Effects of Irregular Bimetallic Nanostructures on the Optical Properties of Photosystem I from Thermosynechococcus elongatus
نویسندگان
چکیده
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. Photonics 2015, 2 839
منابع مشابه
Two-Photon-Sensitized Fluorescence and Excitation Spectra of Photosystem I of Thermosynechococcus elongatus
The Journal of Physical Chemistry B is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Article Two-Photon-Sensitized Fluorescence and Excitation Spectra of Photosystem I of Thermosynechococcus elongatus Michael Hilbert, Axel Wehling, Eberhard Schlodder, and Peter J. Walla J. Phys. Chem. B, 2004, 108 (34), 13022-13030• DOI: 10.1021/jp048576o • Publica...
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