Preparation and Applications of the Cellulose Nanocrystal

Figure 4

TEM of CNCs obtained from wood pulp using different pretreatments, (a) enzymatic, (b) TEMPO-mediated oxidation, and (c) carboxymethylation, and obtained from (d) Opuntia ficus-indica [51].

(a)

(b)

(c)

(d)