Positively charged silver nanoparticles and their effect on surface-enhanced Raman scattering of dye-labelled oligonucleotides.

van Lierop, Danny; Krpetic, Zeljka; Guerrini, Luca; Larmour, Iain A; Dougan, Jennifer A; Faulds, Karen; Graham, Duncan

van Lierop, Danny; Krpetic, Zeljka; Guerrini, Luca; Larmour, Iain A; Dougan, Jennifer A; Faulds, Karen; Graham, Duncan.

Afiliação

van Lierop D; Centre for Molecular Nanometrology, WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral St., Glasgow, G1 1XL, UK.

Chem Commun (Camb) ; 48(66): 8192-4, 2012 Aug 25.

Article em En | MEDLINE | ID: mdl-22544041

ABSTRACT

ABSTRACT

Improved positively charged nanoparticles are described to provide a simplified SERS substrate for DNA detection. Complete flocculation of the nanoparticles is prevented due to the controlled analyte induced aggregation. This provides a stable aggregation state which significantly extends the analysis window simplifying DNA detection by SERS.

Assuntos

Corantes/química; Nanopartículas Metálicas/química; Oligonucleotídeos/química; Prata/química; Análise Espectral Raman; Espermina/química; Propriedades de Superfície

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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Oligonucleotídeos / Prata / Corantes / Nanopartículas Metálicas Idioma: En Ano de publicação: 2012 Tipo de documento: Article

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