Vasiliki Giagka

Thermoplastic polyurethane as a base material for soft, high-density neural interfaces

This paper introduces thermoplastic polyurethane (TPU) as a base material for soft, high-density neural interfaces and demonstrates its fabrication and biocompatibility.

Ultrasound Transparent Neural Interfaces for Multimodal Interaction

This paper develops ultrasound-transparent neural interfaces that enable compatibility with functional ultrasound imaging and therapy, validated through simulations and experiments.

Effects of Soft Encapsulation on the Receive Performance of PMUTs for Implantable Devices

This study evaluates how common implant polymers affect PMUT receive performance, showing that acoustic and mechanical properties, along with thickness, determine effectiveness.

Transparent transfer-free multilayer graphene microelectrodes enable high quality recordings in brain slices

This study develops transfer-free multilayer graphene microelectrodes for high-quality neural recordings in brain slices, showing improved signal-to-noise ratios.

On the Stability of Silicone-Encapsulated CMOS ICs for Active Implantable Devices: 4.3 Years of Accelerated Life Testing

This study evaluates the long-term stability of silicone-encapsulated CMOS ICs in biofluid environments through 4.3 years of accelerated life testing, finding no insulation failures and limited failures at wire bonds.

Ultrasonically Powered Neuromodulation Platform Intended for Spatially and Directionally Selective Electrical Stimulation

This paper introduces a neuromodulation platform for spatially and directionally selective electrical stimulation of the vagus nerve, capable of excitation and inhibition with wireless ultrasound power.

Longevity of Implantable Silicon-ICs for Emerging Neural Applications: Evaluation of Bare Die and PDMS-Coated ICs After Accelerated Aging and Implantation Studies

The paper evaluates the long-term stability of implantable silicon-ICs, showing that PDMS coating prevents degradation while bare die ICs remain electrically stable for at least a year.

Surface modification of multilayer graphene neural electrodes by local printing of platinum nanoparticles using spark ablation

This paper modifies multilayer graphene neural electrodes with platinum nanoparticles using spark ablation, improving electrochemical performance while maintaining optical transparency.