Strong Plasmonic Enhancement of a Single Peridinin–Chlorophyll a–Protein Complex on DNA Origami-Based Optical Antennas

Strong Plasmonic Enhancement of a Single Peridinin–Chlorophyll a–Protein Complex on DNA Origami-Based Optical Antennas

In this contribution, we fabricate hybrid constructs based on a natural light-harvesting complex, peridinin–chlorophyll a–protein, coupled to dimer optical antennas self-assembled with the help of the DNA origami technique. This approach enables controlled positioning of individual complexes at the...

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Veröffentlicht in:ACS nano 2018-02, Vol.12 (2), p.1650-1655
Hauptverfasser: Kaminska, Izabela, Bohlen, Johann, Mackowski, Sebastian, Tinnefeld, Philip, Acuna, Guillermo P
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creator Kaminska, Izabela
Bohlen, Johann
Mackowski, Sebastian
Tinnefeld, Philip
Acuna, Guillermo P
description In this contribution, we fabricate hybrid constructs based on a natural light-harvesting complex, peridinin–chlorophyll a–protein, coupled to dimer optical antennas self-assembled with the help of the DNA origami technique. This approach enables controlled positioning of individual complexes at the hotspot of the optical antennas based on large, colloidal gold and silver nanoparticles. Our approach allows us to selectively excite the different pigments present in the harvesting complex, reaching a fluorescence enhancement of 500-fold. This work expands the range of self-assembled functional hybrid constructs for harvesting sunlight and can be further developed for other pigment–proteins and proteins.
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title Strong Plasmonic Enhancement of a Single Peridinin–Chlorophyll a–Protein Complex on DNA Origami-Based Optical Antennas
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