Ultralow voltage, OTFT-based sensor for label-free DNA detection.

Lai, S; Demelas, M; Casula, G; Cosseddu, P; Barbaro, M; Bonfiglio, A · Adv Mater · 2013

basic_science · Level V

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Abstract

An organic ultralow voltage field effect transistor for DNA hybridization detection is presented. The transduction mechanism is based on a field-effect modulation due to the electrical charge of the oligonucleotides, so label-free detection can be performed. The device shows a sub-nanometer detection limit and unprecedented selectivity with respect to single nucleotide polymorphism.

Medical subject headings