Monitoring trace gases with high sensitivity and selectivity is essential for environmental safety and smart monitoring systems.

The use of gas sensors in detecting, monitoring, and evaluating combustion-related toxic and exhaust gases has attracted much interest. This technique finds practical application at both industrial ...

Gas detection techniques have a fascinating history, dating back to the 19th century when canaries served as early warning systems for toxic gases in coal mines. When coal emerged as the Industrial ...

The key insight behind the device is that sound travels at different speeds in different gases. In helium, sound moves much ...