Podcasts · The Hardware Podcast with Fexingo: Chips, Devices, and Electronics Engineering Conversations
On-Chip Electrochemical Sensors for Real-Time Water Quality
· 8:31 · S3 E119
Episode On-Chip Electrochemical Sensors for Real-Time Water Quality
Lucas and Luna dive into on-chip electrochemical sensors that can detect heavy metals and contaminants in water in real time. They explore how MIT spinout Ionsense integrates microelectrode arrays with custom ASICs to achieve parts-per-billion sensitivity, why traditional lab testing takes days, and how this technology could enable affordable distributed water monitoring in places like Flint, Michigan, and rural India. Lucas explains the chemistry behind square-wave voltammetry, Luna questions scalability and cost, and they discuss the trade-offs between sensitivity and power consumption. By the end, you'll understand how a chip smaller than a fingernail could change the way we think about water safety.
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Transcript
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