BCNW were incorporated into thermoplastic corn starch nanocomposites (TPCS).
Colourless TPCS/BCNW nanocomposites were prepared by melt blending process.
BCNW enhanced oxygen barrier up to 95% as compared to the neat TPCS.
Multilayer structures based on TPCS/BCNW films and PHA/BCNW coatings were developed.
Barrier properties of the multilayer structures thus obtained were significantly improved.