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Neutron Scattering Research Group

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Why Neutron Scattering is Important?

Neutron scattering is a unique tool that allows scientists to probe the inner workings of materials and understand how they behave on a molecular level. It’s particularly useful for studying materials that are difficult to analyze using other techniques, such as liquids, glasses and polymers. Some key benefits of neutron scattering include:

  • High sensitivity to light elements such as hydrogen and lithium.
  • Ability to study materials in their natural state, without the need for chemical modification.
  • Highly accurate measurements of atomic and molecular structures.
  • Ability to explore dynamic processes such as diffusion and phase transitions.

Exploring the Universe at the Nanoscale through Neutron Scattering and Molecular Dynamics

The workgroup is using different neutron scattering methods like small angle scattering, neutron spectroscopy and neutron diffraction in combination with structural modeling and molecular dynamics simulations to study the structure and dynamics of biomolecules and membranes, mainly in the field of photosynthesis research. We are leading the development of time-resolved neutron scattering methods and techniques with in-situ illumination of materials.

In addition, we investigate other types of solid matter including different smart materials like UV-curable polymers, dental materials, food and milk proteins.

The group’s research spans photosynthesis, biomolecular systems and advanced materials, including smart polymers, dental materials and food proteins.

Main Research Directions

  1. Investigations of photoswitchable proteins and membranes like the orange carotenoid protein (OCP) are carried out aiming at the determination of the active state structures and their molecular flexibility.
  2. Solution structures of native photosystems PSI and PSII are explored using small angle scattering under nearly physiological conditions as employed for functional studies and biotechnological applications. The method is also used to improve the conditions of detergent-solubilization and crystal formation to obtain high-resolution structures.
  3. Photosynthetic light-harvesting complexes are studied by neutron spectroscopy to achieve a better understanding of the capture of solar energy under physiological conditions.

Experimental setup for photoswitchable organism studies. (Image credit: Jörg Pieper/University of Tartu)

The workgroup also develops infrastructure for the European Spallation Source (ESS) as part of the Estonian in-kind contributions (see www.ess.eu). This concerns mainly the development of pump-probe experiments with optical activation of biological processes and subsequent time-resolved test of the related protein structure and dynamics. For more updates, keep an eye on our news page!

Take a Look at Our Activities

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Watch Our TR-QENS Experiment at ILL Grenoble

Time-resolved quasielastic neutron scattering (TR-QENS) was used to investigate light-induced molecular dynamics in the photosynthetic protein bacteriorhodopsin by the IN5 spectrometer in the Institut Laue-Langevin (ILL), Grenoble.

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Our Work Covered in the Science in School x ILL Popular Science Series

Our research on the structures of photosynthetic protein complexes was featured in the Science in School x ILL popular science series. Science in School is an educational journal published by EIROforum, a collaboration of eight Europe’s leading intergovernmental research organizations: …

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Estonia Becomes the First Country to Deliver Its In-Kind Contribution to the European Spallation Source

The European Spallation Source (ESS) in Lund, Sweden, is a next-generation neutron scattering facility being built jointly by 13 European countries, with the goal of creating the world’s most powerful accelerator-based neutron source. Under the leadership of the University of …

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If you’re interested in neutron scattering, there’s no better way to learn than by working with top experts in the field. Our research group offers hands-on experience with state-of-the-art equipment and techniques, as well as the opportunity to collaborate with leading scientists around the world.

Whether you’re a student just starting out or an experienced researcher looking to expand your skills, neutron scattering has something to offer. Join us and uncover the mysteries of the universe at the nanoscale!

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