Table 3 Contact angle of the liquid paraffin on the substrates.

From: Evidence for intermolecular forces involved in ladybird beetle tarsal setae adhesion

Substrates

\({\theta }_{E}\), º

Mean ± SE

\({\theta }_{R}\), º

Mean ± SE

Glass

17.9 ± 1.0

5.0 ± 1.6

Silicon

35.1 ± 0.4

32.9 ± 1.7

methacrylate low-viscosity resin

31.1 ± 1.3

24.1 ± 2.5

polystyrene EOG

3.3 ± 0.4

0.86 ± 0.86

Polystyrene

7.7 ± 0.4

3.1 ± 0.6

Sapphire

11.8 ± 0.7

6.3 ± 1.6

  1. \({\theta }_{E}\) is the contact angle of the liquid at equilibrium and \({\theta }_{R}\) is the receding contact angle.
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