Table 4. Comparison of cell’s rheological characteristics predicted by different models.

Model	Low frequency		High frequency		Power-law exponent α
	G′	G″	G′	G″
Poroelastic	G′ ∝ ω0.5	G″ ∝ ω0.5	G′ ∝ ω0.5	G″ ∝ ω0.5	0.5
Four-element	G′ ~ ωα	G″ ~ ωη	$\underset{\mathrm{\omega }\to \infty }{\text{lim}}G\prime =\text{constant}$	$\underset{\mathrm{\omega }\to \infty }{\text{lim}}G\prime \prime =0$	Approximate power-law (14)
SGR	G′ ∝ ωα	G″ ∝ ωα	$\underset{\mathrm{\omega }\to \infty }{\text{lim}}G\prime =\text{constant}$	$\underset{\mathrm{\omega }\to \infty }{\text{lim}}G\prime \prime =0$	Depending on the mean-field noise temperature (18)
Present self-similar hierarchical	G′ ∝ ωα	G″ ∝ ωα	$\underset{\mathrm{\omega }\to \infty }{\text{lim}}G\prime =\text{constant}$	$\underset{\mathrm{\omega }\to \infty }{\text{lim}}G\prime \prime =\mathrm{\omega }\mathrm{\eta }$	0.125 to 1.0
Living cells	G′ ∝ ωα	G″ ∝ ωα	$\underset{\mathrm{\omega }\to \infty }{\text{lim}}G\prime =\text{constant}$	$\underset{\mathrm{\omega }\to \infty }{\text{lim}}G\prime \prime =\mathrm{\omega }\mathrm{\eta }$	0.1 to 1.0