Optofluidic time-stretch imaging - an emerging tool for high-throughput imaging flow cytometry.

Area of Science:

• Biomedical optics
• Cellular imaging
• Single-cell analysis

Background:

• Optical imaging is crucial for visualizing cells but struggles with high-throughput analysis of heterogeneous populations.
• Current methods lack the speed and sensitivity for precise single-cell characterization in large cell numbers.
• Single-cell analysis is vital for modern biology and clinical diagnostics.

Purpose of the Study:

• Introduce optical time-stretch imaging as a solution for ultrahigh-throughput single-cell analysis.
• Review recent advancements and applications of optofluidic time-stretch imaging.
• Discuss the technology's potential for basic biology and clinical diagnostics.

Main Methods:

• Utilizes principles from high-speed fiber-optics communication.
• Employs optofluidic systems for imaging.
• Achieves imaging speeds of up to ~100,000 cells per second.

Main Results:

• Demonstrates optical time-stretch imaging enables 1-2 orders-of-magnitude higher throughput than existing imaging flow cytometers.
• Enables quantification of intrinsic biophysical cell markers, complementing biochemical analysis.
• Provides a new approach for dissecting cell-to-cell variability.

Conclusions:

• Optical time-stretch imaging significantly advances single-cell analysis capabilities.
• The technology offers potential for novel insights in fundamental biology.
• It holds promise for enhancing clinical diagnostic toolsets.