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Linear portion of mechanical properties as a function of different concentrations of agar–glycerin percentages. The mechanical properties are the Young’s modulus (left column), elongation at break (mid column) and ultimate tensile strength (right column) for low (top row), medium (mid row) and high (bottom row) agar and glycerin concentrations. The regression coefficients for mechanical properties [Equation (S1)] are given in Supplementary Materials.
