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An AFM tip replacement system compatible with all ambient media and operation modalities.

K S Vikrant1, G R Jayanth1

  • 1Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore, Karnataka 560012, India.

Ultramicroscopy
|November 3, 2018
PubMed
Summary

This study introduces a novel method for replacing only the tip of an atomic force microscope (AFM) probe using a paraffin wax micro-gripper. This technique is compatible with various AFM operations and media, enhancing probe longevity and imaging consistency.

Keywords:
Atomic force microscopyContact mode imagingParaffin wax-based microgripperReplaceable tips

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Surface Science

Background:

  • Atomic Force Microscope (AFM) probes require frequent replacement due to tip blunting or contamination.
  • Existing methods involve complete probe replacement, which is costly and time-consuming.
  • A need exists for a more efficient and cost-effective solution for AFM probe maintenance.

Purpose of the Study:

  • To develop a novel technique for replacing only the tip of an AFM probe.
  • To demonstrate the compatibility of this technique with conventional AFM modalities and media.
  • To enhance the longevity and reliability of AFM probes.

Main Methods:

  • Utilizing a paraffin wax micro-particle as an integrated adhesive micro-gripper.
  • Controlling the phase of the paraffin wax to manipulate the AFM probe tip.
  • Experimentally demonstrating the technique during contact mode imaging in water.

Main Results:

  • The paraffin wax micro-gripper successfully picked up, detached, and gripped AFM probe tips.
  • Imaging results in water were comparable to those obtained with conventional probes in air.
  • The micro-gripper exhibited a significantly higher operational lifetime than the probe tip itself.
  • The technique was also shown to enable the detachment of the AFM tip.

Conclusions:

  • The proposed paraffin wax micro-gripper offers a viable solution for replacing AFM probe tips.
  • This method is compatible with standard AFM operations and various environmental conditions.
  • The technique enhances the cost-effectiveness and efficiency of AFM usage by extending probe usability.