Documentation scienceplus.abes.fr version Bêta

À propos de : Raman and Surface Enhanced Raman Microscopy of MicrostructuredPolyethylenimine/DNA Multilayers        

AttributsValeurs
type
Is Part Of
Subject
Title
  • Raman and Surface Enhanced Raman Microscopy of MicrostructuredPolyethylenimine/DNA Multilayers
has manifestation of work
related by
Author
Abstract
  • We analyze microstructured multilayer films of poly(ethyleneimine) (PEI) and DNA by employing Raman andsurface enhanced Raman spectroscopy (SERS). The microstructuring of the samples allows a simultaneous measurementof signal and reference in a single analytic process. Silver nanoparticles are implemented in the microstructuredmultilayers for SERS measurements. The recorded SERS spectra of PEI/DNA are dominated by the Raman bandsof the DNA bases which show a larger mean enhancement than bands belonging to DNA backbone vibrations. Ourresults show that the combination of SERS and microstructured multilayer films provides an adapted way to characterizethe polyelectrolytes as well as to measure the enhancement factor and the distance dependence for the SERS activesilver nanoparticles. Furthermore, microstructured polyelectrolyte films containing SERS active nanoparticles are usedfor sensing molecules.
article type
is part of this journal



Alternative Linked Data Documents: ODE     Content Formats:       RDF       ODATA       Microdata