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. 2017 Apr 3;7:45575. doi: 10.1038/srep45575

Figure 1. Schematic of indentation on an isolated hemispherical cell.

Figure 1

The cell with radius R1 is located on a rigid flat substrate and indented by a spherical indenter with radius R2. For convenience, a cylindrical coordinate system with the origin at the center of the cell and the z-axis along the compressive direction is established.