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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.
The AFM Probe
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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: May 2, 2026

Investigating Receptor-ligand Systems of the Cellulosome with AFM-based Single-molecule Force Spectroscopy
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Investigating biomolecular recognition at the cell surface using atomic force microscopy.

Congzhou Wang1, Vamsi K Yadavalli1

  • 1Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA.

Micron (Oxford, England : 1993)
|March 8, 2014
PubMed
Summary

Atomic force microscopy (AFM)-based force spectroscopy measures biomolecular interaction forces on cell surfaces. This technique provides biophysical insights into cell surface macromolecule recognition and interactions.

Keywords:
Atomic force microscopyBiomolecular recognitionCell surfaceForce spectroscopy

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Area of Science:

  • Biophysics
  • Cell Biology
  • Surface Science

Background:

  • Understanding biomolecular recognition on cell surfaces is crucial for biological processes.
  • Force spectroscopy is a dynamic analytical technique for measuring molecular and cellular interactions.
  • Atomic force microscopy (AFM) offers high resolution in physiological environments for probing cell surfaces.

Purpose of the Study:

  • To review AFM-based force spectroscopy for probing cell surfaces.
  • To summarize recent progress in understanding cell surface macromolecule interactions.
  • To discuss challenges and future prospects of AFM force spectroscopy on cell surfaces.

Main Methods:

  • Utilizing atomic force microscopy (AFM) for force spectroscopy.
  • Measuring biomolecular interaction forces on cell surfaces.
  • Operating under near physiological conditions with high force and lateral resolution.

Main Results:

  • AFM-based force spectroscopy provides biophysical insights into cell surface interactions.
  • The technique enables measurement of forces driving biomolecular recognition on dynamic cell surfaces.
  • Recent studies have advanced understanding of macromolecule recognition at the cell surface.

Conclusions:

  • AFM-based force spectroscopy is a powerful tool for studying cell surface interactions.
  • The technique has significantly contributed to understanding biomolecular recognition.
  • Future applications hold promise for further insights into cell surface dynamics.