Abstract:
:In nature, electrical signalling occurs with ions and protons, rather than electrons. Artificial devices that can control and monitor ionic and protonic currents are thus an ideal means for interfacing with biological systems. Here we report the first demonstration of a biopolymer protonic field-effect transistor with proton-transparent PdH(x) contacts. In maleic-chitosan nanofibres, the flow of protonic current is turned on or off by an electrostatic potential applied to a gate electrode. The protons move along the hydrated maleic-chitosan hydrogen-bond network with a mobility of ~4.9×10(-3) cm(2) V(-1) s(-1). This study introduces a new class of biocompatible solid-state devices, which can control and monitor the flow of protonic current. This represents a step towards bionanoprotonics.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Zhong C,Deng Y,Roudsari AF,Kapetanovic A,Anantram MP,Rolandi Mdoi
10.1038/ncomms1489subject
Has Abstractpub_date
2011-09-20 00:00:00pages
476issn
2041-1723pii
ncomms1489journal_volume
2pub_type
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