Fungal Memristors: Mushroom Networks Power the Future of Bioelectronics

Researchers at The Ohio State University have discovered that mushrooms could shape the future of sustainable computing. Their study shows that edible fungi, such as shiitake mushrooms, can act as organic memristors—tiny components that “remember” past electrical signals, much like a human brain.

Computing Inspired by Nature

Fungal networks, or mycelium, can process and store data in ways similar to silicon chips. However, they are biodegradable, energy efficient, and low-cost. Lead researcher John LaRocco explains that these living circuits need very little power when inactive, helping to reduce the massive energy demands of modern data centres.

Unlike traditional semiconductors, fungal systems grow naturally and don’t rely on rare-earth minerals or energy-intensive manufacturing. Once dried and connected to circuits, mushroom tissues conduct and respond to electricity, mimicking how neurons send signals in the brain.

Circular and Sustainable Electronics

The team tested shiitake-based memristors and found they could switch between electrical states nearly 6,000 times per second, with around 90% accuracy. Performance dropped at higher frequencies but improved when several mushrooms were connected. This shows how easily fungal systems can scale up to handle more complex tasks.

These results suggest that fungal computing could power neuromorphic (brain-like) devices, wearable electronics, or interactive materials. Because the components are organic, they can break down safely, helping reduce electronic waste and supporting circular design.

Opportunities for Designers

The study also opens new possibilities for architects, product designers, and fashion or wearable designers. Fungal materials could inspire responsive surfaces, smart textiles, or interactive installations that react to light, heat, or touch. Larger fungal networks may be useful in aerospace applications, while smaller systems could enhance autonomous devices or sensors.

Co-author Qudsia Tahmina notes that this project shows how innovation can work with nature. “Society is becoming more aware of the need to protect our environment,” she says. “Ideas like this point towards a future where technology and biology grow together.”

Source: The Ohio State University
Photo: John LaRocco