Quantum Plasmonics: Optical Monitoring of DNA-Mediated Charge Transfer in Plasmon Rulers.
basic_science · Level V
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- Record sourced from PubMed, PMID 26789736.
- Also identified by DOI 10.1002/adma.201503885 and PMC identifier 4783186.
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Abstract
Plasmon coupling between DNA-tethered gold nanoparticles is investigated by correlated single-particle spectroscopy and transmission electron microscopy for interparticle separations between 0.5 and 41 nm. Spectral characterization reveals a weakening of the plasmon coupling due to DNA-mediated charge transfer for separations up to 2.8 nm. Electromagnetic simulations indicate a coherent charge transfer across the DNA.
Medical subject headings
- DNA
- Quantum Theory