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. 2009 Mar 20;106(14):5639–5644. doi: 10.1073/pnas.0900323106

Fig. 4.

Fig. 4.

Thoretical analysis of directional adhesion of the slanted nanohairs. (A and B) An illustration showing the change of leaning angle of the slanted nanohairs when the dry adhesive is pulled in the forward (A) and the reverse (B) directions. (C) Critical peel-off forces as a function of peeling angle.