Strong Plasmonic Enhancement of a Single Peridinin-Chlorophyll a-Protein Complex on DNA Origami-Based Optical Antennas.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 29353479.
- Also identified by DOI 10.1021/acsnano.7b08233.
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Abstract
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.
Medical subject headings
- Carotenoids
- Chlorophyll A
- DNA
- Dinoflagellida
- Light-Harvesting Protein Complexes
- Nanostructures
- Protozoan Proteins