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Incheon National University in South Korea has developed biodegradable sensors capable of detecting nitrogen dioxide, a harmful air pollutant linked to respiratory diseases. These sensors utilize Organic Field-Effect Transistors, combining organic semiconductor P3HT and biodegradable polymer PBS, allowing them to dissolve harmlessly after disposal.

The sensors demonstrated high sensitivity and performance, crucial for applications such as wearable technology. This advancement addresses the dual challenges of air pollution and electronic waste, marking a shift towards sustainable electronics. The cost-effective manufacturing process enables mass production, indicating a future where environmental monitoring is widespread and eco-friendly.