1 Erratum to: Tribol Lett DOI 10.1007/s11249-010-9587-3

The original version of this article unfortunately contained a mistake. The caption of Figure 7 was incorrect. The corrected caption is given below.

Fig. 7
figure 7

Variation of friction coefficient under triangular potential stimuli. In a 0.1 mM SDS solution, potential range from −0.3 to 0.1 V, b 0.5 mM SDS solution, potential range from −0.4 to 0 V, and c 1 mM SDS solution, potential range from –0.45 to −0.05 V. Dashed line represents potential, grey line cell voltage, and solid line friction coefficient