Alexander Ruban

Prof Alexander Ruban is a Professor in Biophysics at Queen Mary University of London (QMUL), affiliated with the School of Biological and Behavioural Sciences. He leads research in the Centre for Molecular Cell Biology and the Centre for Biodiversity and Sustainability. His work focuses on photosynthesis mechanisms, light harvesting, chloroplast adaptation, and photoprotection. Ruban's research employs advanced spectroscopic and biochemical techniques to explore how plants regulate energy distribution under varying light conditions. He has contributed extensively to understanding the structural and functional dynamics of light-harvesting complexes and their role in non-photochemical quenching (NPQ).

Key interests include the molecular basis of photoprotection, carotenoid function, and the interplay between membrane lipid composition and photosynthetic efficiency. His studies often involve interdisciplinary approaches, combining biophysics, biochemistry, and genetics to address fundamental questions in plant biology. Ruban has published over 200 peer-reviewed articles, with recent work highlighting novel insights into PsbS protein functionality, lipid-protein interactions in thylakoid membranes, and the impact of environmental stress on photosynthetic systems.

Notable contributions include identifying mechanisms behind NPQ activation, characterizing the role of hydrophobic mismatch in energy dissipation, and elucidating the structural basis of light-harvesting antenna reorganization. Ruban collaborates globally, contributing to international initiatives in plant bioenergy and sustainability. His research group actively investigates applications of photosynthetic systems in biotechnology and climate resilience.