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Cross-sectional view of a 36-chain cellulose microfibril showing carbon and oxygen atoms but not hydrogen. Chains shaded gray are hydrogen bonded to two adjacent chains, and those shown as white are hydrogen bonded to just one adjacent chain. Broken lines indicate the three crystal planes that contribute the tallest peaks in a WAXS diffractogram, labeled according to the cellulose Iβ unit cell of Nishiyama et al. (2002).
