Fig. 5
From: Liquid–liquid phase separation morphologies in ultra-white beetle scales and a synthetic equivalent
Structure formation and characterisation of synthetic whites a SEM image of a porous white cellulose acetate film, with an inset showing the appearance of the white synthetic film. b Optical reflectance comparison for scales of L. stigma, Cyphochilus and an optimum cellulose acetate white film (12.8 ± 1.6 µm in thickness) The shaded area represents the confidence levels calculated as the standard deviation across all measurements collected. c Amplification factor R(q), measured by ultra small-angle X-ray scattering (USAXS) plotted as R(q)/q2 versus q2, showing a linear region typical of spinodal decomposition. d Linear fit to the initial slope of the wavelength normalised spin-echo small-angle neutron scattering (SESANS) Gx(y) signal, used to measure the density and therefore the filling fraction of the synthetic white films.The error bars are calculated based on the neutron counting statistics
