Shear field mapping in actin networks by using magnetic tweezers

被引：2

作者：

Schmidt, FG ^{[1
]}

Ziemann, F ^{[1
]}

Sackmann, E ^{[1
]}

机构：

[1] TECH UNIV MUNICH, PHYS DEPT E22, BIOPHYS GRP, D-85747 GARCHING, GERMANY

来源：

EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS | 1996年 / 24卷 / 05期

关键词：

biogels; actin networks; magnetic tweezers; microrheology of polymer networks; cytoskeleton viscoelasticity;

D O I：

暂无

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

An improved magnetic bead microrheometer based on phase contrast microscopy allowing high resolution measurements of local deformations within macromolecular networks is applied to study local viscoelastic properties of cross-linked actin networks. By embedding nonmagnetic colloidal beads as probes into the networks, the spatial variation of the strain field within cross-linked actin networks can be mapped, Moreover, the Poisson ratio and shear modulus can be measured locally.

引用

页码：348 / 353

页数：6

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