Figure 3.

Distribution histogram of all measured adhesion forces. The adhesion forces measured when there were no interactions (between bare tip and rat anti-human IgG), only non-specific interactions (blocking experiment) and specific interactions (between human IgG and rat anti-human IgG) were represented by red,white and black bars, respectively. The solid lines are theoretical Gaussian distribution curves

Lv et al. Nanoscale Research Letters 2010 5:1032-1038   doi:10.1007/s11671-010-9598-x