11 October 2005 Investigation of the colloidal particles influence on the changes of fluorescence intensity
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Abstract
This paper presents the results of spectroscopic investigations on a synthetic dye solution with high fluorescence quantum yield and mixtures of this solution with colloidal silver particles. Basing on the results obtained the influence of the metal nano-particles presence on the changes of intensity and fluorescence quantum yield of the dye was determined. The purpose of the investigation was to determine the usefulness of fluoresceine in the structure of sensors and indicators of metal presence in the environment. The measurements were made for fluoresceine water solutions and its mixtures in the ranges of concentrations from 10-6 M to 10-3 M. A significant growth of the fluorescence quantum yield in the presence of colloidal particles was only observed in the range of concentrations from 2•10-4 M to 8•10-4 M.
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Joanna Parzych, Joanna Parzych, Przemyslaw Siejak, Przemyslaw Siejak, Jacek Goc, Jacek Goc, Anna Cysewska-Sobusiak, Anna Cysewska-Sobusiak, "Investigation of the colloidal particles influence on the changes of fluorescence intensity", Proc. SPIE 5948, Photonics Applications in Industry and Research IV, 59482I (11 October 2005); doi: 10.1117/12.623153; https://doi.org/10.1117/12.623153
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