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Related Experiment Videos

Atomic force microscopy of virus shells.

Francisco Moreno-Madrid1, Natalia Martín-González1, Aida Llauró2

  • 1Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Madrid 28044, Spain.

Biochemical Society Transactions
|April 15, 2017
PubMed
Summary

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This summary is machine-generated.

Atomic force microscopy (AFM) images and characterizes individual protein shells, like viruses, in liquid. This technique allows for manipulation and detailed analysis of their physical and chemical properties, including genome release.

Area of Science:

  • Biophysics
  • Nanotechnology
  • Microscopy

Background:

  • Microscopy utilizes probes like photons and electrons to characterize small objects.
  • Atomic force microscopy (AFM) employs a nanometric tip on a microcantilever to probe specimens, enabling nanometric resolution imaging in liquid environments.

Purpose of the Study:

  • To review methods for adsorbing protein shells onto surfaces.
  • To describe various AFM approaches for studying individual protein cages.
  • To explain AFM's utility in characterizing physicochemical and mechanical properties of protein shells.

Main Methods:

  • Atomic force microscopy (AFM) for imaging and spectroscopy.
  • Surface adsorption techniques for protein shells.
  • Combination of AFM with fluorescence for dynamic studies.
Keywords:
nanoindentationphysical virologyprotein shellsvirus mechanics

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Main Results:

  • AFM provides nanometric resolution images of protein shells in liquid.
  • AFM enables manipulation and characterization of protein cage physicochemical properties.
  • AFM combined with fluorescence monitors genome release from viral shells during mechanical unpacking.

Conclusions:

  • AFM is a versatile tool for studying individual protein shells at the nanoscale.
  • AFM allows for detailed investigation of mechanical and electrostatic properties.
  • AFM-fluorescence integration offers insights into dynamic processes like viral genome release.