Table 1.

The equilibrium pressures (π _e) and kinetic parameters (κ) of DOTAP monoalyer at different subphase pH ([BSA] = 0, 1 × 10⁻⁸M).

pH	πe1 (mN/m)	πe2 (mN/m)	∆π (mN/m)	κ × 104 s−1
	DOTAP	DOTAP-BSA		DOTAP	DOTAP-BSA
3	12.1	6	−6.1	6.843	6.248
5	14.0	1.5	−12.5	9.849	8.481
10	13.6	1.1	−12.5	16.300	7.377

The calculation of the κ value was based on the data of π − t curves from 0 to 5000 s and 0 to 7000 s for pure DOTAP monolayer and mixed DOTAP-BSA monolayer ([BSA] = 1 × 10⁻⁸ M), respectively.