Multicontinuous cubic membranes

Figure 7.5 A multicontinuous G-PCS (the gyroid) differei tiating sieve-elements (see cdso Fig. 7.6). (a) A [211] projection of a double bilayer G-PCS. The match of the theoretical projection is excellent (as well as the correlation between the Fourier transforms (a (experiment) and a (theory)) and it is eeisily seen that a single bilayer G-PCS does not account for the experimental projection (see (c)). (b) Serial section of (a). Note the apparent pleomorphic behaviour of the cubic membrane in (b), which shows co-existing D- and G-morphologies, related by an intersection-free, and thus, topologically constrained transformation, (c bottom) Computer generated projections of the single G [211] and the double bilayer G2 [211] projections. Figures (a) and (b) are modified from [32], with permission.

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