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In a 2015 laboratory demonstration, researchers built organic electronic circuits and devices inside living plants. In roses, conductive polymer formed wire-like paths in the xylem, while polymer-containing regions in leaves changed color under voltage. These were proof-of-concept experiments—not electronics found in ordinary roses or products available for plant growers.
How plant structures became part of the circuit
Plants already contain networks of vessels, leaves, veins, and electrical and ionic signals. Rather than attaching conventional circuit boards to a plant, Eleni Stavrinidou and colleagues used plant structures as templates and components for organic electronic devices. Organic electronic materials can couple electronic and ionic signals, a property relevant to interfacing electronics with biological systems.
The team reported analog and digital organic electronic circuits and devices manufactured in living plants. The xylem—the plant tissue that transports water—could guide conductive material through vascular channels. Leaves provided a surface and internal structure for electrochromic elements, whose color changes in response to voltage.
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Conductive paths and transistor-like logic in stems
As summarized by Chemistry World in 2015, a cut rose took up an aqueous solution containing a PEDOT variant through its xylem. Polymerization produced conductive material in the vascular channels. The report described wires up to 10 cm long; that figure refers to experimental wires, not a commercial specification.
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The researchers also reported organic electrochemical transistor structures with logic-gate functionality. This showed that plant-formed conductive paths could do more than carry a signal: they could form part of a transistor-like circuit.
Voltage-controlled color in leaves
The team also infiltrated leaves with a PEDOT variant and cellulose nanofibres. Applying voltage changed the color of polymer-containing regions, demonstrating electrochromic behavior—an electrically induced color change—within leaf tissue.
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What the study did not establish
The experiments establish laboratory proof of concept: devices and circuits were made in living plants. They do not show that roses in ordinary cultivation contain electronics, that the devices are ready for routine plant monitoring, or that a commercial product is available.
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When and where the research appeared
The work, “Electronic plants,” by Stavrinidou and colleagues, was published in Science Advances, volume 1, issue 10, article e1501136, on 20 November 2015. The paper is available through PubMed Central. Its abstract describes the result as “analog and digital organic electronic circuits and devices manufactured in living plants.”
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