Novel Cholesteric Phase in Dispersions of Nucleic Acids due to Polymeric Chelate Bridges.
Physics, Moscow, RussiaWe consider cholesteric liquid-crystalline DNA dispersions, and show thatpolymeric (Dau-Cu) complexes, the so-called bridges, between pairs of DNA molecules may generate a super liquid-crystalline structure (BR-phase), charachterized by a soliton lattice of the spatial distribution of theorder parameter. The BR-phase could have a layered spatial structure andan abnormal optical activity that could have a bearing upon the intenseCD-band observed in DNA-dispersions.
Department of Mechanics and Mathematics, Moscow University, Moscow, 119899 Russia.
V L
VL
Golo
E I
EI
Kats
Y S
YS
Volkov
V I
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Salyanov
Y M
YM
Yevdokimov
DNA; dichroism; liquid crystal