Figure 7.

Schematics of theoretical model of the micropipette aspiration test (Adapted from [17]). (A) A model cell is being sucked, under a pressure ΔP, into a micropipette with inner and outer radius a and b, respectively. The portion of the cell inside the micropipette is L. r and z are coordinates fixed on the cell at the tip of the micropipette. (B) Viscoelastic model of the cell: a spring with elastic constant k1 is connected in parallel with a spring (elastic constant k2) and a dashpot (apparent viscosity μ) connected in series.

Tan et al. BMC Cell Biology 2008 9:40   doi:10.1186/1471-2121-9-40
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