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Related Concept Videos

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: Jun 12, 2026

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
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Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers

Published on: June 20, 2019

Monodisperse cylindrical micelles by crystallization-driven living self-assembly.

Joe B Gilroy1, Torben Gädt, George R Whittell

  • 1School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom.

Nature Chemistry
|June 24, 2010
PubMed
Summary

Researchers created uniform, non-spherical nanocylinders using block copolymer micelles. This breakthrough enables precise control over nanostructure length, opening new possibilities for advanced materials.

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Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
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Facile Synthesis of Worm-like Micelles by Visible Light Mediated Dispersion Polymerization Using Photoredox Catalyst

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Area of Science:

  • Soft matter physics
  • Materials science
  • Nanotechnology

Background:

  • Non-spherical, monodisperse nanostructures are rare outside biology.
  • Controlled synthesis of uniform nanostructures is a significant challenge.

Purpose of the Study:

  • To develop a method for creating highly monodisperse, non-spherical nanostructures.
  • To achieve precise control over the dimensions of these nanostructures.

Main Methods:

  • Utilized uniform crystallite seeds (approx. 20 nm) as initiators.
  • Employed crystallization-driven living self-assembly of block copolymer unimers.
  • Controlled nanocylinder length via the unimer-to-seed ratio.

Main Results:

  • Successfully formed highly monodisperse cylindrical block copolymer micelles.
  • Achieved precise control over nanocylinder length (200 nm to 2 microm).
  • Demonstrated distinct liquid-crystalline alignment behavior in nanocylinders of varying lengths.

Conclusions:

  • Developed a novel method for synthesizing uniform, non-spherical nanocylinders.
  • The method allows for tunable length control, crucial for material properties.
  • These nanostructures exhibit controllable liquid-crystalline behavior.