New solutions for atmospheric monitoring
We have recently demonstrated new techniques for sensitive measurements of nitrogen dioxide (NO2) and black carbon. Both techniques are based on cantilever-enhanced photoacoustic detection:

J. Karhu et al., "LED-Based Photoacoustic NO2 Sensor with a Sub-ppb Detection Limit", ACS Sensors 6, 9, 3303–3307 (2021)

J. Karhu et al., "Cantilever-enhanced photoacoustic measurement of light-absorbing aerosols," Aerosol Science and Technology 56, 1, 92-100 (2022)