- Tytuł:
- Interactions of Photosystem I with Plasmonic nanostructures
- Autorzy:
-
Hussels, M.
Nieder, J. - Powiązania:
- https://bibliotekanauki.pl/articles/1419504.pdf
- Data publikacji:
- 2012-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
73.20.Mf
87.64.kv
87.80.Nj - Opis:
- The plasmonic interaction effects of various nanostructures on the fluorescence properties of photosystem I as found by single-molecule spectroscopy are summarized. The used nanostructures are spherical Au nanoparticles, silver island films as well as hexagonal arrays of nanometer-sized Au- and Ag-triangles (the Fischer patterns). The fluorescence emission of photosystem I is intensified due to coupling with these nanostructures. For single photosystem I complexes, enhancement factors of up to 37 were observed. The average enhancements vary between 2.2 for Au Fischer pattern and 9 for spherical Au nanoparticles. The enhancement of the fluorescence of photosystem I demonstrates in all cases a strong wavelength dependence. This wavelength dependence can be explained by the spatially largely extended multichromophore composition of photosystem I complexes. From the viewpoint of the usability of these nanostructures for spectroscopic signal enhancement, the Fischer patterns are beneficial, due to their very low autoluminescence.
- Źródło:
-
Acta Physica Polonica A; 2012, 122, 2; 269-274
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł