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	Provedor de dados Nature Precedings (1) Autor Chen-An Tien (1) Ching-Wen Chang (1) Folarin Erogbogbo (1) Mark T. Swihart (1) Priscilla Adjei-Baffour (1) Wing-Chueng Law (1) Mais... Palavra-chave Biotechnology (1) Cancer (1) Chemistry (1) Tipo do documento Manuscript (1) Ano 2012 (1) País United Kingdom (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Biodegradable Luminescent Silicon Quantum Dots for Two Photon Imaging Applications Nature Precedings Chen-An Tien; Folarin Erogbogbo; Ching-Wen Chang; Priscilla Adjei-Baffour; Wing-Chueng Law; Mark T. Swihart. Cadmium- and lead-based quantum dots are normally coated for biological applications, because their degradation may result in the release of toxic heavy metal ions. Here, we synthesize silicon quantum dots that are expected to biodegrade to non-toxic products. A chitosan coating is used to render the silicon quantum dots stable in storage conditions and biodegradable at physiological conditions. The applications of these particles are demonstrated in cellular imaging with single and two-photon excitation. These results open the door for a new generation of silicon quantum dots that may have a wide variety of applications derived from the flexibility of chitosan. Tipo: Manuscript Palavras-chave: Biotechnology; Cancer; Chemistry. Ano: 2012 URL: http://precedings.nature.com/documents/7012/version/1 Registros recuperados: 1 Primeira ... 1 ... Última

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