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Studies of force-regulated processes in living cells by Magnetic tweezers (MT) (CAT#: STEM-MB-1239-WXH)

Introduction

Living cells respond to a wide variety of mechanical stimuli, including stretch, fluid flow, osmotic potential, and the stiffness of their surroundings. More subtly, living tissues are remarkably sensitive to the mechanical cues provided by their surroundings. Stem cells grown on soft surfaces are primed to differentiate and form correspondingly soft tissues such as fat or nervous tissue, whereas cells grown on harder surfaces differentiate to form bone cells.1 On longer length scales, the growth and development of our organs require precise changes in shape, with tightly controlled tissue-level mechanical stresses and strains.




Principle

Magnetic tweezers (MT) are scientific instruments for the manipulation and characterization of biomolecules or polymers. These apparatus exert forces and torques to individual molecules or groups of molecules. It can be used to measure the tensile strength or the force generated by molecules.

Applications

Study of mechanical properties of biological macromolecules like DNA or proteins in single-molecule experiments.
Study of the rheology of soft matter.
Study of force-regulated processes in living cells.

Procedure

1.Sample preparation
2.Force Calibration
3.Measurement
4.Analysis

Materials

Magnetic tweezers
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