Figure 4.

(a) DNA and (b) protein levels in the lysates of three distinct cell lines obtained through an eight-constriction treatment (light-shaded columns) and a chemical treatment (dark-shaded columns). The constrictions are $w=10$ μm and $d=7$ μm. The population density is 2.5 × 10⁶ cells/mL. (ns: not significant; $* p<0.05$; $** p<0.01$; $**** p<0.0001$; two-tailed t-test). Error bars: ±1 SD ($n=3$).