A team from Newcastle University and Northumbria Uaiversity in the UK has found that the thin, root -like threads produced by many fungi(真菌)can potentially be used as a biodegradable, wearable material that's also able to repair itself.
In their tests, the researchers focused on the Ganoderma lucidum fungus, producing a skin from branching thin threads, which together weave into a structure called a mycelium(菌丝体). With a little more work, the fragile skins could serve as a substitute for leather, satisfying environmental and fashion tastes.
"The results suggest that mycelium materials can survive in dry and unfavourable environments, and self-repairing is possible with minimal intervention after a two -day recovery period, "write the researchers in their published paper. However, the process used to produce these materials tends to kill off the fungal spores(孢子)hat help the organism regenerate itself.
A new approach involving a mix of mycelia, proteins, and other nutrients in a liquid encouraged the growth of a skin. The results are currently too thin and delicate to be tuned into a jacket. However, the researchers are confident that it's possible that future innovations could turn it into a tougher skin, possibly by combining layers or plasticizing in glycerol. Crucially, the production process didn't kill off the fungal spores. Tests on the material showed that it was indeed able to replace holes made in it. The material was as strong as before, though it was still possible to see where the holes had been.
"Due to their functional properties, the ability of this regenerative mycelium material to heal micro and macro defects opens interesting future prospects for unique product applications in leather-goods replacements such as furniture, automotive seals, and fashion wear, "write there searchers.
There's a long way to go here before you'll be wearing clothes made out of fungus. The growing and healing processes take several days to happen at the moment for example, something which could be sped up over time.
