Extracting Aggregation Free Energies of Mixed Clusters from Simulations of Small Systems: Application to Ionic Surfactant Micelles

2017 ◽  
Vol 13 (11) ◽  
pp. 5195-5206 ◽  
Author(s):  
X. Zhang ◽  
L. A. Patel ◽  
O. Beckwith ◽  
R. Schneider ◽  
C. J. Weeden ◽  
...  
Keyword(s):  
Ionic Surfactant ◽  
Free Energies ◽  
Surfactant Micelles ◽  
Small Systems ◽  
Mixed Clusters

Structure, thermodynamics and dynamics of the isotropic phase of spherical non-ionic surfactant micelles

2013 ◽  
Vol 393 ◽  
pp. 161-173 ◽  
Author(s):  
Kévin Tse-Ve-Koon ◽  
Nicolas Tremblay ◽  
Doru Constantin ◽  
Éric Freyssingeas
Keyword(s):  
Isotropic Phase ◽  
Ionic Surfactant ◽  
Surfactant Micelles ◽  
Thermodynamics And Dynamics

scholarly journals Dodecagonal quasicrystals of oil-swollen ionic surfactant micelles

2021 ◽  
Vol 118 (31) ◽  
pp. e2101598118
Author(s):  
Ashish Jayaraman ◽  
Carlos M. Baez-Cotto ◽  
Tyler J. Mann ◽  
Mahesh K. Mahanthappa
Keyword(s):  
Self Assembly ◽  
Noncovalent Interactions ◽  
Rotational Symmetry ◽  
Three Dimensional ◽  
Ionic Surfactant ◽  
Surfactant Micelles ◽  
Σ Phase ◽  
Periodic Arrays ◽  
Spherical Micelles ◽  
Block Complexity

A delicate balance of noncovalent interactions directs the hierarchical self-assembly of molecular amphiphiles into spherical micelles that pack into three-dimensional periodic arrays, which mimic intermetallic crystals. Herein, we report the discovery that adding water to a mixture of an ionic surfactant and n-decane induces aperiodic ordering of oil-swollen spherical micelles into previously unrecognized, aqueous lyotropic dodecagonal quasicrystals (DDQCs), which exhibit local 12-fold rotational symmetry and no long-range translational order. The emergence of these DDQCs at the nexus of dynamically arrested micellar glasses and a periodic Frank–Kasper (FK) σ phase approximant sensitively depends on the mixing order of molecular constituents in the assembly process and on sample thermal history. Addition of n-decane to mixtures of surfactant and water instead leads only to periodic FK A15 and σ approximants with no evidence for aperiodic order, while extended ambient temperature annealing of the DDQC also reveals its transformation into a σ phase. Thus, these lyotropic DDQCs are long-lived metastable morphologies, which nucleate and grow from a stochastic distribution of micelle sizes formed by abrupt segregation of varied amounts of oil into surfactant micelles on hydration. These findings indicate that molecular building block complexity is not a prerequisite for the formation of aperiodic supramolecular order, while also establishing the generic nature of quasicrystalline states across metal alloys and self-assembled micellar materials.

Counter Ion Release of Ionic Surfactant Micelles Induced by Solubilized Amphiphiles: Size Effect of a Polar Head Group

2002 ◽  
Vol 75 (9) ◽  
pp. 1967-1972 ◽  
Author(s):  
Masahiro Manabe ◽  
Miharu Kaneko ◽  
Takako Miura ◽  
Chinami Akiyama ◽  
Hideo Kawamura ◽  
...  
Keyword(s):  
Size Effect ◽  
Head Group ◽  
Ionic Surfactant ◽  
Polar Head Group ◽  
Ion Release ◽  
Surfactant Micelles ◽  
Polar Head ◽  
Counter Ion

Determination of the aggregation number and charge of ionic surfactant micelles from the stepwise thinning of foam films

2012 ◽  
Vol 183-184 ◽  
pp. 55-67 ◽  
Author(s):  
Svetoslav E. Anachkov ◽  
Krassimir D. Danov ◽  
Elka S. Basheva ◽  
Peter A. Kralchevsky ◽  
Kavssery P. Ananthapadmanabhan
Keyword(s):  
Aggregation Number ◽  
Ionic Surfactant ◽  
Surfactant Micelles ◽  
Foam Films

Polyelectrolyte binding to ionic surfactant micelles observed using deuterium NMR

Langmuir ◽  
1993 ◽  
Vol 9 (2) ◽  
pp. 381-384 ◽  
Author(s):  
P. M. Macdonald ◽  
D. Staring ◽  
Y. Yue
Keyword(s):  
Ionic Surfactant ◽  
Deuterium Nmr ◽  
Surfactant Micelles
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