Optical Image Sensors for Smart Analytical Chemiluminescence Biosensors

Area of Science:

• Analytical Biochemistry
• Microfluidics
• Optical Sensing

Background:

• Optical biosensors provide sensitive and specific biomolecule detection.
• Lab-on-a-chip (LOC) platforms integrate microfluidics with biosensing for miniaturized analysis.
• Chemiluminescence and electrochemiluminescence are key optical phenomena for analyte detection.

Purpose of the Study:

• To review advancements in optical biosensor integration with microfluidic LOC platforms.
• To explore the use of various optical detectors, including pixelated sensors.
• To highlight the benefits of CMOS image sensors in biosensing applications.

Main Methods:

• Review of optical detection methods for chemiluminescence.
• Analysis of single-point detectors (PMT, APD) and pixelated detectors (CCD, CMOS).
• Focus on the integration of optical biosensors with CMOS image sensors within LOC platforms.

Main Results:

• LOC platforms enable rapid, efficient, and point-of-need analysis.
• CMOS image sensors offer high-resolution, spatially resolved, and multiplexed detection.
• CMOS sensors are compact, low-power, and cost-effective for portable devices.

Conclusions:

• Integration of optical biosensors with CMOS image sensors significantly enhances LOC platform capabilities.
• These integrated systems are suitable for point-of-care diagnostics and diverse applications.
• Future integration with machine learning will drive more sophisticated diagnostic tools.