Hybrid nanostructures for enhanced light-harvesting: plasmon induced increase in fluorescence from individual photosynthetic pigment-protein complexes.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 21972866.
- Also identified by DOI 10.1021/nl202772h.
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Abstract
We studied the optical response from more than 13, 000 individual photosynthetic pigment-protein complexes interacting with spherical gold nanoparticles. The nanodots were arranged in a quasi-hexagonal array by diblock copolymer micellar nanolithography. Exciting the proteins within the spectral range of the nanoparticles' plasmon resonance yields a clear enhancement of the protein fluorescence intensity, whereas excitation far out of the plasmon resonance features no effect. This result indicates a strategy for the construction of efficient hybrid light-harvesting devices.
Medical subject headings
- Coloring Agents
- Nanostructures
- Proteins
- Refractometry
- Spectrometry, Fluorescence
- Surface Plasmon Resonance