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Related Concept Videos

Atomic Force Microscopy01:08

Atomic Force Microscopy

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.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
Studying the Cytoskeleton01:17

Studying the Cytoskeleton

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: Jun 1, 2026

Measuring the Mechanical Properties of Living Cells Using Atomic Force Microscopy
08:41

Measuring the Mechanical Properties of Living Cells Using Atomic Force Microscopy

Published on: June 27, 2013

Physico-mechanical characterisation of cells using atomic force microscopy - Current research and methodologies.

Hayden K Webb1, Vi Khanh Truong, Jafar Hasan

  • 1Faculty of Life and Social Sciences, Swinburne University of Technology, PO Box 218, Hawthorn, Vic 3122, Australia.

Journal of Microbiological Methods
|June 14, 2011
PubMed
Summary

Atomic force microscopy (AFM) offers detailed topographical and mechanical insights into cell surfaces and extracellular materials. This technique is increasingly vital in biological sciences for analyzing cellular properties and interactions.

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Area of Science:

  • Biophysics
  • Cell Biology
  • Materials Science

Background:

  • Atomic force microscopy (AFM) has transitioned from materials science to significant applications in biological sciences.
  • AFM excels at providing high-resolution topographical data of cell surfaces and extracellular matrices.
  • It offers crucial insights into the mechanical properties of cells, including hardness and elasticity.

Purpose of the Study:

  • To review current AFM techniques employed in cell biology research.
  • To describe novel research methodologies where AFM is integral.
  • To highlight AFM's expanding role in understanding cellular structures and functions.

Main Methods:

  • Utilizing AFM for topographical imaging of prokaryotic and eukaryotic cells.
  • Applying AFM to quantify cell mechanical properties (hardness, elasticity).
  • Employing AFM to measure inter- and intra-molecular forces (adhesion, repulsion).
  • Combining AFM with fluorescence microscopy and Raman spectroscopy for chemical identification.

Main Results:

  • AFM reveals detailed surface topography of cells and their secreted materials.
  • Mechanical properties like cell hardness and elasticity can be accurately measured.
  • Adhesion, attraction, and repulsion forces at cellular and molecular levels are quantifiable.
  • Multimodal AFM approaches enable chemical characterization of surface structures.

Conclusions:

  • AFM is a versatile tool for advanced cell biology studies.
  • Its ability to probe mechanical properties and molecular forces is crucial for biological research.
  • Integrated AFM techniques offer comprehensive analysis of cellular systems.