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题名: THEORY OF HELICAL STRUCTURES OF TILTED CHIRAL LIPID BILAYERS
作者: ZHONGCAN, OY ;  LIU, JX
刊名: PHYSICAL REVIEW A
出版日期: 1991
卷号: 43, 期号:12, 页码:6826-6836
关键词: MEMBRANES ;  SUPERSTRUCTURES ;  LECITHIN ;  TUBULES
学科分类: Physics
通讯作者: ZHONGCAN, OY , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING,PEOPLES R CHINA.
部门归属: ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
英文摘要: Analogous to the theory of cholesteric liquid crystal, a theory for tilted chiral lipid bilayers (TCLB) [briefly reported in Phys. Rev. Lett. 65, 1679 (1990)] is developed. The tilt equation and the surface-shape-equilibrium equation have been derived. Application of the theory shows that on a cylindrical surface, the field of tilt directions of TCLB molecules forms a right-handed helix with a 45-degrees gradient angle for k2 > 0 or a left-handed helix with -45-degrees gradient angle for k2 < 0, where k2 is the chiral curvature modulus of the cholesteric liquid crystal. In addition, there exists another type of helical structure that looks like twisted strips or helicoids. It is also shown that on a spherical surface, the tilt field has at least two singular points. Based on these results, the succession of transitions from a vesicular dispersion to a phase involving helical structures and then to tubes observed in several laboratories can be reasonably explained. The general formula that explains the aggregation of narrow and prolate ribbon structures is derived. By including more terms of elasticity free energy into the theory, the size of the helical structure is obtained and is shown to agree with experimental observations.
收录类别: SCI
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/11303
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
ZHONGCAN, OY,LIU, JX. THEORY OF HELICAL STRUCTURES OF TILTED CHIRAL LIPID BILAYERS[J]. PHYSICAL REVIEW A,1991,43(12):6826-6836.
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文件名: THEORY OF HELICAL STRUCTURES OF TILTED CHIRAL LIPID BILAYERS.pdf
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