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Positively charged silver nanoparticles and their effect on surface-enhanced Raman scattering of dye-labelled
Danny van Lierop1, Željka Krpetić, Luca Guerrini
1Centre for Molecular Nanometrology, WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral St., Glasgow, G1 1XL, UK.
Chemical Communications (Cambridge, England)
|May 1, 2012
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.
