Logic Gate Circuit grown in a Rose đŸŒč

rose

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An der Uni Linköping haben sie ein leitfĂ€higes Polymer in die Xylems (sowas wie Leiterbahnen einer Pflanze fĂŒr Wasser und NĂ€hrstoffe) gegeben und damit eine Transistor-Rose gebaut, ein Pflanzen-Cyborg, mehr oder weniger. Mit der Electro-Rose haben sie dann auch Logische Operationen durchgefĂŒhrt, eine Rose als Logic Gate also. Rose AND/OR Thornes. Poetischer Nebeneffekt: WĂ€hrend der Experimente mit anderen Polymeren wechselten die BlĂ€tter der Rose ihre Farben und fingen an zu leuchten.

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The idea of putting electronics directly into trees for the paper industry originated in the 1990s while the LOE team at Linköping University was researching printed electronics on paper. Early efforts to introduce electronics in plants were attempted by Assistant Professor Daniel Simon, leader of the LOE's bioelectronics team, and Professor Xavier Crispin, leader of the LOE's solid-state device team, but a lack of funding from skeptical investors halted these projects.

Thanks to independent research money from the Knut and Alice Wallenberg Foundation in 2012, Professor Berggren was able to assemble a team of researchers to reboot the project. The team tried many attempts of introducing 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 transistor that converts ionic signals to electronic output. Using the xylem transistors she also demonstrated digital logic gate function.

Paper: Electronic plants