This research proposal details the experimental validation and in-vivo imaging protocols for Thin-Film Magnetostrictive Wireless microsensors, a transformative platform for continuous, batteryless physiological monitoring within living organisms. The study introduces a multi-layer sensor architecture integrating magnetostrictive FeGa thin films with piezoelectric AlN layers for wireless interrogation via magnetic field coupling.
Key findings
A magnetoelastic resonance shift detection scheme achieves pressure sensitivity of 0.8 Hz/mmHg.
Biocompatible parylene-C encapsulation allows for chronic implantation.
MRI-compatible sensor designs enable multimodal imaging integration.
The experimental plan addresses validation endpoints including measurement accuracy, long-term stability, biocompatibility, and wireless readout range.
Limitations & open questions
The research focuses primarily on intracranial pressure monitoring, limiting the scope of application.
The proposed validation methodology is yet to be fully implemented and tested.