Mushroom based flexible electronics

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Mushroom-Based Electronics
Flexible
E-waste, also known as electronic garbage, is a
significant pollutant and is becoming an
alarming issue. However, researchers have
processed mushroom skin such that it can be
utilized to create biodegradable electronics.
These gadgets are called Myceliotronics, named
after the component of a mushroom used in their
manufacturing. These gadgets emerge as a
substitute for materials that are difficult to
recycle and non-biodegradable, potentially
eradicating all the e-waste we make. How to Use
fungus in electronics? Mycelium skins can be used
as substrates for electronic devices, physicists
and materials scientists in Austria have
revealed. The thin skins can create autonomous
sensing devices consisting of mycelium batteries,
a humidity and proximity sensor, and a Bluetooth
communication module. Besides providing a
flexible surface for electrical circuits to be
patterned, the skins are biodegradable and can
help cut electronic waste. The researchers
produced the mycelium skins from the fungus
Ganoderma lucidum, which grows on dead hardwood
in mild temperate climates. They used physical
vapor deposition to place a thin layer of copper
and gold on the skin to create electronic
circuits. Metal was removed from this surface
layer via laser ablation, leaving conducting
paths behind. Paper Like Skins After deposition
and laser ablation of the metal layer, the
researchers tested the resulting mycelium
circuit boards. They found that they had high
conductivity and thermal stability and could
withstand around 2000 bending cycles before the
shredding of metal film began and electrical
resistance increased. The skins could also be
folded several times with only a moderate
increase in resistance. Next, the researchers
created a flat, 2 cm2 mycelium battery, using a
mycelium skin soaked in a highly ion-conducting
electrolyte solution (ammonium chloride and zinc
chloride) as the separator and two mycelium skins
as the outer casing. They claim that this
structure resulted in a high percentage of the
battery being biodegradable. For more
information, please visit _at_ https//www.iebrain.co
m/mushroom-based- flexible-electronics/
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