[The interaction between two charged rods in an electrolyte solution].
A problem on the electrostatic interaction of two homogeneously charged macromolecular rods of a finite length, submerged into an electrolyte solution was considered. An explicit expression for the energy of interaction and rotational moment as a function of the angle of rotation between the long axes of the molecules was obtained. At small angles of rotation, the expression for energy turns into the corresponding formula for parallel rods, and the rotational moment tends to zero, as it follows from geometrical considerations. The possibility is discussed whether the study is applicable to real biological systems, including liquid-crystalline dispersions of DNA.
Semenov
S V
SV
Evdokimov
Iu M
IuM
D000465:Algorithms; D004247:DNA / Q000737:chemistry; D046911:Macromolecular Substances / Q000737:chemistry*; D055672:Static Electricity; D013816:Thermodynamics
D046911:Macromolecular Substances; D004247:DNA