Find here some references of the use of nanoparticles with SPR imaging. I hope this will be of interest to you.
Generally, NP are used to enhance the detection of SPR.
- Malic and al. (2011). Designed biointerface using near-infrared quantum-dots for ultrasensitive surface plasmon resonance imaging biosensors. Analytical chemistry, 83(13):5222-5229
- Vance SA and Sandras MG. (2014) Zeptomole Detection of C-Reactive Protein in Serum by a Nanoparticle Amplified Surface Plasmon Resonance Imaging Aptasensor. Scientific reports, 4:5129