFoRM) device provides an easy way to study any arbitrary 2D flow by small angle X-ray scattering (SAXS) or birefringence imaging. Knowledge gained on flow behaviour can then be used for process development. The project is related to the development of the ForMAX beamline at MAX IV, which will be a combined SAXS and imaging beamline, in particular aimed at the Swedish forest industry.​​
Barbara Berke​​                                                     






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SAXS imaging of newly formed bone in large defects
The goal of this project is to analyse the quality of newly formed bone in large bone defects by SAXS imaging. In collaboration with Universitätsspital Zürich and ETH Zürich (Switzerland), we studied the regenerated bone in prealigned grafts implanted in vivo. We can visualise the anisotropy and orientation of the collagen fibrils and mineral nanoplatelets in the bone using scanning SAXS (2D) and SAXS tensor tomography (3D).



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Development of methods and theory for tensor tomographic reconstruction
The computation of tensor tomographic reconstructions is a problem that involves large datasets and a large number of computations. The development of improved algorithms and more optimized code is therefore an important aspect of this research. In addition, an improved understanding of the theory and mat​hematics behind tensor tomography is necessary for more efficient experiments, as well as for developing reconstruction methods further and generalizing methods from small-angle X-ray scattering to e.g. systems involving visible light.


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SAXS Tensor Tomography Workshop
Periodicly, a SAXS Tensor Tomography Workshop is organised. The first edition was held at the Department of Physics on February 2020 with participants from Chalmers, Lund University, University of Surrey and NTNU Norway. This first eddition was focused on experimental set-up and practicalities during the experiment, real problem solving during data analisys and data visualisation. 

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