LOCAL UNBINDING OF PINCHED MEMBRANES

被引:46
作者
BARZIV, R [1 ]
MENES, R [1 ]
MOSES, E [1 ]
SAFRAN, SA [1 ]
机构
[1] WEIZMANN INST SCI, DEPT MAT & INTERFACES, IL-76100 REHOVOT, ISRAEL
关键词
D O I
10.1103/PhysRevLett.75.3356
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Loosely bound membranes exhibit an unusual elastic response when pinched together by optical tweezers, locally unbinding to a large intermembrane distance. Tweezing a stack of many bound membranes produces extreme local swelling in the vicinity of the tweezing point. We introduce a model that incorporates bending elasticity, fluctuations, and intermembrane interactions to calculate the membrane profiles subject to a local pinch. Theoretically, we find strongly overshooting profiles in agreement with experiment. We predict scaling behavior of the overshoot with the pinch strength and size.
引用
收藏
页码:3356 / 3359
页数:4
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