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The Effect of Gold Colloid on the Fluorescence Spectrum from Safranine T: A Physical Mechanism Based on Resonance Light Scattering

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Abstract:

The non-monotonic change of fluorescence intensity from Safranine T was observed experimentally by adding gold colloids to the Safranine T aqueous solution. Increasing the content of gold colloids leads to the fluorescence emission peak red shift and increases first and then decreases. We believe that one of the important reasons of the fluorescence changing and shifting is due to the resonance light scattering from gold nanoparticles which is stimulated by the fluorescence of Safranine T and is tunable by the shell thickness of the ST that coated around the gold particles.

Keywords: FLUORESCENCE; GOLD NANOPARTICLES; RESONANCE LIGHT SCATTERING; SAFRANINE T

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2011.3865

Publication date: 2011-05-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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