Fig. 5From: Nanoparticle classification, physicochemical properties, characterization, and applications: a comprehensive review for biologistsGraphical illustration of the types of plasmons. A bulk; B surface propagating; and C surface localized plasmons (adapted from Khlebtsov et al., 2010 [98]). D graphical illustration of the localized surface plasmon resonance (LSPR) in NPs (adapted from Kelly et al., 2003 [99])Back to article page