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

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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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Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

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Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
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Related Experiment Video

Updated: Jun 1, 2025

Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy
09:20

Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy

Published on: October 4, 2010

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Probing living cell dynamics and molecular interactions using atomic force microscopy.

David Alsteens1,2

  • 1Louvain Institute of Biomolecular Science and Technology, Université catholique de Louvain, Croix du sud 4-5, L7.07.07, 1348 Louvain-la-Neuve, Belgium.

Biophysical Reviews
|January 20, 2025
PubMed
Summary
This summary is machine-generated.

Atomic force microscopy (AFM) reveals cell surface mechanics and molecular interactions, like virus-host binding. This technique offers insights into cellular processes and viral entry mechanisms at the single-molecule level.

Keywords:
Atomic force microscopyDynamic force spectroscopyInteractionsLigand-receptorSingle-molecule force spectroscopy

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Last Updated: Jun 1, 2025

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Measuring the Mechanical Properties of Living Cells Using Atomic Force Microscopy
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Area of Science:

  • Biophysics
  • Cell Biology
  • Nanotechnology

Background:

  • Atomic force microscopy (AFM) is a key technology for single-molecule analysis.
  • Understanding cellular and molecular processes requires studying interactions at the nanoscale.

Purpose of the Study:

  • To review advancements in AFM for biological applications.
  • To highlight AFM's capability in probing nanomechanical properties and dynamic interactions on living cells.

Main Methods:

  • AFM for measuring forces and mapping molecular interactions.
  • In situ analysis under near-physiological conditions.

Main Results:

  • AFM captures nanomechanical properties of cell surfaces.
  • AFM probes dynamic interactions, including virus-host binding.
  • AFM provides insights into cell surface organization and receptor functionality.

Conclusions:

  • AFM is crucial for understanding receptor-ligand dynamics and viral entry.
  • AFM advances the study of cellular and molecular processes at the single-molecule level.