Ion sensitive field effect transducer-based biosensors

Area of Science:

• Materials Science
• Electrical Engineering
• Biotechnology

Background:

• Ion-sensitive field-effect transistors (ISFETs) are semiconductor devices that measure ion concentrations.
• Biosensors are analytical devices that combine a biological recognition element with a physicochemical detector.
• ISFETs are gaining traction in biosensing due to their potential for miniaturization and label-free detection.

Purpose of the Study:

• To review the fundamental principles of ISFET operation.
• To explore the diverse applications of ISFET-based biosensors.
• To discuss novel and emerging techniques in ISFET biosensor development.

Main Methods:

• Literature review of scientific publications on ISFETs and biosensors.
• Analysis of the operational mechanisms of ISFETs in biological environments.
• Categorization of ISFET biosensor applications based on target analytes and sensing strategies.

Main Results:

• ISFETs offer high sensitivity and selectivity for detecting various biomolecules.
• Key applications include glucose monitoring, DNA detection, and pathogen identification.
• Emerging techniques focus on improving stability, reducing drift, and enhancing integration with microfluidic systems.

Conclusions:

• ISFET-based biosensors represent a promising platform for point-of-care diagnostics and high-throughput screening.
• Continued research into materials and device engineering will further expand their capabilities.
• The integration of ISFETs with other technologies will drive innovation in the biosensing field.