With carbon nanotubes, a path to flexible, low-cost sensors: Potential applications range from air-quality monitors to electronic skin

Researchers are showing the way toward low-cost, industrial-scale manufacturing of a new family of electronic devices. A leading example is a gas sensor that could be integrated into food packaging to gauge freshness, or into compact wireless air-quality monitors. Flexible pressure and temperature sensors could be built into electronic skin. All these devices can be made with carbon nanotubes, sprayed like ink onto flexible plastic sheets or other substrates.

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