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Science 21 February 2003:
Vol. 299. no. 5610, p. 1145
DOI: 10.1126/science.299.5610.1145a
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This Week in Science

The assembly of liquid crystals, surfactants, and block copolymers into organized domains has received a lot of attention because of the variety of structures that form and because of the transitions between different structures driven by small changes in chemistry or concentration. Ungar et al. (p. 1208) have looked at dendrimer-shaped objects and find a liquid crystal phase with tetragonal symmetry. They correlate changes that they see in packing with changes in the chemistry of the exterior units of the dendrimers.

Figure 1
CREDIT: UNGAR ET AL.




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