Substrates and probes for use in SERS, (surface enhanced Raman spectroscopy), can benefit from optimum design based on both physical models and controlled systematic experimentation.  Many factors play into the objective of obtaining maximum enhancement.  Excitation within the visible spectrum induces electromagnetic fields in noble metal nanoparticles making them ideal candidates for such studies. We compare the SERS signal intensity of Raman reporter molecules attached to polyelectrolyte coated gold nanorods. Experimental results coincide with theoretical predictions of dramatic decrease in signal intensity with increasing nanometer distances from the nanorods surface.

Role of Raman reporter molecular surface coverage and distance dependent plasmonic effects on SERS in polyelectrolyte coated gold nanorods

243rd National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.