Guiding molecules with electrostatic forces in surface enhanced Raman spectroscopy
Lacharmoise, P.D.; Le Ru, E.C.; Etchegoin, P.G.
Acs Nano 3(1): 66-72
In surface enhanced raman scattering (SERS) the problem of drawing molecules to the places where surface plasmon resonance enhancements will produce signals is one of the most basic ones, and the initial obstacle to every application of the effect. We explore the possibility of using electrostatic forces as a means to "guide" charged molecules in solution toward SERS active substrates.