Table 1 Estimated values of critical angle (see Fig. 7A) and threshold force for three surfaces.

From: A magnet-actuated biomimetic device for isolating biological entities in microwells

Surface

Critical angle (α)

Threshold force (µN)

Plain

57.4°

~3.80

Microwell-surface

56.4°

~3.76

Micropillar-surface

41.5°

~2.99