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600
60
500
58
400
56
300
54
52
200
50
100
0
1 2 3
Na-DFC concentration (wt %)
4
5
Figure 8.7
Lattice parameter (
) and the domain length (
) obtained from the SAXS
measurements versus solubilized Na-DFC concentration at the H
II
mesophases (Cohen-
Avrahami et al., 2011 ).
62
60
58
56
54
52
0
1
2 3
CPP concentration (wt %)
4
5
6
Figure 8.8
Lattice parameter, calculated from the SAXS measurements, versus
NONA (
) and PEN (
) concentration in the mesophase (Cohen-Avrahami et al.,
2011 ).
repulsion tension between the carbon atoms at the head groups, and enabled
the formation of a tighter structure with higher curvature.
Each CPP was separately solubilized within the H
II
for identifi cation of its
specifi c location and chemical interactions within the mesophase. The SAXS
measurements indicated two trends in the effect of the peptides. Up to 2 wt %
of PEN solubilization and initial shrinkage of the aqueous cylinders to a
minimum of 53.4
0.5 Å was detected. With increasing solubilization loads of
PEN to 5 wt %, the shrinkage changed, and a swelling effect of the cylinders
was detected until their diameter reached their original radius of 57.9
±
±
0.5 Å
(Fig. 8.8 ).
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