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. 2005 Dec 2;90(5):1639–1649. doi: 10.1529/biophysj.105.067652

FIGURE 3.

FIGURE 3

Plot of the data obtained from micropipette aspiration of a POPC lipid vesicle in the high-tension regime at 25°C. The data is presented in the form of the frame tension, τ (Eq. 3), as a function of the optically resolvable area, Ap (Eq. 2). The fitting range is limited to τ ≥ 2 mN/m, which yields the apparent area expansion modulus Inline graphic. The error bars are estimated by (δτ/τ) ∼ (δR1/R1) ∼ 1/25 and (δAp/Ap) ∼(δR2/R2) ∼ 1.5 × 10−3. The zero frame tension area, Ap,0, is the intercept of the fitted linear curve and the x axis.