Dissipative particle dynamics studies on the self-assembling dynamics of the peptide amphiphiles

Taiga Seki; Noriyoshi Arai; Taku Ozawa; Tomoko Shimada; Kenji Yasuoka; Atsushi Hotta

doi:10.1557/proc-1135-cc06-02

Dissipative particle dynamics studies on the self-assembling dynamics of the peptide amphiphiles

Taiga Seki, Noriyoshi Arai, Taku Ozawa, Tomoko Shimada, Kenji Yasuoka, Atsushi Hotta

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A coarse-grained model of peptide amphiphiles (PA) dissolved in aqueous solution was presented, where the effects of PA concentration, temperature and shear stress upon the selfassembly of PA were numerically studied by dissipative particle dynamics (DPD) simulation. We technically investigate the repulsion parameter a_hw which indicates the repulsion force between the hydrophilic head of PA and water molecules, hence, at the same time, indicating the change in temperature. It was found that a_hw played an important role in the self-assembly dynamics and in the resulting micro-structures of PA. By imposing shear strain on the simulation system, the formation of wormlike PA micelles was accelerated. The simulation results were in good agreement with our previous experimental results and the mechanism of shear-induced transition was proposed.

Original language	English
Title of host publication	Design, Fabrication, and Self Assembly of "Patchy" and Anisometric Particles
Publisher	Materials Research Society
Pages	143-149
Number of pages	7
ISBN (Print)	9781615677689
DOIs	https://doi.org/10.1557/proc-1135-cc06-02
Publication status	Published - 2008
Event	2008 MRS Fall Meeting - Boston, MA, United States Duration: 2008 Dec 1 → 2008 Dec 5

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1135
ISSN (Print)	0272-9172

Other

Other	2008 MRS Fall Meeting
Country/Territory	United States
City	Boston, MA
Period	08/12/1 → 08/12/5

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1557/proc-1135-cc06-02

Cite this

Seki, T., Arai, N., Ozawa, T., Shimada, T., Yasuoka, K., & Hotta, A. (2008). Dissipative particle dynamics studies on the self-assembling dynamics of the peptide amphiphiles. In Design, Fabrication, and Self Assembly of "Patchy" and Anisometric Particles (pp. 143-149). (Materials Research Society Symposium Proceedings; Vol. 1135). Materials Research Society. https://doi.org/10.1557/proc-1135-cc06-02

Dissipative particle dynamics studies on the self-assembling dynamics of the peptide amphiphiles. / Seki, Taiga; Arai, Noriyoshi; Ozawa, Taku et al.

Design, Fabrication, and Self Assembly of "Patchy" and Anisometric Particles. Materials Research Society, 2008. p. 143-149 (Materials Research Society Symposium Proceedings; Vol. 1135).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Seki, T, Arai, N, Ozawa, T, Shimada, T, Yasuoka, K & Hotta, A 2008, Dissipative particle dynamics studies on the self-assembling dynamics of the peptide amphiphiles. in Design, Fabrication, and Self Assembly of "Patchy" and Anisometric Particles. Materials Research Society Symposium Proceedings, vol. 1135, Materials Research Society, pp. 143-149, 2008 MRS Fall Meeting, Boston, MA, United States, 08/12/1. https://doi.org/10.1557/proc-1135-cc06-02

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Dissipative particle dynamics studies on the self-assembling dynamics of the peptide amphiphiles

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