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Atomic Force Microscopy

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.
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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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Updated: May 13, 2026

Force Spectroscopy of Single Protein Molecules Using an Atomic Force Microscope

Force Spectroscopy of Single Protein Molecules Using an Atomic Force Microscope

Published on: February 28, 2019

Atomic force microscopy for protein nanotechnology.

Dmitry V Sokolov¹

¹Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand.

Methods in Molecular Biology (Clifton, N.J.)

|March 19, 2013

Summary

This summary is machine-generated.

Atomic Force Microscopy (AFM) is a key tool for protein nanotechnology, enabling imaging and manipulation of protein nanostructures like β-lactoglobulin nanofibrils. This chapter details AFM methods and sample preparation for advanced nanoscale research.

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Last Updated: May 13, 2026

Force Spectroscopy of Single Protein Molecules Using an Atomic Force Microscope

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Visualization of Recombinant DNA and Protein Complexes Using Atomic Force Microscopy

Visualization of Recombinant DNA and Protein Complexes Using Atomic Force Microscopy

Published on: July 18, 2011

Area of Science:

Protein nanotechnology
Surface science
Nanotechnology

Background:

Atomic Force Microscopy (AFM) is crucial for investigating nanoscale biological structures.
Understanding protein self-assembly and nanostructure properties is vital in nanotechnology.

Purpose of the Study:

To introduce Atomic Force Microscopy (AFM) as a powerful technique in protein nanotechnology.
To provide a review of AFM applications including imaging, mapping, and spectroscopy of protein samples.
To demonstrate AFM-based nanostructure manipulation.

Main Methods:

AFM imaging, mapping, and spectroscopy were employed.
Sample preparation protocols for β-lactoglobulin nanofibrils and multiwall carbon nanotubes (MWCNT) were established.
AFM operation was exemplified using MWCNT and the NanoScope E instrument in contact mode.

Main Results:

AFM imaging of β-lactoglobulin nanofibrils in air was successfully demonstrated.
Basic AFM principles and instrument operation were described.
AFM-based nano-sweeping for nanostructure manipulation was shown.

Conclusions:

AFM is an essential tool for high-resolution imaging and manipulation in protein nanotechnology.
Detailed protocols facilitate reproducible research with protein nanostructures and nanomaterials.
AFM offers versatile capabilities for characterizing and modifying nanoscale biological and synthetic materials.