Piezoelectric sensors in point-of-care testing.

Area of Science:

• Materials Science
• Biotechnology
• Sensor Technology

Background:

• Piezoelectric (PE) sensors are increasingly vital for point-of-care testing (POCT).
• PE biosensors and chemosensors integrate PE transducers with biological/synthetic recognition elements.
• These systems enable sensitive, rapid, and decentralized diagnostic capabilities.

Purpose of the Study:

• To provide a comprehensive overview of PE biosensors and chemosensors for POCT.
• To critically evaluate analytical performance metrics of selected PE sensor studies.
• To highlight the potential of PE platforms for clinical diagnostics.

Main Methods:

• Review and critical evaluation of existing literature on PE biosensors and chemosensors for POCT.
• Focus on integration of PE transducers (QCM, BAW, cantilevers) with recognition elements.
• Analysis of studies based on limit of detection, dynamic range, specificity, and stability.

Main Results:

• Nanomaterials and engineered PE compounds significantly enhance signal transduction and assay sensitivity.
• PE platforms demonstrate versatility in detecting diverse analytes, including disease and cancer biomarkers.
• Selected studies show promising analytical performance for PE-based POCT.

Conclusions:

• PE POCT systems are technologically mature and adaptable.
• These systems offer viable alternatives to conventional optical and electrochemical sensors.
• PE biosensors and chemosensors hold significant potential for widespread clinical deployment.