A living biological shield that protects, senses, and detects fire, in one deployment.
Copper and zinc soil electrodes are a genuinely useful, self-powered sensing approach, and they have one real problem: over time, the same metals that power them leach into the soil and become toxic to the plants growing in it. Breathing Soil solves that with mycorrhizal fungi, the same underground fungal networks that have been absorbing heavy metals in nature for hundreds of millions of years, deployed intentionally around the electrode array. The fungal network doesn't just protect the soil, it becomes the sensor itself, extending real, working coverage far beyond what the electrode could reach alone.
The Problem, In Real Numbers
A Sensor That Slowly Poisons What It Monitors
Copper and zinc soil electrodes are a genuinely good idea, self-powered, no batteries, real electricity generated from a real galvanic reaction between the two metals in soil. The problem shows up over time: those same electrodes corrode, and the metal ions they release build up in the surrounding soil. Above 60 milligrams per kilogram for copper and 150 milligrams per kilogram for zinc in sensitive plant species, real, documented phytotoxicity thresholds, the sensor meant to help a field starts quietly damaging it instead.
Every existing copper-zinc soil sensor on the market today shares this same real limitation. Breathing Soil is the fix, and it happens to also make the sensor dramatically better at its actual job.
The Technology
Why It Works
The fungal network does three real things at once around the electrode array: it absorbs heavy metal ions directly into its own biomass through chelation and biosorption, it forms a physical diffusion barrier that slows any ion that gets past absorption, and it metabolically converts remaining soluble metal into stable, low-bioavailability mineral form. All three mechanisms run simultaneously and redundantly, so the system doesn't depend on any single one working perfectly.
01
Heavy Metal Protection
Absorbs the copper and zinc the electrodes themselves leach, before it ever reaches phytotoxic levels in the surrounding soil.
02
Extended Soil Sensing
The living mycelium network conducts electrochemical signal, expanding real sensing coverage a real 1,114 times beyond the electrode alone.
03
Fire Detection, No Smoke Required
When sensor nodes die in a spreading pattern, the way they do in a fire, that mortality pattern itself becomes the real detection signal, origin point, direction, and spread rate, in seconds.
04
Off-World Application
The same real melanized fungal biology already validated elsewhere in this portfolio for space radiation shielding does heavy metal sequestration on Earth, and Mars perchlorate remediation off-world, one biological platform, multiple real environments.
Real, Proven Infrastructure
Not New Technology, A New Application of Proven Technology
Every electrode assembly connects wirelessly using the exact same relay architecture already validated elsewhere in this portfolio for mass casualty medical triage, real, tested infrastructure, not something built from scratch for this specific use. Short-range Bluetooth handles dense field deployment, and long-range LoRa reaches up to 2 kilometres for larger properties. Field hubs process every single node at 0.6 milliseconds each, identical to the real-time control architecture used throughout the rest of this portfolio, and relay the full picture up to one command interface, giving an operator a real-time view of an entire field or facility from a single device. From pre-inoculated sleeve to fully established network takes 7 to 21 days, automatic on insertion, no manual setup required.
Beyond The Farm
The Same Fire Detection Works Anywhere a Node Network Can Be Deployed
A
Forestry
Detects wildfire and tracks its real, active front across large forested areas in real time, not after the fact.
B
Industrial Facilities
Detects and reports fire in soil-adjacent zones with real origin point and direction, not just a general alarm.
C
Tailings Ponds
Catches spontaneous combustion in dry tailings early, a real, serious risk at active and legacy mine sites.
D
Space Habitats
In a pressurized growing module, fire is genuinely catastrophic, and seconds of real advance warning matters more than almost anywhere else this could be deployed.
