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Micelles01:30

Micelles

Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...

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Related Experiment Video

Updated: Jul 4, 2026

Crystallization of Membrane Proteins in Lipidic Mesophases
11:53

Crystallization of Membrane Proteins in Lipidic Mesophases

Published on: March 28, 2011

Micellar crystals in solution from molecular dynamics simulations.

J A Anderson1, C D Lorenz, A Travesset

  • 1Department of Physics and Astronomy and Ames Laboratory, Iowa State University, Ames, IA 50011, USA. joaander@iastate.edu

The Journal of Chemical Physics
|June 6, 2008
PubMed
Summary
This summary is machine-generated.

Triblock polymers form ordered micellar crystals through polymer transfer. Body-centered cubic lattices are favored near melting, while face-centered cubic lattices appear at lower temperatures for specific polymer structures.

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Related Experiment Videos

Last Updated: Jul 4, 2026

Crystallization of Membrane Proteins in Lipidic Mesophases
11:53

Crystallization of Membrane Proteins in Lipidic Mesophases

Published on: March 28, 2011

From Constructs to Crystals – Towards Structure Determination of β-barrel Outer Membrane Proteins
09:55

From Constructs to Crystals – Towards Structure Determination of β-barrel Outer Membrane Proteins

Published on: July 4, 2016

Realistic Membrane Modeling Using Complex Lipid Mixtures in Simulation Studies
07:31

Realistic Membrane Modeling Using Complex Lipid Mixtures in Simulation Studies

Published on: September 1, 2023

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Computational Physics

Background:

  • Amphiphilic triblock polymers self-assemble into micelles, shielding insoluble blocks from solvents.
  • Increased polymer concentration leads to micellar aggregation and crystalline gel formation.

Purpose of the Study:

  • Investigate the dynamics and equilibrium properties of triblock copolymer micellar crystals.
  • Utilize molecular dynamics simulations to understand self-assembly and crystal formation mechanisms.

Main Methods:

  • Employed molecular dynamics simulations to study triblock polymer behavior.
  • Analyzed polymer transfer between micelles using transition state theory.
  • Examined lattice structures (bcc, fcc) under varying kinetic temperatures.

Main Results:

  • Micellar crystal equilibration and formation occur via polymer transfer between micelles.
  • Body-centered cubic (bcc) lattices are favored near the disordered (melting) transition for all studied triblocks.
  • Face-centered cubic (fcc) lattices are observed at lower kinetic temperatures, particularly for triblocks with short hydrophilic blocks.

Conclusions:

  • The study provides theoretical insights into the self-assembly and crystallization of triblock polymer micelles.
  • Findings suggest implications for experimental systems, especially Pluronic polymers.
  • Understanding lattice formation dynamics is crucial for designing advanced polymer materials.