October 11, 2019
The team tried many attempts of introducing
Scientists in Sweden have developed an ‘electronic’ rose by implanting circuits
inside the vascular system used to distribute water and nutrients in the plant.
Only one polymer, called PEDOT-S, synthesised by Dr Roger Gabrielsson,
successfully assembled itself inside the xylem channels as conducting wires,
while still allowing the electric faucet
Suppliers transport of water and nutrients."Previously, we had no good tools
for measuring the concentration of various molecules in living plants.The
infused polymer formed "pixels" of electrochemical cells partitioned by the
veins. By combining the wires with the electrolyte that surrounds these channels
she was able to create an electrochemical transistor, a transistor that converts
ionic signals to electronic output.Dr Eleni Stavrinidou used the material to
create long (10 cm) wires in the xylem channels of the rose."As far as we know,
there are no previously published research results regarding electronics
produced in plants.
Now we’ll be able to influence the concentration of the
various substances in the plant that regulate growth and development," said Ove
Nilsson, professor of plant reproduction biology and director of the Umea Plant
Science Centre.The group at the Laboratory of Organic Electronics, led by
Professor Magnus Berggren used the vascular system of living roses to build key
components of electronic circuits. Applied voltage caused the polymer to
interact with the ions in the leaf, subsequently changing the colour of the
PEDOT in a display-like device.Augmenting plants with electronic functionality
would make it possible to combine electric signals with the plant’s own chemical
processes. However, plants operate on a much slower time scale making
interacting with and studying plants difficult. No one’s done this before," he
said.Plants are complex organisms that rely on the transport of ionic signals
and hormones to perform necessary functions.
Using the xylem transistors she also
demonstrated digital logic gate function..Researchers at Linkoping University in
Sweden created analogue and digital electronics circuits inside living
plants.Researchers demonstrated wires, digital logic, and even displays elements
— fabricated inside the plants — that could develop new applications for organic
electronics and new tools in plant science.The research was published in the
journal Science Advances.
The team tried many attempts of introducing conductive
polymers through rose stems. Dr Eliot Gomez used methods common in plant biology
— vacuum infiltration —to infuse another PEDOT variant into the
leaves.Controlling and interfacing with chemical pathways in plants could pave
the way to photosynthesis-based fuel cells, sensors and growth regulators, and
devices that modulate the internal functions of plants, researchers said
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