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Programming Light-Harvesting Efficiency Using DNA Origami

The remarkable performance and quantum efficiency of biological light-harvesting complexes has prompted a multidisciplinary interest in engineering biologically inspired antenna systems as a possible route to novel solar cell technologies. Key to the effectiveness of biological “nanomachines” in lig...

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Published in:	Nano letters 2016-04, Vol.16 (4), p.2369-2374
Main Authors:	Hemmig, Elisa A, Creatore, Celestino, Wünsch, Bettina, Hecker, Lisa, Mair, Philip, Parker, M. Andy, Emmott, Stephen, Tinnefeld, Philip, Keyser, Ulrich F, Chin, Alex W
Format:	Article
Language:	English
Subjects:	Antennas Biological Carbocyanines - chemistry Deoxyribonucleic acid DNA - chemistry Fluorescence Letter Light Nanostructure Organizing Photochemical Processes Platforms Spectrometry, Fluorescence Spectroscopy
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creator	Hemmig, Elisa A Creatore, Celestino Wünsch, Bettina Hecker, Lisa Mair, Philip Parker, M. Andy Emmott, Stephen Tinnefeld, Philip Keyser, Ulrich F Chin, Alex W
description	The remarkable performance and quantum efficiency of biological light-harvesting complexes has prompted a multidisciplinary interest in engineering biologically inspired antenna systems as a possible route to novel solar cell technologies. Key to the effectiveness of biological “nanomachines” in light capture and energy transport is their highly ordered nanoscale architecture of photoactive molecules. Recently, DNA origami has emerged as a powerful tool for organizing multiple chromophores with base-pair accuracy and full geometric freedom. Here, we present a programmable antenna array on a DNA origami platform that enables the implementation of rationally designed antenna structures. We systematically analyze the light-harvesting efficiency with respect to number of donors and interdye distances of a ring-like antenna using ensemble and single-molecule fluorescence spectroscopy and detailed Förster modeling. This comprehensive study demonstrates exquisite and reliable structural control over multichromophoric geometries and points to DNA origami as highly versatile platform for testing design concepts in artificial light-harvesting networks.
doi_str_mv	10.1021/acs.nanolett.5b05139
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source	American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list)
subjects	Antennas Biological Carbocyanines - chemistry Deoxyribonucleic acid DNA - chemistry Fluorescence Letter Light Nanostructure Organizing Photochemical Processes Platforms Spectrometry, Fluorescence Spectroscopy
title	Programming Light-Harvesting Efficiency Using DNA Origami
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