Ultra-sensitive diagnostic method based on Surface Enhanced Raman Spectroscopy on plasmonic beads in suspension
In this work, surface enhanced Raman spectroscopy (SERS) was combined with dielectrophoresis (DEP) to realize a controllable in situ detection method of enhanced Raman signals from molecules in suspension environment. Polymer beads coated with gold nanoparticles were prepared as SERS ‘hot spot’ substrates. Several DEP electrode designs were evaluated and the stripe electrode succeeded in manipulat
