Biosensors in clinical chemistry - 2011 update

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Clinical Diagnostics

Background:

• Biosensors are crucial for measuring clinical analytes.
• Nanotechnology integration has significantly improved biosensor performance.
• Research in biosensors for clinical applications has expanded rapidly.

Purpose of the Study:

• To review research and applications of biosensors for clinical analytes over the past eight years.
• To highlight advancements in biosensor technology and their potential clinical impact.
• To identify challenges and future directions for biosensor development and implementation.

Main Methods:

• Review of research literature on biosensors for clinical analytes.
• Analysis of nanotechnology applications in biosensor design (electrochemical, optical, mechanical, physical transduction).
• Examination of biosensor applications for cancer, cardiac, autoimmune, and infectious diseases, as well as DNA analysis.

Main Results:

• Nanotechnology has enhanced biosensor performance and enabled parallel sensing arrays.
• Biosensors show promise for detecting cancer biomarkers, cardiac markers, and infectious agents.
• Novel applications include analysis of saliva and monitoring cancer cell response to chemotherapy.
• Despite increased research, translation to clinical settings is slow.

Conclusions:

• Biosensors offer significant potential for point-of-care testing (POCT).
• Successful clinical implementation requires integration into reliable, user-friendly instrumentation.
• Overcoming the lab-to-clinic translation gap is essential for widespread biosensor adoption.