effects of irregular bimetallic nanostructures on the optical properties of photosystem i from thermosynechococcus elongatus

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2015
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Abstract
The fluorescence of photosystem I (PSI) trimers in proximity to bimetallic plasmonic nanostructures have been explored by single-molecule spectroscopy (SMS) at cryogenic temperature (1.6 K). PSI serves as a model for biological multichromophore-coupled systems with high potential for biotechnological applications. Plasmonic nanostructures are fabricated by thermal annealing of thin metallic films. The fluorescence of PSI has been intensified due to the coupling with plasmonic nanostructures. Enhancement factors up to 22.9 and 5.1 are observed for individual PSI complexes coupled to Au/Au and Ag/Au samples, respectively. Additionally, a wavelength dependence of fluorescence enhancement is observed, which can be explained by the multichromophoric composition of PSI.
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ashraf2015photonicseffects Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Imran Ashraf;Sepideh Skandary;Mohammad Y. Khaywah;Michael Metzger;Alfred J. Meixner;Pierre M. Adam;Marc Brecht
Journal pakistan journal of medical sciences
Year 2015
DOI
10.3390/photonics2030838
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