Researchers at Linköping University in Sweden have created analog, and digital electronics circuits inside living plants.
The group at the Laboratory of Organic Electronics (LOE), used the vascular system of growing roses to build key components of electronic circuits.
The team tried many different approach’s to introduce conductive polymers through rose stems. Only one polymer, called PEDOT-S, synthesized by Dr. Roger Gabrielsson, successfully assembled itself inside the xylem channels as conducting wires, while still allowing the transport of water and nutrients.
Dr. Eleni Stavrinidou used the material to create long (10 cm) wires in the xylem channels of the rose. By combining the wires with the electrolyte that surrounds these channels she was able to create an electrochemical transistor, a type of transistor that converts ionic signals to electronic output. Using the roses xylem transistors,
------- she also demonstrated digital logic gate function!