“…In this way, chitosan and starch have also been involved in several studies using this technique. These studies include the combination of biopolymers [ 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ] and/or the incorporation of fillers, such as nanoparticles, fibers, and layers [ 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 ].…”