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Updated: Jun 28, 2026
09:03
A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
A fiber-optic sensor for CO(2) measurement.
C Munkholm1, D R Walt, F P Milanovich
1Max Tishler Laboratory for Organic Chemistry, Department of Chemistry, Tufts University, Medford, MA 02155, U.S.A.
Talanta
|February 1, 1988
Summary
A new fiber-optic sensor detects carbon dioxide (CO2) at physiologically relevant levels. This miniature sensor uses a fluorescent dye and pH changes for accurate CO2 measurement in biological applications.
Area of Science:
- Biomedical Engineering
- Chemical Sensors
- Optical Sensing
Background:
- Accurate monitoring of carbon dioxide (CO2) is crucial in physiological and medical settings.
- Existing CO2 sensors can be bulky or lack the sensitivity required for certain applications.
- Developing miniature, sensitive sensors is essential for advanced biomedical monitoring.
Purpose of the Study:
- To develop a novel fiber-optic sensor for detecting carbon dioxide.
- To achieve sensitivity at physiologically significant CO2 concentrations.
- To preserve the miniature size of the sensor through advanced fabrication techniques.
Main Methods:
- Fabrication of a fiber-optic sensor utilizing a fluorescent dye-based sensing layer.
- Immobilization of sensing chemistry directly onto the glass fiber tip using solution polymers.
- Preparation of polymer-immobilized dyes and polymer membranes for sensor construction.
Main Results:
- The developed fiber-optic sensor exhibits a response to carbon dioxide.
- The sensor operates effectively at physiologically significant CO2 concentrations.
- The direct bonding methodology preserves the sensor's miniature dimensions.
Conclusions:
- A functional fiber-optic sensor for CO2 detection has been successfully prepared.
- The sensor's design is suitable for applications requiring precise CO2 monitoring.
- The polymer immobilization technique offers a robust method for creating miniature optical sensors.
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