Field effect sensors for nucleic Acid detection: recent advances and future perspectives

Area of Science:

• Biosensors and nanotechnology
• Molecular diagnostics
• Nucleic acid analysis

Background:

• Field-effect transistors (FETs) are key components in advanced biosensors.
• These devices facilitate label-free DNA and RNA analysis, crucial for disease diagnostics.
• FET biosensors offer advantages like high signal-to-noise ratio and portability.

Purpose of the Study:

• To review field-effect sensor strategies for nucleic acid detection.
• To highlight the integration of FET biosensors into molecular diagnostics platforms.
• To focus on FET biosensors currently used in diagnostic laboratories.

Main Methods:

• Review of literature on FET-based nucleic acid detection.
• Analysis of device production, functionalization, and integration strategies.
• Evaluation of FET biosensors for diagnostic applications.

Main Results:

• FET biosensors provide a powerful platform for label-free DNA/RNA detection.
• Key challenges include managing the Debye length for optimal detection.
• Significant advancements have been made in developing FET architectures for diagnostics.

Conclusions:

• FET biosensors are emerging as vital tools for molecular diagnostics and point-of-care testing.
• Continued development is needed to overcome inherent limitations and enhance performance.
• The review emphasizes the transition of FET biosensor technology from research to clinical application.