Smart at-home electrochemical sensor for rapid biofluid nutrient testing
A portable, low-cost electrochemical sensor system that quantifies micronutrient levels from saliva, urine, or sweat using disposable test strips and a smartphone-connected potentiostat. Ideal for home and retail health diagnostics, providing real-time, lab-quality results.
Overview
The Smart At-Home Electrochemical Sensor provides a breakthrough in nutrient testing by allowing individuals to measure their micronutrient levels from saliva, urine, or sweat quickly and non-invasively. This innovative system uses disposable laser-induced graphene (LIG) test strips that connect to a compact potentiostat, which interfaces directly with a smartphone for immediate analysis. Designed for consumer ease, this platform mimics the simplicity of glucose monitoring devices, making it ideal for home use and over-the-counter wellness diagnostics.
Technical specifications
- Laser-Induced Graphene (LIG) Electrodes: High conductivity and large surface area enhance sensor sensitivity.
- Plug-and-Play Design: Simple connection to smartphones via USB-sized potentiostat.
- Rapid Testing: Provides results in less than 2 minutes.
- Multi-Analyte Detection: Capable of detecting vitamins A, B2, B6, B12, C, D2, D3, calcium, magnesium, zinc, and iron.
- High Stability: Hydrophobic ion-selective membranes minimize drift and improve stability.
- User-Friendly App: While app development is planned for future projects, the system is designed to provide seamless data integration and analysis.
Technology readiness level
Currently at TRL 5, the technology has been validated in complex fluids and in peer-reviewed studies. A six-month validation plan is underway, focusing on sensor optimization, biofluid testing, and system demonstration to further establish feasibility and reliability.
About Iowa State University
Iowa State University is a large, comprehensive public land‑grant research university based in Ames, known for combining fundamental discovery with translational, industry‑relevant work. Companies collaborate through a research and technology park that co‑locates corporate R&D with faculty labs and startups, creating steady talent pipelines. Pilot‑scale facilities, field test sites, and a statewide extension network support prototyping, validation, and deployment with partners across the region. Research is supported by competitive federal funding, including awards from NSF, USDA, and DOE. A dedicated technology transfer office and affiliated research foundation streamline IP, licensing, and startup formation, with incubator space on site.
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