Chiral Mesophases of DNA

Details Chiral Mesophases of DNA Chiral Mesophases of DNA

1998-12-08

arxiv.org/abs/cond-mat/9812128v1

International Journal of Engineering Science 38 (2000) 1025

Physics

Condensed Matter

Soft Condensed Matter

8 pages, harvmac, 4 postscript figures. To appear in the Proceedings of the 35th Annual Technical Meeting of the Society of En

Scientific paper

In the hexagonal columnar phase of chiral polymers a bias towards cholesteric twist competes with braiding along an average direction. When the chirality is strong, topological defects proliferate, leading to either a tilt grain boundary phase or a new ``moire state'' with twisted bond order. This moire phase can melt leading to a new phase: the chiral hexatic. I will discuss some recent experimental results from the NIH on DNA liquid crystals in the context of these theories.

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