Table 1.

Permeability across lipid bilayers

	P (cm⋅s−1)	kdiff =  (s−1)
H2O	2.3  × 10−3	920*
ONOO−	8.0  × 10−4	320
O2−·	2.1  × 10−6	0.84*

A, membrane surface area (cm²/L); P, permeability coefficient (cm⋅s⁻¹); k_diff, rate of ONOO⁻ exchange across the membrane; V_in, entrapped volume (mL/L). 

^*These values were calculated by using A and V_in parameters of our LUV system and published values of permeability coefficients (49–51).