Alt text
Figure 3: The functions of sulfuric acid and F127. (a) Yields with various acid concentrations. (b) Model of F127/H2SO4/xylose composite micelle. (c) Schematic illustration of products at different acid concentrations in the presence of F127, from OPPs to solid particles. TEM images of products with different acid concentrations in the presence of F127: (d) 0.92 M, (e) 1.53 M, (f) 1.84 M.