Conducting polymers just keep getting better. This week, Sayani Majumdar at Åbo Akademi University in Finland and pals say they’ve used using an inkjet printer to print a plastic circuit onto a plastic substrate that clearly shows magnetoresistance at room temperature.

That means they can print plastic microchips capable of sensing magnetic fields.  Cool, huh?

Ref: arxiv.org/abs/0809.3864: Towards Printed Magnetic Sensors Based on Organic Diodes

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