Vesicle formation

Satoru Yamamoto, Taku Ozawa

Research output: Chapter in Book/Report/Conference proceedingChapter


In this chapter, the spontaneous vesicle formation of amphiphilic molecules in an aqueous solution is studied employing dissipative particle dynamics simulation. The amphiphilic molecule is represented by a coarse-grained model, which contains a hydrophilic head group and a hydrophobic tail group. Water is modeled by particles in the same way, with one particle representing a group of several H2O molecules. In the dissipative particle dynamics simulation, starting with either a randomly dispersed system or a bilayer structure of the amphiphile for the initial condition, spontaneous vesicle formation via an intermediate state of an oblate micelle or a bilayer membrane is observed. The membrane fluctuates and encapsulates water particles and then closes to form a vesicle. During the process of vesicle formation, the energy of the hydrophobic interaction between the amphiphile and water reduces. Furthermore, it is found that the aggregation process is faster for two-tailed amphiphiles than for single-tailed amphiphiles.

Original languageEnglish
Title of host publicationComputer Simulation of Polymeric Materials
Subtitle of host publicationApplications of the OCTA System
PublisherSpringer Singapore
Number of pages10
ISBN (Electronic)9789811008153
ISBN (Print)9789811008146
Publication statusPublished - Jan 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Engineering(all)
  • Materials Science(all)


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