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Study on Self-Assembly of Gold Nanoparticles Directed by Glutathione with Resonance Light Scattering Technique and Its Analytical Applications

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In this paper, it has been demonstrated that gold nanoparticles can self-assemble to form network structure in the presence of glutathione, which results in great enhancement of resonance light scattering (RLS). Results from this RLS experiments confirm that RLS is a sensitive and convenient technique for studying the self-assembly of nanoparticles. The principles of the enhanced RLS of nanoparticle assemblies are discussed, and the mechanism of the interaction between gold nanoparticles and glutathione is investigated. The enhanced RLS of gold nanoparticle assemblies directed by glutathione is also successfully applied to sensitive determination of glutathione. Under the optimal conditions, the calibration curve for glutathione determination is linear in concentration range of 0.01–0.1 μg/ml, and the corresponding detection limit is 4.7 ng/ml (3σ, 15.3 nM).
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Document Type: Research Article

Publication date: 2006-12-01

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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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