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

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.