Physiological parameter from sweat can improve the assessment of the body status in sports performance diagnostics. The presented sensor device can provide insight into intra-corporal physiological processes, help to control training intensity in sports, and prevent muscular overstrain during physical stress. The fabrication and analysis of ion-selective sensors and also the integration with tailored electronics are presented. The printed sensors are developed to fit wearable devices and deliver specificity for ammonium levels in sweat.

Alicia Zörner, research scientist, received her Master degree in nanotechnology from Friedrich-Alexander University Erlangen-Nuremberg in 2016. Since 2016 she is a PhD student at Fraunhofer IISB within the group on thin film systems. Main topics of this group are printed electronics, thin film sensors, as well as device and application development. Her PhD thesis is focused on the development and fabrication of printed sensors for multiple ion detection in liquid samples and the improvement of the sensor selectivity.

Fraunhofer Institute for Integrated Systems and Device Technology IISB conducts applied research in the business fields Semiconductor and Power Electronics. In a comprehensive approach, IISB adresses value chains starting from base material development until prototype application.

The Thin-Film Systems group is active in liquid precursors for metal oxides and silicon as well as the deposition of corresponding thin-films from vacuum and novel solution-based techniques. Thin-film and device integration is backed by qualified cleanroom facilities and a dedicated printed electronics laboratory. Smart sensing and large-area electronic solutions for consumer, automotive, agricultural and medical applications are developed based on thin-film and hybrid electronics.