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Related Experiment Video

Updated: Mar 24, 2026

Real-time Monitoring of Reactions Performed Using Continuous-flow Processing: The Preparation of 3-Acetylcoumarin as an Example

Real-time Monitoring of Reactions Performed Using Continuous-flow Processing: The Preparation of 3-Acetylcoumarin as an Example

Published on: November 18, 2015

Real-Time Acetone Gas Monitoring Using Calixarene-Functionalized Guided-Mode Resonance-Based Sensors.

Adam Rigler¹, William P Unsworth², Thomas F Krauss^1,3

¹School of Physics, Engineering, and Technology, University of York, York YO10 5DD, U.K.

|March 23, 2026

Summary

This summary is machine-generated.

A new optical gas sensor detects acetone using guided-mode resonance (GMR) and a calixarene layer. This handheld sensor offers a low-cost, repeatable solution for monitoring workplace safety and preventing hazardous exposure to volatile organic compounds (VOCs).

Keywords:

acetone biosensor calixarene gas sensor guided-mode resonance photonic resonant

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Last Updated: Mar 24, 2026

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Area of Science:

Chemical Sensors
Optical Sensing
Materials Science

Background:

Portable sensors for volatile organic compounds (VOCs) are crucial for applications like breath analysis and industrial safety.
Acetone detection is vital for preventing hazardous workplace exposure, but existing sensors have limitations like high power consumption and complexity.

Purpose of the Study:

To develop a handheld, low-power optical gas sensor for detecting acetone at room temperature.
To functionalize a guided-mode resonance (GMR) sensor with a calixarene layer for enhanced acetone sensitivity.

Main Methods:

Fabrication of a medium-quality (Q-factor) guided-mode resonance (GMR) sensor.
Functionalization of the GMR sensor with a calixarene layer for acetone interaction.
Testing the sensor's response to acetone vapor at room temperature and analyzing its performance.

Main Results:

The optical gas sensor achieved a limit of detection (LOD) of 80 ppm for acetone vapor.
The sensor response followed an extended Langmuir isotherm, suitable for workplace safety monitoring (>170 ppm danger threshold).
Repeatable measurements with a standard deviation of 4.5% were demonstrated.

Conclusions:

The developed GMR-based optical sensor provides a low-cost, high-performance solution for real-time acetone monitoring in industrial environments.
The handheld and room-temperature operation makes it a practical alternative to existing sensor technologies for worker safety applications.