Mesoscopic models of lipid bilayers and bilayers with embedded ...

5.2 Single-tail lipid bilayers 61
ahh
40
30
20
L EI
L E
10
0.7 0.8 0.9 1.0 1.1
Figure 5.3: Computed phase diagram of the lipid ht9 as function of head-head repulsion parameter
ahh and reduced temperature T ∗ . At high values of the head-head repulsion parameters
the interdigitated LβI phase is formed, while at low values the non-interdigitated Lβ phase
is formed. Increasing temperature causes the melting of the bilayer to the Lα phase.
The lipid ht9
Head-head repulsion a hh = 35
In figure 5.4 the average area per lipid AL and the bilayer thickness, Dc, are plotted as
function of temperature. The error bars have been calculated with the block averages
method [76, 105]. In all the other plots of the area per lipid or bilayer thickness, we
will not include error bars, which, however, have been estimated as ≤ 5%.
A L
0.95
0.90
0.85
0.80
0.8 1.0 1.2
T*
1.4 1.6
(a)
D c
T*
8.20
7.80
7.40
L D
7.00
0.8 1.0 1.2
T*
1.4 1.6
Figure 5.4: Area per lipid AL and (b) bilayer thickness Dc as function of reduced temperature
T ∗ for lipid type ht9.
(b)