Programming light-harvesting efficiency using DNA origami
Hemmig, Elisa A
American Chemical Society
MetadataShow full item record
Hemmig, E. A., Creatore, C., Wünsch, B., Hecker, L., Mair, P., Parker, A., Emmott, S., et al. (2016). Programming light-harvesting efficiency using DNA origami. Nano Letters, 16 2369-2374. https://doi.org/10.1021/acs.nanolett.5b05139
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 photo-active molecules. Recently, DNA origami has emerged as a powerful tool for organising multiple chromophores with base-pair accuracy and full geometric freedom. Here, we present a programmable antenna array on a DNA origami platform which enables the implementation of rationally designed antenna structures. We systematically analyse the light-harvesting efficiency with respect to number of donors and inter-dye distances of a ring-like antenna using ensemble and single-molecule fluorescence spectroscopy and detailed Förster modelling. 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.
DNA nanotechnology, DNA origami, artificial light-harvesting, Förster resonance energy transfer, fluorescence spectroscopy
A. W. C. acknowledges support from the Winton Programme for the Physics of Sustainability. U. F. K. was partly supported by an ERC starting grant (PassMembrane, EY 261101). E. A.H. acknowledges support from Janggen-Pöhn Stiftung and the Schweizerischer Nationalfonds (SNF). P. T. acknowledges support by a starting grant (SiMBA, EU 261162) of the European Research Council (ERC). B. W. gratefully acknowledges support by the Braunschweig International Graduate School of Metrology B-IGSM and the DFG Research Training Group GrK1952/1 ‘Metrology for Complex Nanosystems’. P. M. thankfully acknowledges the support of the EPSRC Centre for Doctoral Training in Sensor Technologies and Applications EP/L015889/1.
European Research Council (261101)
Embargo Lift Date
External DOI: https://doi.org/10.1021/acs.nanolett.5b05139
This record's URL: https://www.repository.cam.ac.uk/handle/1810/254045