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Related Concept Videos

Atomic Force Microscopy01:08

Atomic Force Microscopy

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Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
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The cytoskeletal architecture can be studied using different microscopic and biochemical techniques. Electron microscopy was instrumental in discovering the cytoskeletal architecture around the 1960s, which allowed obtaining structural information at a high-resolution level. However, the sample preparation procedure often limits this ability in biological samples. Several protocols have been developed over the years to optimize sample preparation. In one of the protocols known as rotary...
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Related Experiment Video

Updated: Sep 21, 2025

Measuring the Mechanical Properties of Living Cells Using Atomic Force Microscopy
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Measuring Nuclear Mechanics with Atomic Force Microscopy.

Ália Dos Santos1, Florian Rehfeldt2, Christopher P Toseland3

  • 1Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK.

Methods in Molecular Biology (Clifton, N.J.)
|May 31, 2022
PubMed
Summary
This summary is machine-generated.

Atomic force microscopy was used to measure the mechanical properties of the mammalian cell nucleus. This technique allows for analysis under various conditions, including in live cells and purified nuclei.

Keywords:
Atomic force microscopyMechanicsMechanobiologyNucleusYoung’s modulus

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Area of Science:

  • Biophysics
  • Cell Biology
  • Materials Science

Background:

  • Atomic force microscopy (AFM) is a powerful technique for nanoscale imaging and property measurement.
  • The mechanical properties of the cell nucleus are crucial for understanding cellular function and response to stimuli.
  • Quantifying nuclear mechanics provides insights into cellular health and disease.

Purpose of the Study:

  • To apply AFM for measuring the effective Young's elastic modulus (E*) of the mammalian nucleus.
  • To investigate nuclear mechanics in live cells under different experimental conditions.
  • To analyze the isolated mechanical response of purified nuclei.

Main Methods:

  • Utilized atomic force microscopy to probe the mechanical properties of mammalian cell nuclei.
  • Developed and applied three distinct experimental approaches to assess nuclear mechanics.
  • Investigated mechanics in fully adhered cells, initially adhered cells lacking cytoskeleton, and purified nuclei.

Main Results:

  • Successfully measured the effective Young's elastic modulus (E*) of the mammalian nucleus using AFM.
  • Demonstrated the ability to probe nuclear mechanics under varying cellular conditions.
  • Obtained data on the isolated mechanical response of purified nuclei.

Conclusions:

  • AFM is a versatile tool for characterizing the mechanical properties of the mammalian nucleus.
  • The presented methods allow for comprehensive analysis of nuclear mechanics in different cellular states.
  • This study provides a foundation for further research into the role of nuclear mechanics in cellular processes.