Ultrafast infrared spectroscopy in photosynthesis

Year: 2015

Authors: Di Donato M., Groot M.L.

Autors Affiliation: LENS European Lab Non Linear Spect, I-50019 Sesto Fiorentino, FI, Italy; Univ Florence, Dipartimento Chim Ugo Schiff, I-50019 Sesto Fiorentino, FI, Italy; Ist Nazl Ottica, I-50125 Florence, Italy.

Abstract: In recent years visible pump/mid-infrared (IR) probe spectroscopy has established itself as a key technology to unravel structure-function relationships underlying the photo-dynamics of complex molecular systems. In this contribution we review the most important applications of mid-infrared absorption difference spectroscopy with sub-picosecond time-resolution to photosynthetic complexes. Considering several examples, such as energy transfer in photosynthetic antennas and electron transfer in reaction centers and even more intact structures, we show that the acquisition of ultrafast time resolved mid-IR spectra has led to new insights into the photodynamics of the considered systems and allows establishing a direct link between dynamics and structure, further strengthened by the possibility of investigating the protein response signal to the energy or electron transfer processes. This article is part of a Special Issue entitled: Vibrational spectroscopies and bioenergetic systems. (C) 2014 Elsevier B.V. All rights reserved.

Journal/Review: BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS

Volume: 1847 (1)      Pages from: 2  to: 11

KeyWords: Ultrafast infrared spectroscopy; Photosynthesis; Reaction center; Energy transfer; Electron transfer;
DOI: 10.1016/j.bbabio.2014.06.006

Citations: 20
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