Review: Cantilever-Based Sensors for High Speed Atomic Force Microscopy

Area of Science:

• Nanotechnology and Materials Science
• Biophysics and Sensor Technology

Background:

• Microcantilevers are sensitive mechanical spring-mass systems used in atomic force microscopy (AFM).
• Their high sensitivity to resonant frequency changes enables diverse applications, particularly in molecular sensing.

Purpose of the Study:

• To critically review recent advancements in microcantilever-based force sensors for AFM.
• To summarize progress in deflection detection, fabrication, coating, and functionalization of microcantilevers.
• To discuss their application as bio- and chemical sensors and recent breakthroughs in biological sample analysis.

Main Methods:

• Literature review of recent research on microcantilever force sensors.
• Analysis of advancements in AFM technology and microcantilever design.
• Synthesis of findings on microcantilever applications in sensing.

Main Results:

• Significant progress in microcantilever fabrication, coating, and functionalization techniques.
• Enhanced capabilities for deflection detection systems.
• Expanding applications in molecular, bio-, and chemical sensing.

Conclusions:

• Microcantilever force sensors are crucial for high-sensitivity AFM applications.
• Recent innovations are driving progress in molecular sensing and biological sample analysis.
• Future directions include further integration into high-speed AFM for biological studies.