[Complexes of gadolinium with linear and liquid-crystalline forms of DNA].
The binding of Gd3+ ions to linear double-stranded DNA molecules in water-salt solutions or in liquid-crystalline dispersions is accompanied by sharp changes in their optical and X-ray characteristics. Depending on the initial conditions of complex formation, the binding of Gd3+ ions either to DNA bases or phosphate groups occurs, which leads to changes in the properties of the liquid-crystalline dispersions. The packing of neighboring DNA molecules in particles of the liquid-crystalline dispersion of the complex DNA-Gd3+ depends strongly on the concentration of Gd3+ ions. This process is accompanied by a decrease in the amplitude of Bragg's reflection maximum. The unique properties of the developed material open the possibilities for its practical use.
Salianov
V I
VI
Evseev
A I
AI
Popenko
V I
VI
Gasanov
A A
AA
Dembo
K A
KA
Kondrashina
O V
OV
Shtykova
Iu V
IuV
Evdokimov
Iu M
IuM
D018360:Crystallography, X-Ray; D004247:DNA / Q000737:chemistry*; D005682:Gadolinium / Q000737:chemistry*; D050866:Liquid Crystals / Q000737:chemistry*; D009690:Nucleic Acid Conformation; D012996:Solutions / Q000737:chemistry
D012996:Solutions; D004247:DNA; D005682:Gadolinium