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. 2019 Oct 23;21:328–340. doi: 10.1016/j.isci.2019.10.036

Figure 2.

Figure 2

Optical and Mechanical Properties of Polyacrylamide Hydrogel

(A) Design criteria selected for optimization of polyacrylamide formulation.

(B) Absorbance values of hydrated polyacrylamide disks with different formulations. Top left: λ = 470 nm, the excitation wavelength for FAM (n = 4). Top right: λ = 520 nm, the emission wavelength for FAM (n = 4). Bottom left: λ = 550 nm, the excitation wavelength for TAMRA (n = 4). Bottom right: λ = 580 nm, the emission wavelength for TAMRA (n = 4). See also Figure S1 and Table S1.

(C) The shrinkage percentage of polyacrylamide hydrogel for different polymer formulations (n = 6). See also Figure S2

(D) The Young's modulus of dehydrated polyacrylamide hydrogel for different polymer formulations (n = 4). Data analyzed using a two-way ANOVA with Tukey post-hoc test. “ns” indicates not significant, “*” indicates significant at p < 0.05, “**” indicates significant at p < 0.01, and “****” indicates significant at p < 0.0001. Line indicates comparison between groups. Data are represented as mean ± standard deviation.