Shape transformations of toroidal vesicles

Hiroshi Noguchi, Ai Sakashita, Masayuki Imai

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Morphologies of genus-1 and 2 toroidal vesicles are studied numerically by dynamically triangulated membrane models and experimentally by confocal laser microscopy. Our simulation results reproduce shape transformations observed in our experiments well. At large reduced volumes of the genus-1 vesicles, obtained vesicle shapes agree with the previous theoretical prediction, in which axisymmetric shapes are assumed: double-necked stomatocyte, discoidal toroid, and circular toroid. However, for small reduced volumes, it is revealed that a non-axisymmetric discoidal toroid and handled discocyte exist in thermal equilibrium in the parameter range, in which the previous theory predicts axisymmetric discoidal shapes. Polygonal toroidal vesicles and subsequent budding transitions are also found. The entropy caused by shape fluctuations slightly modifies the stability of the vesicle shapes. This journal is

本文言語English
ページ(範囲)193-201
ページ数9
ジャーナルSoft Matter
11
1
DOI
出版ステータスPublished - 2015 1月 7

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学

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