On-Chip Photonic Detection Techniques for Non-Invasive In Situ Characterizations at the Microfluidic Scale.

Area of Science:

• Photonics and Microfluidics
• Analytical Chemistry
• Spectroscopy

Background:

• Microfluidics offers unique environments for sensitive, real-time analyses due to small sample volumes.
• Photonic detection techniques coupled with on-chip configurations provide non-invasive, high-throughput analysis.
• Integrated detection schemes are crucial for advancing microfluidic applications.

Purpose of the Study:

• To review recent advances in on-chip photonic detection techniques for microfluidic systems.
• To explore the integration of UV-vis, near-infrared, terahertz, and X-ray-based methods.
• To discuss the principles and applications of these techniques for various characterizations.

Main Methods:

• Review of integrated photonic detection schemes in microfluidics.
• Analysis of UV-vis, near-infrared, terahertz, and X-ray techniques.
• Discussion of spectroscopic, scattering, mapping, and imaging applications.

Main Results:

• Significant progress in on-chip implementation of diverse photonic detection methods.
• Demonstration of sensitive, rapid, and high-throughput analyses.
• Successful application of techniques for punctual measurements and imaging.

Conclusions:

• Integrated photonic detection is a powerful approach for microfluidic analysis.
• The reviewed techniques enable comprehensive characterization from spectroscopy to imaging.
• Further development promises enhanced capabilities in biomedical and chemical analysis.