What if the future of sustainable computing was growing on a decaying tree right now, powered not by silicon and rare-earth minerals, but by the same shiitake mushrooms you toss in your stir-fry? That's not entirely science fiction—it's the reality Ohio State University researchers have demonstrated in a study that's turning heads across the tech world, including in Silicon Valley where the research funder has deep roots.
Scientists at Ohio State have successfully transformed ordinary edible mushrooms into functioning computer memory devices, creating what they call "organic memristors" that can switch between electrical states thousands of times per second. The breakthrough, published October 10 in the journal PLOS ONE, represents a radical departure from conventional computing that could help address mounting concerns about electronic waste and energy consumption, according to Ohio State News.
Bay Area Tech Giant Backs Fungal Future
The research wasn't just a university lab experiment—it was supported by Honda Research Institute, which maintains a significant presence in San Jose, California. Honda's Silicon Valley operation focuses on material science, computer science, machine learning, and quantum sensing and computing, according to the company's website. The institute's backing signals serious industry interest in alternatives to conventional semiconductor technology as concerns mount about supply chains, environmental impact, and the massive energy demands of modern data centers.
"Being able to develop microchips that mimic actual neural activity means you don't need a lot of power for standby or when the machine isn't being used," lead researcher John LaRocco, a research scientist in psychiatry at Ohio State's College of Medicine, told Ohio State News. "That's something that can be a huge potential computational and economic advantage."
How Mushroom Memory Actually Works
The process sounds almost absurdly simple: researchers cultured shiitake and button mushrooms, dehydrated them for long-term stability, then connected them to electronic circuits. By applying various voltages to different parts of the mushroom, they discovered distinct electrical properties that could be harnessed for data storage, according to the PLOS ONE study.
"We would connect electrical wires and probes at different points on the mushrooms because distinct parts of it have different electrical properties," LaRocco explained in the Ohio State News report. "Depending on the voltage and connectivity, we were seeing different performances."
After two months of testing, the mushroom memristors achieved switching speeds of up to 5,850 signals per second with approximately 90% accuracy—impressive for organic material, though still far below the billions of cycles per second that commercial silicon chips achieve. Performance dropped at higher frequencies, but researchers found they could compensate by connecting more mushrooms to the circuit, much like how the brain connects multiple neurons, according to ScienceDaily.
The Environmental Case for Fungal Computing
The real advantage isn't raw speed—it's sustainability. Traditional semiconductor manufacturing requires rare-earth minerals, high-temperature fabrication processes, and enormous energy consumption. Fungal memristors are biodegradable, cheap to produce, and can be grown at room temperature, as reported by The Register.
"Mycelium as a computing substrate has been explored before in less intuitive setups, but our work tries to push one of these memristive systems to its limits," LaRocco said in the Ohio State News announcement.
Co-author Qudsia Tahmina, an associate professor in electrical and computer engineering at Ohio State, emphasized the environmental imperative driving this research. "Society has become increasingly aware of the need to protect our environment and ensure that we preserve it for future generations," she told Ohio State News. "So that could be one of the driving factors behind new bio-friendly ideas like these."
From Compost Heap to Space Station
The researchers envision surprisingly diverse applications. Larger mushroom systems could prove useful in edge computing and aerospace exploration, while smaller versions might enhance autonomous vehicles and wearable devices, according to the published study. Notably, shiitake mushrooms have demonstrated radiation resistance, suggesting viability for space applications where conventional electronics struggle.
"Everything you'd need to start exploring fungi and computing could be as small as a compost heap and some homemade electronics, or as big as a culturing factory with pre-made templates," LaRocco noted in the university's announcement. "All of them are viable with the resources we have in front of us now."
Critical Perspective: Hype vs. Reality
Despite the exciting potential, significant challenges remain. The devices need substantial miniaturization to be practical—current prototypes are far larger than needed for real-world applications. Growing mushrooms in controlled, scalable ways presents manufacturing challenges that semiconductor fabs have already solved for silicon, as noted by Gulf News.
The performance gap is also substantial. At 5,850 hertz, mushroom memristors operate at a tiny fraction of the speed of commercial chips. While energy efficiency matters for certain applications like wearable sensors or remote environmental monitoring, the technology is nowhere near ready to replace the processors in smartphones or data centers, according to analysis from Tom's Hardware.
Part of a Broader Bioelectronics Movement
This research fits within a growing field of bioelectronics that seeks to bridge biology and technology. Previous work has explored using slime molds for computing, bacterial systems for data storage, and even neural organoids for processing—though these require complex bioreactor maintenance that fungi sidestep, according to Interesting Engineering.
The convergence of neuromorphic computing (which mimics brain architecture) with sustainable materials represents a significant research trend, particularly as concerns about AI's energy consumption intensify. Recent studies have explored using various organic materials for similar purposes, from conductive polymers to natural biomaterials, as documented in recent academic reviews.
Why This Story Matters Now
While the research was published October 10, the timing is particularly relevant as the tech industry grapples with mounting environmental concerns and supply chain vulnerabilities. The semiconductor shortage of recent years exposed how dependent modern technology is on complex, fragile global supply chains. Mushroom-based computing won't solve these problems tomorrow, but it represents the kind of radical rethinking that could eventually diversify our technological toolkit.
The other Ohio State co-authors include Ruben Petreaca, John Simonis, and Justin Hill. The team's work suggests that fungal computing could transition from laboratory curiosity to practical application within the next decade—assuming significant advances in cultivation techniques and device miniaturization.
For now, your next computer won't be powered by shiitakes. But in a world where electronic waste is mounting and energy demands are skyrocketing, the idea that a mushroom could help solve our computing problems doesn't seem quite so wild.
