The role of geometric constraints in amphiphilic self-assembly: A Brownian dynamics study

作者: Geuorgui K. Bourov , Aniket Bhattacharya

DOI: 10.1063/1.1614210

关键词: Brownian motionSelf-assemblyComputational chemistryChemical physicsHead (vessel)MicelleCluster (physics)Critical micelle concentrationBrownian dynamicsMolecular dynamicsChemistry

摘要: We use a stochastic molecular dynamics simulation method to investigate the effect of optimal head group area in amphiphilic self-assembly. For fixed tail geometry, we choose several sizes effective and carry out detailed study how this affects critical micelle concentration (CMC), cluster distribution, shape micelles for different concentrations temperature. find that with an increase area, CMC is attained at larger free chains all temperatures. Likewise, given concentration, amphiphiles exhibit sharper distribution tendency form more spherical micelles. Our shows way control size can have potential impact on synthesis nano-structures through surfactant mediated templating methods.

参考文章(31)
David R. Rector, Frank Van Swol, J.R. Henderson, Simulation of surfactant solutions Molecular Physics. ,vol. 82, pp. 1009- 1031 ,(1994) , 10.1080/00268979400100724
Aniket Bhattacharya, S D Mahanti, Critical micelle concentration in three-dimensional lattice models of amphiphiles Journal of Physics: Condensed Matter. ,vol. 13, ,(2001) , 10.1088/0953-8984/13/41/101
David Brindle, Christopher M. Care, Phase diagram for the lattice model of amphiphile and solvent mixtures by Monte Carlo simulation Journal of the Chemical Society, Faraday Transactions. ,vol. 88, pp. 2163- 2166 ,(1992) , 10.1039/FT9928802163
Stephen Bogusz, Richard M. Venable, Richard W. Pastor, Molecular Dynamics Simulations of Octyl Glucoside Micelles: Dynamic Properties Journal of Physical Chemistry B. ,vol. 105, pp. 8312- 8321 ,(2001) , 10.1021/JP004475O
Jacob N. Israelachvili, D. John Mitchell, Barry W. Ninham, Theory of self-assembly of hydrocarbon amphiphiles into micelles and bilayers Journal of the Chemical Society, Faraday Transactions. ,vol. 72, pp. 1525- 1568 ,(1976) , 10.1039/F29767201525
Prabal K. Maiti, Yves Lansac, Matthew A. Glaser, Noel A. Clark, Yannick Rouault, Self-Assembly in Surfactant Oligomers: A Coarse-Grained Description through Molecular Dynamics Simulations Langmuir. ,vol. 18, pp. 1908- 1918 ,(2002) , 10.1021/LA0111203
Türkan Haliloǧlu, Wayne L. Mattice, Monte Carlo lattice simulation of the interchange of chains between micelles of diblock copolymers Chemical Engineering Science. ,vol. 49, pp. 2851- 2857 ,(1994) , 10.1016/0009-2509(94)E0103-W
Américo T. Bernardes, Vera B. Henriques, Paulo M. Bisch, Monte Carlo simulation of a lattice model for micelle formation Journal of Chemical Physics. ,vol. 101, pp. 645- 650 ,(1994) , 10.1063/1.468120
Gary S. Grest, Kurt Kremer, Molecular dynamics simulation for polymers in the presence of a heat bath. Physical Review A. ,vol. 33, pp. 3628- 3631 ,(1986) , 10.1103/PHYSREVA.33.3628