Testing the use of kombucha to make circuit boards

https://techxplore.com/news/2023-02-kombucha-circuit-boards.html

"creation of second symbiotic culture of bacteria and yeast (SCOBY) similar to how sourdough made using starter... mass of pliable cellulose fiber which when dried becomes fabric-like mat capable of conducting electricity. For the new study, they wondered if the mats used as backing for circuit boards in functional, wearable devices... retain shape when heated to 200°C... printed circuits onto mats using conductive polymers via aerosol jet printer and 3D printer"

Related:

Green electronics: Circuit boards from renewable raw materials

https://techxplore.com/news/2023-04-green-electronics-circuit-boards-renewable.html

Yeast uses plastic waste oils to make high-value chemicals

https://phys.org/news/2024-03-yeast-plastic-oils-high-chemicals.htm