Table 1 Elastic cantilevers that have been used to measure drop friction on various substrates.

From: Probing surface wetting across multiple force, length and time scales

Cantilever type

Length (cm)

Width (μm)

k (nN/μm)

Resolution (nN)

Rectangular glass capillaries41,49

3.5 − 5

40 − 400

100 − 200

~40

Polymeric tubes29,32,33

6 − 10

360

2 − 30

10 − 100

Glass micropipettes81,86

1.5 − 3

~30

0.1 − 200

~1