Microfibrillated cellulose - Its barrier properties and applications in cellulosic materials: A review

► Interest for microfibrillated cellulose (MFC) is exponentially increasing. ► Nano-scale dimensions and ability to form a strong entangled nanoporous network. ► New sources, new mechanical processes, new pre- and post-treatments induce new types of MFC materials for industrialization. ► Focus on the barrier properties of MFC used as films, in nanocomposites or in paper coating is then proposed.