The interaction turns air-stable conductors into efficient, low-work function electrodes.

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When using the NovoTTF-100A System, a health care professional places electrodes on the surface of the patient's scalp to deliver low-intensity, changing electrical fields called "tumor treatment fields" (TTFs) to the tumor site.

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Today's electrodes do not reach very far into the spiral, which limits the perception of low frequencies.

ECONOMIST: Cochlear implants