Fig. 2.

Processed raw force data of Fig. 1. Derived distributions of the Young’s moduli of (a) normal and (b) cancerous cell body. (c) Forces between the AFM probe and cell brush (see Supporting Materials for details). Force shown in logarithmic scale is plotted against the distance between the probe and cell body, h. The slower force decay at large distances in cancerous cells is highlighted by the circle. Force curves for cancerous and normal cells are clearly different. Only one force curve for a normal cell is in the region of the cancerous cell and approximately two cancerous force curves overlapped with normal cells.