Paper-based, capacitive touch pads.

Mazzeo, Aaron D; Kalb, William B; Chan, Lawrence; Killian, Matthew G; Bloch, Jean-Francis; Mazzeo, Brian A; Whitesides, George M · Adv Mater · 2012

basic_science · Level V

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Abstract

Metallized paper is patterned to create touch pads of arrayed buttons that are sensitive to contact with both bare and gloved fingers. The paper-based keypad detects the change in capacitance associated with the touch of a finger to one of its buttons. Mounted on an alarmed cardboard box, the keypad requires the appropriate sequence of touches to disarm the system.

Medical subject headings