409676.fig.001a
(a)
409676.fig.001b
(b)
409676.fig.001c
(c)
Figure 1: Schematics of (a) single cellulose chain repeat unit, showing the directionality of the 1→4 linkage and intrachain hydrogen bonding (dashed lines), (b) idealized cellulose microfibril showing one of the suggested configurations of the crystalline and amorphous regions, and (c) cellulose nanocrystals after acid hydrolysis dissolved the disordered regions.