Related Experiment Video
Updated: Aug 21, 2026

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
Published on: September 7, 2018
[The interaction between two charged rods in an electrolyte solution]
Abstract:
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.
Related Concept Videos
The Electrical Double Layer
Electrochemical Systems
Electrolysis
Processes at Electrodes
Theory of Strong Electrolytes
Electrochemical Cells

