“…Dendrimers can be constructed by divergent and convergent methodologies, pioneered by Tomalia and Frechét, in which the hyperbranched structure is either built from the core, in a layer-by-layer fashion, or through attaching dendrons to a central core [ 70 , 71 ]. Some well-known dendrimers include poly(amidoamine) (PAMAM), poly(propylene imine) (PPI), phosphorus, and bis-MPA-based dendrimers [ 72 , 73 , 74 , 75 ]. Dendrimers are classified by their generation, which is defined as the number of branched layers from a central core, such as G0, G1, G2 ( Figure 2 ).…”