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Table 3 Tip surface properties for two pipettes 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 a 149.1 nm 30.8 nm Average height of selected area
S q 209.9 nm 42.0 nm Root-mean-square height of selected area
S p 1437.4 nm 304.1 nm Maximum peak height of selected area
S v 1,409.3 nm 238.0 nm Maximum valley depth of selected area
S z 2,846.7 nm 542.1 nm Maximum height of selected area
S 10z 2,304.3 nm 414.59 nm Ten-point height of selected area
S sk -0.2118 -0.514 Skewness of selected area
S ku 7.0253 6.4208 Kurtosis of selected area
S dq 0.5767 1.3246 Root-mean-square gradient
S dr 13.129% 79.532% Developed interfacial area ratio