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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. 3.

Fig. 3

Finite element method (FEM)-based simulation of the expanded PDMS balloons at fixed air pressure of 14 kPa. (a) The simulation result of the 2.0 mm-diameter PDMS balloon provides detailed information on the deformation of the balloon such as stress concentration. h and D are the center height and diameter of the PDMS balloon, respectively. (b) Profiles of the expanded PDMS balloon measured by 3D laser scanning microscopy and FEM simulation show good agreement.