Related Experiment Video
Updated: Jun 13, 2026

Enhanced Oil Recovery using a Combination of Biosurfactants
Published on: June 3, 2022
Wormlike micelles and solution properties of a C22-tailed amidosulfobetaine surfactant
Zonglin Chu1, Yujun Feng, Xin Su
1Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, PR China.
Abstract:
Wormlike micelles have been observed and explained in a wide variety of different types of surfactants except sulfobetaine ones. Here, we first report branched worms formed by a C22-tailed amidosulfobetaine surfactant-3-(N-erucamidopropyl-N,N-dimethyl ammonium) propane sulfonate (EDAS). Increasing EDAS concentration in the semidilute region increases the viscosity by several orders of magnitude and forms viscoelastic micellar solution of entangled and branched worms. The intermicellar branching is proved by rheological methods and Cryo-TEM observation. Besides, the rheological experiments indicate that EDAS worms show some advantages such as low overlapping concentration, insensitive to inorganic salt, stable over the whole pH range.
Related Concept Videos
Micelles
Surface Active Agents
Colloids
Solubility
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules, atoms, and/or ions)...
Detergent Purification of Membrane Proteins

