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Related Concept Videos

Atomic Force Microscopy01:08

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...
Studying the Cytoskeleton01:17

Studying the Cytoskeleton

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...
Overview of Microscopy Techniques01:22

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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High-Speed Atomic Force Microscopy Imaging of DNA Three-Point-Star Motif Self Assembly Using Photothermal Off-Resonance Tapping
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High-Speed Atomic Force Microscopy Imaging of DNA Three-Point-Star Motif Self Assembly Using Photothermal Off-Resonance Tapping

Published on: March 22, 2024

High-speed atomic force microscopy and biomolecular processes.

Takayuki Uchihashi1, Toshio Ando

  • 1Department of Physics, Kanazawa University, Kanazawa, Japan.

Methods in Molecular Biology (Clifton, N.J.)
|June 11, 2011
PubMed
Summary
This summary is machine-generated.

High-speed atomic force microscopy (AFM) enables real-time visualization of biomolecular processes. Researchers are improving AFM speed and reducing tip-sample forces for high-resolution imaging of moving molecules.

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Area of Science:

  • Biophysics
  • Nanotechnology
  • Molecular Biology

Background:

  • Atomic force microscopy (AFM) offers high-resolution imaging of biological samples in liquid environments.
  • Current AFM speeds are insufficient for observing dynamic biomolecular processes in real-time.
  • Direct visualization is crucial for understanding complex biomolecular interactions and functions.

Purpose of the Study:

  • To review advancements in increasing atomic force microscopy (AFM) scan rates.
  • To discuss methods for reducing tip-sample interaction forces in AFM.
  • To highlight the demonstration of direct visualization of biomolecular processes using enhanced AFM.

Main Methods:

  • Review of techniques for enhancing AFM scanning speed.
  • Analysis of strategies for minimizing tip-sample forces.
  • Case studies demonstrating real-time imaging of biomolecular dynamics.

Main Results:

  • Significant progress has been made in accelerating AFM imaging speeds.
  • Reduced tip-sample forces improve image quality and minimize sample damage.
  • Successful visualization of biomolecular processes at high resolution and speed has been achieved.

Conclusions:

  • Advancements in AFM technology are enabling unprecedented real-time observation of molecular events.
  • High-speed AFM is a powerful tool for elucidating the mechanisms of biological processes.
  • Future developments aim to further increase speed and resolution for comprehensive molecular studies.