MIT engineers turn living bacteria into circuit boards that can perform computer-like calculations

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MIT engineers turn living bacteria into circuit boards that can perform computer-like calculations

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August 21, 2026

MIT researchers have engineered bacteria that function as living transistors, creating chemical circuit boards printed onto Petri dishes. Using two transistor types and three relay strains, the team built circuits capable of complex logic, including addition and signal routing. Slower than electronics but suited to biological timescales, the system could one day let plants sense and respond to drought or pests.

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MIT engineers turn living bacteria into circuit boards that can perform computer-like calculations

MIT engineers turn living bacteria into circuit boards that can perform computer-like calculations