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Related Experiment Video

Updated: May 11, 2026

Attaching Biological Probes to Silica Optical Biosensors Using Silane Coupling Agents

Attaching Biological Probes to Silica Optical Biosensors Using Silane Coupling Agents

Published on: May 1, 2012

High-Q WGM microcavity-based optofluidic sensor technologies for biological analysis.

Zhizheng Wang¹, Bin Zhou¹, A Ping Zhang¹

¹Department of Electrical and Electronic Engineering, Photonics Research Institute, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.

Biomicrofluidics

|September 2, 2024

Summary

This summary is machine-generated.

High-quality optical microcavities with whispering-gallery modes (WGMs) combined with microfluidics create sensitive optofluidic sensors. These sensors are vital for detecting biological molecules and studying cell behavior.

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Area of Science:

Optics
Biophysics
Microfluidics

Background:

High-quality-factor (high-Q) optical microcavities confine light at the micrometer scale.
Whispering-gallery mode (WGM) microcavities are particularly useful for biological applications due to strong light-matter interactions.

Purpose of the Study:

To review recent advancements in high-Q microcavity-based optofluidic sensor technologies.
To highlight their applications in biological analysis.

Main Methods:

Integration of high-Q optical WGM microcavities with microfluidic technologies.
Development of sensitive optofluidic sensors.

Main Results:

Synergistic effects achieved through the combination of microcavities and microfluidics.
High-sensitivity detection of proteins, nucleic acids, viruses, and exosomes.
Enabling investigation of living cell behavior.

Conclusions:

Optofluidic sensors based on high-Q microcavities offer powerful tools for biological analysis.
These technologies provide new solutions for cell biology and biophysics research.