“…The development of biopolymer composite films for drug delivery is the subject of three papers in the Special Issue [ 7 , 8 , 9 ]. Lim et al [ 7 ] evaluated the feasibility of using three mucoadhesive polysaccharides (hydroxypropyl methylcellulose, starch, and hydroxypropyl starch) to develop curcumin-loaded buccal films delivered in the form of chitosan nanoparticles. The results indicated that hydroxypropyl starch is the most suitable mucoadhesive polysaccharide for developing curcumin-loaded buccal films due to the superior curcumin release, good payload uniformity, minimal weight/thickness variations, high folding resistance, and good long-term storage stability of the composite films.…”