“…The use of nanomaterials in signal enhancement for the detection of an analyte in SPR has been intensely studied. Most commonly applied nanomaterials include latex nanoparticles [38], metallic nanoparticles e.g., gold and silver nanoparticles [39,40], magnetic nanoparticles [41,42], carbon-based nanostructures e.g., graphene [40,43] and liposome nanoparticles [41,44]. However, the use of the above nanoparticles in the enhancement of SPR-based assays of biological materials are predominantly for protein and small molecules.…”