Various on-chip sensors with microfluidics for biological applications

Area of Science:

• Biomedical Engineering
• Analytical Chemistry
• Optical Sensing

Background:

• Microfluidic chips enhance sensitivity and flexibility in biosensing.
• Optical sensing techniques like Surface Plasmon Resonance (SPR) and Surface-Enhanced Raman Scattering (SERS) have been extensively researched since the 1990s.
• Integration of microfluidics with optical sensors improves biological application performance.

Purpose of the Study:

• To review recent advancements in on-chip sensors integrated with microfluidics for biological applications.
• To discuss the development of optical sensing systems with enhanced performance characteristics.
• To explore the emerging trend of incorporating consumer electronics into point-of-care testing systems.

Main Methods:

• Review of scientific literature on microfluidic on-chip sensors.
• Analysis of optical sensing phenomena (SPR, SERS) for biosensing.
• Discussion of novel optical image sensor platforms with improved Field of View (FOV) and Depth of Field (DOF).

Main Results:

• Microfluidic integration significantly boosts the sensitivity and performance of optical biosensors.
• Simpler optical image sensor platforms offer improved FOV and DOF.
• Consumer electronics are increasingly integrated into point-of-care (POC) testing.

Conclusions:

• On-chip sensors combined with microfluidics offer powerful tools for biological applications.
• The synergy between microfluidics and optical sensing drives innovation in sensitive and flexible biosensing.
• The integration of consumer electronics into POC systems represents a significant trend for accessible diagnostics.