Morphological transitions of vesicles induced by alternating electric fields
Morphological transitions of vesicles induced by alternating electric fields
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DOI：
10.1529/biophysj.108.132548
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发表时间：
2008-07-15
影响因子：
3.4
通讯作者：
Dimova, Rumiana
中科院分区：
文献类型：
--
作者：
Aranda, Said;Riske, Karin A.;Dimova, Rumiana
当经受频率范围为10（2）-10（8）Hz的交变电场时，巨大脂质囊泡获得扁球形、长球形和球形形状，并且随着改变囊泡内部和外部的水溶液的场频率和/或电导率λ（in）和λ（ex）而在这些形状之间经历形态转变。四个不同的过渡观察到的特征频率，主要取决于电导率比λ（在）/λ（ex）。文献中描述的理论模型不能描述所有这些形态学转变。
When subjected to alternating electric fields in the frequency range 10(2)-10(8) Hz, giant lipid vesicles attain oblate, prolate, and spherical shapes and undergo morphological transitions between these shapes as one varies the field frequency and/or the conductivities lambda(in) and lambda(ex) of the aqueous solution inside and outside the vesicles. Four different transitions are observed with characteristic frequencies that depend primarily on the conductivity ratio lambda(in)/lambda(ex). The theoretical models that have been described in the literature are not able to describe all of these morphological transitions.