A smartphone-based dosimeter of the exposure to toxic gases
![QR codes with gassensitive coatings](/en/bu/gas-and-process-technology/applications/health/toxic-gases-detection/snap-gas-eu-project/jcr:content/contentPar/sectioncomponent_990127351/sectionParsys/textwithinlinedimage/imageComponent1/image.img.jpg/1597763158886/SnapGas-QR-Codes-Gasmesszelle.jpg)
For laboratory tests, the QR codes with the gas-sensitive coatings are integrated into a customized gas measuring cell.
![QR codes with gas sensitive coatings Fraunhofer IPM](/en/bu/gas-and-process-technology/applications/health/toxic-gases-detection/snap-gas-eu-project/jcr:content/contentPar/sectioncomponent_990127351/sectionParsys/textwithinlinedimage/imageComponent2/image.img.jpg/1597763158886/SnapGas-QR-Codes-Smartphone.jpg)
Gas sensitive colorimetric coatings deposited on QR-codes can be analyzed via smartphone.
Within the project SnapGas, a smartphone-based sensor system is being developed that reliably detects toxic gases. The gases are determined quickly and selectively by means of colorimetric indicators. The sensor is constructed as a gas-sensitive label using an inkjet printing process. The reading of the gas-dependent color change is to be camera-based, e.g. via smartphone. This allows, for example, a cost-effective and immediate human protection for the chemical and petrochemical industry.
Project finance
SnapGas is funded under the European funding programme for research-based SMEs »Eurostars«.
Project partners
Scemtec Transponder Technology GmbH, Gummersbach
Sensotran, Barcelona
EU Project page
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