Microfabrication Aspects for the Integration of Soft Polymers in Implantable Sensors

March 13, 2025 | 2 - 4 p.m. | FIA Seminar Room 2.330

Simon Binder, our guest from IMTEK (University of Freiburg) will have a presentation on “Microfabrication Aspects for the Integration of Soft Polymers in Implantable Sensors” 

Abstract: implantable microsensors reside in the human body and are employed to measure a variety of parameters, be they of an electrical nature (e.g. action potentials) or dissolved biomarkers (e.g. glucose). However, the body poses a harsh environment for these sensors, which are typically composed of abiotic materials. Adverse reactions of the body compromise the implant functionality and lifetime. Soft polymers, such as hydrogels, are envisioned to improve the biocompatibility of these sensors and thus promote prolonged implant functionality. Within sensors, these polymers can be used as a passive carrier material, but also as an active transducer. The talk highlights novel approaches and sensing principles that make use of these soft polymers and presents examples such as a subcutaneously injectable blood glucose sensor and a biohybrid neural implant for interfacing with the nervous system.