“…A promising approach is the use of (metal) nanoparticles to separate enantiomers in solution. While several methods rely on the use of Au [15,16] and Ag nanoparticles [17][18][19], these do not engage the plasmon resonances, but rather the functionalization of the metallic surface with chiral or non-chiral ligands [15,17], also exploring the use of the inherent chirality of Au or Ag nanoparticles or clusters [18,16,19] (note a helpful review in [20] on the subject). Superchiral electromagnetic near-fields (that is, the electromagnetic fields with the optical chirality higher than that of a free-propagating CP light) can be induced in the direct proximity of the nanostructures, interacting with the CP or even linearly-polarized light.…”