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. 2020 Oct 30;6(44):eabc1937. doi: 10.1126/sciadv.abc1937

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Fig. 3 — Evolution in (A) storage modulus versus water volume fraction ε. Linear fit to a Voigt model (equation in figure) yields the elastic moduli of water and solute: M_w= 2.20 GPa and M_s = 5.64 GPa; R² = 0.994. (B) (Top plot) Brillouin frequency shift and (bottom plot) linewidth of gelatin versus polymer volume fraction. The error bars encompass the range of values obtained from the fits. The red triangles denote the frequency shifts and linewidths of the theoretical curves derived from the viscoelastic fit.