Table 5 Values of the bearing area curve for two pipette tips having different sizes.
From: Surface properties of glass micropipettes and their effect on biological studies
Name | Value (D t = 34.5 μm) | Value (D t = 3.9 μm) | Description |
|---|---|---|---|
S k | 412.7 nm | 85.5 nm | Core roughness depth, Height of the core material |
S pk | 266.3 nm | 42.6 nm | Reduced peak height, mean height of the peaks above the core material |
S vk | 320.1 nm | 66.3 nm | Reduced valley height, mean depth of the valleys below the core material |
S mr1 | 10.91% | 8.16% | Peak material component, the fraction of the surface which consists of peaks above the core material |
S mr2 | 89.08% | 84.98% | Peak material component, the fraction of the surface which will carry the load |
V mp | 0.013 ml/m2 | 0.002 ml/m2 | Peak material volume of the topographic surface (ml/m2) |
V mc | 0.146 ml/m2 | 0.033 ml/m2 | Core material volume of the topographic surface (ml/m2) |
V vc | 0.204 ml/m2 | 0.039 ml/m2 | Core void volume of the surface (ml/m2) |
V vv | 0.028 ml/m2 | 0.006 ml/m2 | Valley void volume of the surface (ml/m2) |
V vc/V mc | 1.410 | 1.174 | Ratio of V vc parameter to V mc parameter |