What is it about?
Plants transport energy efficiently for photosynthesis. We investigated for the first time how far energy can travel in a photosynthetic system, photosystem II of spinach, by studying interactions between excitons. Our combined experimental and theoretical approach can be extended to explore photosynthesis in larger, more complex biological systems.
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Why is it important?
Our study reveals how plant structures control energy flow, balancing photosynthesis efficiency with photoprotection. It also provides key guidelines and assumptions for analyzing energy transport in photosynthetic systems through exciton interactions.
Perspectives
It is amazing that we can extract nanoscale information from such a complicated biological system. This work builds on decades of research into the quantum dynamics of energy transfer and the development of ultrafast spectroscopy.
Kunyan Zhang
Read the Original
This page is a summary of: Probing exciton diffusion dynamics in photosynthetic supercomplexes via exciton–exciton annihilation, The Journal of Chemical Physics, April 2025, American Institute of Physics,
DOI: 10.1063/5.0251771.
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