Design principles of natural light-harvesting as revealed by single molecule spectroscopy

T.P.J. Kruger, R. van Grondelle

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Biology offers a boundless source of adaptation, innovation, and inspiration. A wide range of photosynthetic organisms exist that are capable of harvesting solar light in an exceptionally efficient way, using abundant and low-cost materials. These natural light-harvesting complexes consist of proteins that strongly bind a high density of chromophores to capture solar photons and rapidly transfer the excitation energy to the photochemical reaction centre. The amount of harvested light is also delicately tuned to the level of solar radiation to maintain a constant energy throughput at the reaction centre and avoid the accumulation of the products of charge separation. In this Review, recent developments in the understanding of light-harvesting by plants will be discussed, based on results obtained from single molecule spectroscopy studies. Three design principles of the main light-harvesting antenna of plants will be highlighted: (a) fine, photoactive control over the intrinsic protein disorder to efficiently use intrinsically available thermal energy dissipation mechanisms; (b) the design of the protein microenvironment of a low-energy chromophore dimer to control the amount of shade absorption; (c) the design of the exciton manifold to ensure efficient funneling of the harvested light to the terminal emitter cluster.
Original languageEnglish
Pages (from-to)7-13
JournalPhysica B. Condensed Matter
Volume480
DOIs
Publication statusPublished - 2016

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Spectroscopy
Molecules
spectroscopy
molecules
Chromophores
proteins
Proteins
Light-Harvesting Protein Complexes
chromophores
Excitation energy
Photochemical reactions
shades
inspiration
Solar radiation
Thermal energy
Dimers
polarization (charge separation)
solar radiation
Energy dissipation
biology

Cite this

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Design principles of natural light-harvesting as revealed by single molecule spectroscopy. / Kruger, T.P.J.; van Grondelle, R.

In: Physica B. Condensed Matter, Vol. 480, 2016, p. 7-13.

Research output: Contribution to JournalArticleAcademicpeer-review

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