2nd World Congress and Expo on Nanotechnology and Material Science April 04-06, 2016 at Dubai, UAE
Conference Proceedings

Oral Highly efficient and ultrasensitive nanosensor of proteins

Nekane Guarrotxena
Spanish National Research Council (CSIC), Juan de la Cierva 3, Madrid-Spain

Published 2018-01-01


Surface Enhanced Raman Spectroscopy (SERS) is attributed primarily to the enhancement of the incident and scatteredelectromagnetic fields near metal surfaces through excitation of localized surface plasmons. This condition requirespositioning the reporting molecule within special sites in nanostructured metal surfaces (hot spots) where the enhancement isgreatest. A readily available and reliable hot spot is found in the junction between two metal NPs. In this sense, our current workhasengineered a successful nanostructured tool for developing sensory materials that incorporate important improvementsin SERS-tags sensitivity (femtoMolardetection level) by properly managing the interaction between Ag-nanoparticles withinnanoassemblies; making dimer-like nanostructures ideal in a wide range of tagging, sensing, and analysis applications.