Christian Grossmann Aybar

As part of the R&D team at BioInitials AG, I contribute to the development of a smart toothbrush-based medical device designed to detect salivary biomarkers associated with early signs of asthma exacerbation, potentially before symptoms appear. My role focuses on electronics, embedded systems, biosensor integration and device-level testing. This includes the design, development and validation of a low-power, battery-operated embedded system with analog front-end circuitry, custom potentiostat electronics for 3-channel electrochemical sensing, BLE communication, safety features and power management. I also work on firmware, real-time biosensor data acquisition, signal-processing workflows and diagnostic algorithm development. In addition, I support verification testing, technical documentation and cross-functional coordination with software teams, hospitals, suppliers and external partners, contributing to the preparation of a clinical study and the development of a reliable medical device.

At ZHAW, I worked on applied biomedical engineering R&D projects, developing prototypes and test setups that integrated electronics, software, mechanical design, housing and data acquisition in collaboration with academic, clinical and industry partners. A key project was the design and validation of a novel Ventricular Assist Device (VAD) driveline concept for implantable cardiac support systems, achieving more than 50% reduction in biofilm formation and inflammatory response compared to commercial solutions. I supported the development through COMSOL simulations, surgeon feedback from Charité Hospital Berlin, electrical characterization and animal trials with 20 prototypes. I also developed custom measurement electronics, software and signal-processing tools for experimental testing and technical reporting. Additional work included a portable single-channel EEG recorder with BLE connectivity, dry electrode characterization setups and a software interface for a fluorescence-based in vitro diagnostic device.

During several summer periods, I worked as an Administrative Assistant in the insurance sector, supporting policy sales, client communication and broker operations. I assisted with insurance policies for SMEs, cars and motorcycles, advised clients on suitable coverage options and managed communication between brokers, insurance companies and clients. I also supported claims handling, accident reports and the organization of physical and digital documentation. This role strengthened my communication, organization and client-facing skills in a professional service environment.

As an intern in the Sensors and Measurement Systems group at the Institute of Computational Physics, I supported applied research projects in biomedical prototyping, sensor development and soft-material technologies. I designed and fabricated 3D-printed transdermal drug delivery systems using soft-material chemistry and developed a proof of concept for a flexible pressure sensor based on silicon-based materials and bio-3D printing.

Knowledge and skills to conduct design studies and development projects for products, instruments and systems, and then to lead them to certification. This includes the regulatory requirements for the approval of medical devices, the analysis of multidisciplinary problems and development of engineering solutions.

Graduated as Valedictorian of the University, 2022

Graduated as Valedictorian of the University, 2022