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. Author manuscript; available in PMC: 2019 Jul 10.
Published in final edited form as: Lab Chip. 2018 Jul 10;18(14):2077–2086. doi: 10.1039/c8lc00320c

Fig. 4.

Fig. 4

Alginate gel deformation under static compression. (a) Alginate gel constructs (diameter: ~800 μm, height: ~1 mm). (b) Alginate gel on the largest PDMS balloon (D = 2.0 mm) before (left) and under (right) compression. Resultant strain is 33.8%. (c) Compressive strain of alginate gel (εgel) increased with the balloon diameter (D). Error bar: standard deviation. Red line: linear fitting line. The differences in εgel are significant between all pairs (p < 0.05). Inset: Difference between the height change of the gel (Δhgel) and the center height of the PDMS balloon (h) decreased with D and approached Δhgel ≈ h (shown as the red line).