Figure 6: Methodology for LbL films. Left: film components. Three poly(β-amino esters) were investigated as degradable polycations. Poly(carboxymethyl-β-cyclodextrin) was used as the anionic supramolecular complex. Right: electrostatic assembly. Light blue: water. (+) indicates addition of polycation. (−) indicates addition of anionic supramolecular complex. Bottom shows molecules used in experimentation. NSAID: nonsteroidal anti-inflammatory drug [39].