Facile Biosynthesis and Antioxidant Property of Nanogold-Cellulose Fiber Composite

Figure 1

Photographs of unbleached kraft fibers and composite sheets after formation of gold nanoparticles with different concentrations of HAuCl₄·3H₂O; (a) UBK only; (b) UBK-Au (1.9 wt%); (c) UBK-Au (5.3 wt%).

(a)

(b)

(c)