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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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Updated: May 4, 2026

Atomic Force Microscopy of Red-Light Photoreceptors Using PeakForce Quantitative Nanomechanical Property Mapping
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Deep atomic force microscopy.

H Barnard1, B Drake1, C Randall1

  • 1Department of Physics, University of California, Santa Barbara, California 93106, USA.

The Review of Scientific Instruments
|January 7, 2014
PubMed
Summary
This summary is machine-generated.

Researchers developed long-tipped Atomic Force Microscope (AFM) probes to image samples with large vertical topography. This innovation overcomes current limitations, enabling detailed analysis of structures like fractured bone.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biomedical Engineering

Background:

  • Atomic Force Microscopy (AFM) offers high-resolution imaging of diverse samples.
  • Current AFM limitations include probe tip length, restricting analysis of tall or deep structures.
  • Vertical topography imaging is crucial for fields like bone research.

Purpose of the Study:

  • To overcome the limitation of short probe tips in Atomic Force Microscopy.
  • To enable AFM imaging of samples with vertical topography exceeding 100 μm.
  • To develop a method for fabricating extended-length AFM probe tips.

Main Methods:

  • Hand-fabrication of specialized Atomic Force Microscope (AFM) probes.
  • Development of probes with tip lengths of 100 μm and greater.
  • Testing of fabricated probes on samples with significant vertical topography.

Main Results:

  • Successfully fabricated AFM probes with tip lengths of 100 μm and beyond.
  • Demonstrated the capability of these probes to image samples with large vertical features.
  • Overcame the 10 μm probe tip limitation of commercially available AFM probes.

Conclusions:

  • The developed "Deep AFM" probes significantly extend the vertical imaging range of AFM.
  • This method allows for the study of previously inaccessible sample topographies.
  • Enables new applications for AFM in analyzing complex structures like fractured bone.