Comparative 3D quantitative surface texture parameters of HPMC matrices (n = 5, standard deviations are in parenthesis).
| Surface texture parameter | Contour GT Elite K (single image) | Contour GT Elite K (whole surface) | Dimension icon (AFM) |
|---|---|---|---|
| Sa (μm) | 3.22 (0.20) | 3.35 (0.18) | 3.11 (0.15) |
| Sq (μm) | 4.09 (0.11) | 4.23 (0.19) | 3.93 (0.17) |
| Sz (μm) | 93.22 (9.29) | 106.34 (11.29) | 99.34 (6.99) |
| Sp (μm) | 44.11 (5.88) | 51.86 (4.11) | 51.12 (3.89) |
| Sv (μm) | 49.11 (6.15) | 54.48 (5.13) | 48.22 (4.22) |
| Sku (μm) | 2.89 (0.88) | 3.044 (0.50) | 3.09 (0.15) |
| Ssk (μm) | −0.177 (−0.08) | −0.189 (−0.07) | −0.195 (−0.09) |
| Sds (μm−2) | 80.22 (8.11) | 84.2 (6.88) | 81.39 (9.21) |
| Sal (μm) | 84.55 (3.88) | 91.20 (2.54) | 87.89 (3.18) |
| Str | 0.86 (0.09) | 0.880 (0.07) | 0.86 (0.06) |
| Vm (μm3 μm−2) | 0.188 (0.05) | 0.192 (0.06) | 0.189 (0.04) |
| Vv (μm3 μm−2) | 3.77 (0.51) | 3.82 (0.44) | 3.74 (0.59) |
| Vvv (μm3 μm−2) | 0.189 (0.08) | 0.195 (0.06) | 0.186 (0.07) |
| Vvc (μm3 μm−2) | 3.01 (0.12) | 3.15 (0.20) | 2.98 (0.23) |
| Vmc (μm3 μm−2) | 1.75 (0.22) | 1.84 (0.18) | 1.77 (0.15) |
| Vvc + Vmc (μm3 μm−2) | 4.76 (0.28) | 4.99 (0.29) | 4.75 (0.30) |
| Sdr | 0.492 (0.05) | 0.512 (0.09) | 0.500 (0.05) |
| Sdq | 0.992 (0.10) | 1.02 (0.11) | 0.994 (0.09) |