A Road Map toward Field-Effect Transistor Biosensor Technology for Early Stage Cancer Detection

Area of Science:

• Nanoelectronic biosensors
• Cancer diagnostics
• Biomarker detection

Background:

• Field-effect transistor (FET)-based nanoelectronic biosensors are promising for specific and sensitive cancer biomarker detection.
• Applications include early-stage cancer detection, disease progression monitoring, and therapy effectiveness evaluation.
• Key challenges for clinical implementation include sensitivity, selectivity, operational conditions, and economic viability.

Purpose of the Study:

• To provide an overview of recent research efforts addressing challenges in FET-based biosensor development.
• To highlight strategies for improving sensing performance for clinical applications.
• To discuss the future potential of FET-based devices for detecting various disease biomarkers.

Main Methods:

• Review of multistep fabrication processes for FETs.
• Discussion of bioreceptor selection for target biomarkers.
• Analysis of operational conditions, measurement configurations, and performance enhancement strategies.

Main Results:

• Significant research progress has been made in addressing critical issues in FET-based biosensor development.
• Various approaches and strategies are being employed across all developmental stages, from device design to data analysis.
• Specific methods focus on improving sensitivity, selectivity, and overall sensing performance.

Conclusions:

• FET-based biosensors show great potential for cancer diagnostics and detecting biomarkers for other diseases.
• Continued research and development are expected to lead to the next generation of FET diagnostic devices.
• Overcoming current challenges will pave the way for widespread clinical application.