  A key task in the emerging field of bioelectronics is the transduction
between ionic/protonic and electronic signals at high fidelity. This is a
considerable challenge since the two carrier types exhibit intrinsically
different physics and are best supported by very different materials types --
electronic signals in inorganic semiconductors and ionic/protonic signals in
organic or bio-organic polymers, gels or electrolytes. Here we demonstrate a
new class of organic-inorganic transducing interface featuring semiconducting
nanowires electrostatically gated using a solid proton-transporting hygroscopic
polymer. This model platform allows us to study the basic transducing
mechanisms as well as deliver high fidelity signal conversion by tapping into
and drawing together the best candidates from traditionally disparate realms of
electronic materials research. By combining complementary n- and p-type
transducers we demonstrate functional logic with significant potential for
scaling towards high-density integrated bioelectronic circuitry.
