Magnetic-field-induced deformation of lipid membranes

被引:8
作者
Kurashima, H
Abe, H
Ozeki, S
机构
[1] Shinshu Univ, Fac Sci, Dept Chem, Nagano 3908621, Japan
[2] Natl Res Inst Met, Tsukuba, Ibaraki 3058565, Japan
关键词
D O I
10.1080/00268970110118259
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The substantial effects of relatively low, steady magnetic fields less than 0.5 T up to high magnetic fields up to 30 T on the membrane potential and resistance of black lipid membranes of didodecyl phosphite and dipalmitoylphosphatidylcholine (DPPC) are presented. Also, the magnetic-field-induced fusion and division of DPPC liposomes are demonstrated. Such significant magnetoresponses should result in the magnetic orientation of the lipid molecules and associated undulation of the membranes. Thus, the addition to membranes of diamagnetic aromatics having a large magnetic anisotropy enhanced the magnetoresponses: larger changes in membrane potential and resistance and a lower shift of the onset magnetic-field, with abrupt changes in liposome sizes and membrane potential.
引用
收藏
页码:1445 / 1450
页数:6
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