. Author manuscript; available in PMC: 2008 Sep 1.

Published in final edited form as: Biophys Chem. 2007 May 31;129(2-3):137–147. doi: 10.1016/j.bpc.2007.05.016

Table 2.

Monolayer transition^* and collapse parameters.

	Mean molecular area (Å²)		π (mN/m)		k (mN/m)		phase state^†
	23 °C	37 °C	23 °C	37 °C	23 °C	37 °C	23 °C	37 °C
1,3lb2 (n=4,3)	55.98 (2.55)	60.61 (2.29)	41.62 (0.94)	36.31 (1.37)	86.67 (2.14)	63.23 (3.20)	L₁	L₁
1,2lb2 (n=4,6)	39.5 (1.64) 68.6 (4.08)	63.59 (1.96)	59.05 (2.7) 28.25 (0.37)	40.64 (0.71)	121.3 (36.9)	141.8 (HV)	L₂ L₁	L₁
1,3lmt2 (n=6,2)	25.5 (2.0) 55.3 (2.3)	63.63	57.4 (1.3) 38.9 (1.1)	37.83 (1.40)	69.5 (5.9)	67.12 (3.37)	L₂ L₁	L₁

Measurements were performed with Tris buffer (40 mM, pH 7.2) as subphase. Values reported are the average of n number of experiments with standard deviations in parentheses.

Phase transition determined by a maximum in the plot of $\frac{d π}{d A}$ versus mean molecular area (not shown).

^†

L₁ and L₂ symbolize liquid-expanded and liquid-condensed state, respectively.

HV denotes high variability.