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SEM images of (a) ANC from CMC (reproduced from [76] under the terms of the Creative Commons CC BY license), (b) CNY from carboxymethyl cellulose sodium salt with polyethylene oxide at ratio 1:1 (reproduced from [77] with permission of John Wiley & Sons), (c) cellulose filament from carboxymethylated CNF (reproduced from [78] under the terms of the Creative Commons CC BY license).
