Twinning at European XFEL: Advancing Materials Science through International Collaboration
From 26 to 29 June 2026, Hanna Vasylyeva, Associate Professor at Uzhhorod National University (Ukraine), participated in the NEPHEWS Twinning Programme at European XFEL. During her visit, she joined a user experiment hosted by Dr. Yoonhee Kim and Dr. Chan Kim, gaining first-hand experience of cutting-edge X-ray free-electron laser research and the operation of one of the world’s most advanced photon science facilities.
Hanna’s research focuses on advanced functional materials for environmental and materials science applications. Over the years, her work has evolved from developing adsorbent materials for the removal of heavy metals and radionuclides from water towards the design and characterization of nanostructured materials based on titanium dioxide, silicon dioxide and graphene oxide. Her research combines materials synthesis with advanced characterization techniques to better understand the relationship between surface chemistry and material performance.
Although conventional analytical methods provide valuable information, Hanna was motivated to join the Twinning Programme to explore how state-of-the-art photon science techniques can offer deeper insights into the structure and behaviour of advanced materials. Equally important was the opportunity to interact with researchers from different scientific disciplines and gain experience in the highly collaborative environment of an international user facility.
During her visit to European XFEL, Hanna participated in the full beamtime workflow, observing how complex experiments are prepared, coordinated and carried out. Beyond learning about advanced X-ray methodologies, she gained a broader understanding of the multidisciplinary research opportunities available at European XFEL across materials science, high-energy-density science, structural biology and ultrafast dynamics. She was particularly impressed by the professionalism, teamwork and scientific expertise demonstrated by the instrument scientists and user teams throughout the experiment.
Reflecting on the experience, Hanna said:
„The Twinning Programme introduced me to new experimental approaches that complement our existing research methods. Beyond the scientific knowledge, I was inspired by the collaborative atmosphere and the exceptional level of organisation at European XFEL. It has broadened my perspective on how advanced research infrastructures can support innovative materials science.”
Hanna believes that the knowledge gained during the visit will benefit both her own research and the wider scientific community at Uzhhorod National University. Besides identifying new possibilities for advanced materials characterization, she sees valuable examples of good laboratory practices, safety procedures and experimental organisation that could be transferred to her home institution. She also hopes to inspire physics and materials science students by introducing them to the research opportunities available at large-scale European research infrastructures such as European XFEL.
The NEPHEWS Twinning Programme continues to strengthen scientific collaboration by connecting researchers from widening countries with world-class research infrastructures. Through hands-on participation in beamtime experiments, the programme promotes knowledge exchange, fosters international partnerships and supports the development of the next generation of scientists working at the frontiers of photon science.
Author: European XFEL