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Various nanocellulose products and their microscopic morphology under scanning electron microscopy (SEM) or transmission electron microscopy (TEM) observation: (A) BNC (images are reproduced from [10] with the copyright permission from WEILEY-VCH Verlag GmbH & Co.); (B) Cellulose nanofibrils (CNFs); (C) cellulose nanocrystals (CNCs).
