Extended Data Fig. 10: SAXS analyses of artificially aged spruce and maple wood.
From: Wood cellulose microfibrils have a 24-chain core–shell nanostructure in seed plants

SAXS profile comparisons for untreated spruce and spruce treated with KOH, Ca(OH)2, and hot water are shown in (a). The mean and standard deviation are plotted for cross-section areas (b) and cross-section aspect ratios (c). Sample size: untreated n = 9 (three location form three trees) and treated n = 3 (three locations per tree). The p values are calculated using two-tailed Welch’s t-test against untreated controls. (d) The mean and standard deviation are plotted for crystallite widths along the directions of (110), (1–10), and (200) (untreated n = 5, treated n = 1).