CSEM is working to support the cleantech industry in its drive to monitor and improve the quality of our air, water, and soil—providing the industry with a number of cutting-edge technologies.
These technologies include innovative sensors and integrated systems. We’re working on this in a number of different ways, including by developing electrochemical and optical sensing technologies, surface engineering approaches, and MEMS-based sensors—alone and in combination with ultra-low-power communication. Often integration is the key to a working solution.
In water quality monitoring, our projects have integrated state-of-the-art sensors into wireless sensor networks. We’re also developing new, disposable, screen-printed sensors to detect pH, ions, heavy metals, bacteria, and other elements. We’ve created more robust MEMS-based sensors based on ion-sensitive field-effect transistors (ISFET) to be used—for example—in pH sensing. And we’ve proved we can develop tools for the online monitoring of oxidants such as chlorine or oxygen dissolved in water, and also of toxins. Our more recent cell-based sensing microsystems and nanoporous layers can be used to measure pH, O2, and CO2. All our solutions put special emphasis on the self-calibration, self-cleaning, and stability of our sensors.
In air quality and gas monitoring, we’re developing CO2 sensors for demand-controlled ventilation, and integrated air quality sensors for energy-efficient environment control. We’re working on airborne miniaturized LIDAR’s for the environmental control of particles and gases, and photoacoustic spectroscopy for gas detection in the ppb range. And we’re developing rapid optical spectroscopy in NIR, and low-cost color sensors based on nano-structuration (NH3).
In soil monitoring, we’re pursuing an ultra-low-power wireless sensor network that supports drip irrigation with controlled soil humidity in vineyards.