Research Article
Cell Morphology on Poly(methyl methacrylate) Microstructures as Function of Surface Energy
Table 1
Contact angles and calculated surface energy values for structured and nonstructured (control) surfaces (pe: perpendicular, pa: parallel).
| | H2O (°) | CH2I2 (°) | Surface energy (mN/m) | Polar part (mN/m) | Disperse part (mN/m) |
| Nonstructured/pa | 75.4±2.6 | 43.5±2.9 | 43.4 | 5.6 | 37.8 |
| Nonstructured/pe | 77.8±2.7 | 44.6±3.0 | 42.0 | 4.8 | 37.3 |
| P1:1 Cubes/pa | 87.2±1.3 | 61.4±2.8 | 31.4 | 3.6 | 27.8 |
| P1:1 Cubes/pe | 85.8±2.4 | 60.3±2.5 | 32.4 | 3.9 | 28.4 |
| P1:5 Cubes/pa | 81.9±1.9 | 59.8±1.9 | 34.0 | 5.3 | 28.7 |
| P1:5 Cubes/pe | 81.0±0.9 | 59.3±2.7 | 34.6 | 5.6 | 29.0 |
| P1:1 Walls/pa | 131.9±3.9 | 66.8±0.3 | 27.1 | 2.4 | 24.7 |
| P1:1 Walls/pe | 58.6±0.7 | 32.9±1.4 | 55.0 | 12.0 | 43.0 |
| P1:5 Walls/pa | 126.4±3,7 | 97.4±2.8 | 9.6 | 0.0 | 9.6 |
| P1:5 Walls/pe | 70.4±1.4 | 58.5±1.4 | 40.1 | 10.6 | 29.4 |
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