Fig. (IMAGE)

The University of Osaka

Fig.

Caption

Alkali treatment makes delignified wood transparent by removing hemicellulose and exchanging carboxyl-group counterions, which softens the cell walls. This allows the internal lumens to collapse, making the material highly transparent. The tangential section allows for a more complete collapse of cell lumens, leading to a denser structure and superior light transmission than the radial section. The scale bar is 50 µm.

Credit

2026, Hitomi Yagyu et al., Anisotropic Transparency of Alkali-Treated Wood, Macromolecular Materials and Engineering

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