Microsystems & Nanoengineering 2021 publication: wireless, battery-free, fully implantable electrical neurostimulation in freely moving rodents.
Implantables
Implantable Electrical Neurostimulation
Microsystems & Nanoengineering wireless battery-free neurostimulation platform with ~5.5 V compliance and ~18 mW wireless harvesting in relevant test conditions.
Part of Graduate Research Assistant · Gutruf Lab, University of Arizona · Dec 2018 – May 2022
completed2021ImplantablesNeurostimulationWireless powerElectrical systems
Typepublication-backed research
SkillsNeurostimulation, Wireless power, Electrical output, Preclinical validation
Selected facts
Quantitative details and source-backed proof points.
Approximate stimulation compliance: 5.5 V.
Approximate harvested wireless power: 18 mW in relevant test conditions.
Architecture included programmable biphasic current stimulation and stored stimulation parameters.
Validation covered power harvesting, stimulation output, communication/control, implant packaging, device reliability, and flexible electrode handling.
Project summary
Why it exists, what I built, and what I learned.
Why I built it
Freely moving stimulation studies needed programmable implantable electrical stimulation without external tethers or onboard batteries.
What I built
Wireless power harvesting, stimulation electronics, programmable biphasic stimulation control, implant packaging, flexible electrode mechanics, and validation workflows.
What worked
The system linked power harvesting, output characterization, communication/control, packaging, and flexible electrode handling into a fully implantable workflow.
What failed
Wireless power, stimulation output, packaging, targeting, and chronic reliability had to be verified under implant constraints rather than benchtop-only conditions.
What I learned
Implantable stimulation design depends on output repeatability, handling workflow, and packaging reliability as much as circuit function.
Stack
Tools, systems, and technical areas involved.
Biphasic stimulationWireless harvesting5.5 V compliance18 mW powerFlexible electrodesOutput fixtures
Links and direction
Public links and next steps.
Use this page for neuromodulation, implantable electrical output, and wireless-power evidence.
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