Related Experiment Video
Updated: Jan 19, 2026
10:43
High-throughput Identification of Bacteria Repellent Polymers for Medical Devices
Published on: November 5, 2016
9.5K
Gas Sensor Array System Properties for Detecting Bacterial Biofilms
Suryani Dyah Astuti1,2, Yanuar Mukhammad1, Sirlus Andreanto Jasman Duli1
1Biomedical Engineering, Postgraduate School, Universitas Airlangga, Surabaya, Indonesia.
Journal of Medical Signals and Sensors
|September 24, 2019
Summary
This study developed a portable electric nose using a gas sensor array to detect odors from periodontal bacterial biofilms. The TGS 826 and TGS 2602 sensors showed the best response, indicating potential for early dental and oral disease detection.
Area of Science:
- Biomedical Engineering
- Sensor Technology
- Oral Health Diagnostics
Background:
- Gas sensor array systems mimic the human olfactory system to identify specific odors.
- These systems can characterize blended gases and are applicable to detecting dental and oral diseases like periodontitis.
- Periodontitis is a chronic infection of the gingival structure caused by bacterial plaque and calculus.
Purpose of the Study:
- To develop a portable electric nose for odor detection.
- To apply this device for analyzing periodontal bacterial biofilm odors.
- To establish an early detection method for dental and oral diseases.
Main Methods:
- A portable gas sensor array system was designed for ease of data acquisition.
- The system incorporated six gas sensors: TGS 826, TGS 2602, TGS 2600, TGS 2611, TGS 2612, and TGS 2620.
- Data was stored in a database connected to a real-time computer.
Main Results:
- The TGS 826 and TGS 2602 sensors demonstrated the most effective response.
- This superior response was quantified by a high Analog-to-Digital Converter (ADC) delta value.
Conclusions:
- The TGS 826 and TGS 2602 sensors are suitable candidates for developing an early detection device.
- This technology can aid in the early identification of dental and oral diseases associated with bacterial biofilms.
