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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.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...

Overview of Microscopy Techniques

Overview of Microscopy Techniques

The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...

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Updated: Jun 20, 2026

Atomic Force Microscopy of Red-Light Photoreceptors Using PeakForce Quantitative Nanomechanical Property Mapping

Atomic Force Microscopy of Red-Light Photoreceptors Using PeakForce Quantitative Nanomechanical Property Mapping

Published on: October 24, 2014

Atomic force microscope nanomanipulation with simultaneous visual guidance.

Suenne Kim¹, Daniel C Ratchford, Xiaoqin Li

¹Department of Physics, Center for Nano- and Molecular Science and Technology, University of Texas at Austin, Austin, Texas 78712, USA.

|September 16, 2009

Summary

This summary is machine-generated.

This study introduces a new atomic force microscopy (AFM) method for efficiently manipulating nanoscale colloidal nanoparticles. The enhanced protocol allows simultaneous manipulation and visual guidance, improving the assembly of nanostructures.

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Related Experiment Videos

Last Updated: Jun 20, 2026

Atomic Force Microscopy of Red-Light Photoreceptors Using PeakForce Quantitative Nanomechanical Property Mapping

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Published on: October 24, 2014

Hand Controlled Manipulation of Single Molecules via a Scanning Probe Microscope with a 3D Virtual Reality Interface

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Published on: October 2, 2016

Sub-nanometer Resolution Imaging with Amplitude-modulation Atomic Force Microscopy in Liquid

Sub-nanometer Resolution Imaging with Amplitude-modulation Atomic Force Microscopy in Liquid

Published on: December 20, 2016

Area of Science:

Nanotechnology
Materials Science
Surface Science

Background:

Atomic force microscopy (AFM) is crucial for nanostructure assembly.
Current AFM protocols limit simultaneous manipulation and imaging.
Understanding nanoscale friction is essential for precise control.

Purpose of the Study:

To develop an improved AFM nanomanipulation protocol.
To enable simultaneous visual guidance during nanoparticle manipulation.
To enhance the efficiency of assembling nanostructures with small colloidal nanoparticles.

Main Methods:

Developed a novel AFM nanomanipulation protocol.
Utilized a two-step process: initial 'kick' with z-feedback off to reduce friction, followed by 'dribbling' in tapping mode.
Implemented simultaneous visual guidance using a ghost trace of the nanoparticle.

Main Results:

Successfully manipulated gold (Au) nanoparticles on a substrate.
Demonstrated significantly improved efficiency for manipulating nanoparticles 15 nm in diameter or smaller.
The new protocol enhances control and precision in nanoscale assembly.

Conclusions:

The developed AFM protocol offers superior efficiency for nanomanipulation.
Simultaneous visual guidance is key to improving control at the nanoscale.
Further research into nanoscale friction is critical for advancing nanomanipulation techniques.