Related Experiment Video
Updated: Apr 30, 2026
08:12
Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing
Published on: March 13, 2013
12.2K
Hybrid mesoporous colloid photonic crystal array for high performance vapor sensing
Ling Bai1, Zhuoying Xie, Kaidi Cao
1State Key Laboratory of Bioelectronics, Southeast University, Nanjing, 210096, China. zyxie@seu.edu.cn gu@seu.edu.cn.
Nanoscale
|April 29, 2014
Summary
A novel hybrid mesoporous photonic crystal vapor sensing chip was developed. This chip can detect and differentiate various vapors and their concentrations using fluorescence and reflective responses.
Area of Science:
- Materials Science
- Nanotechnology
- Chemical Sensing
Background:
- Mesoporous colloidal crystals offer unique optical properties.
- Photonic crystals are sensitive to their surrounding environment.
- Fluorescent dyes can report on local chemical changes.
Purpose of the Study:
- To develop a hybrid mesoporous photonic crystal vapor sensing chip.
- To utilize fluorescence and reflective properties for vapor detection.
- To achieve discrimination of various vapors and their concentrations.
Main Methods:
- Synthesized mesoporous colloidal crystals.
- Incorporated fluorescent dyes into the crystal structure.
- Fabricated a hybrid sensing chip.
- Measured fluorescence and reflective spectra in response to vapor analytes.
Main Results:
- The hybrid chip demonstrated sensitivity to vapor analytes.
- Distinct fluorescence and reflective responses were observed for different vapors.
- The chip could discriminate between various vapor types.
- Vapor concentrations were correlated with spectral changes.
Conclusions:
- The developed hybrid mesoporous photonic crystal chip is effective for vapor sensing.
- The combination of fluorescence and photonic crystal properties enables selective vapor detection.
- This technology holds potential for sensitive and specific vapor analysis.
