  Molecular communication (MC) is a bio-inspired communication method based on
the exchange of molecules for information transfer among nanoscale devices.
Although MC has been extensively studied from various aspects, limitations
imposed by the physical design of transceiving units have been largely
neglected in the literature. Recently, we have proposed a nanobioelectronic MC
receiver architecture based on the nanoscale field effect transistor-based
biosensor (bioFET) technology, providing noninvasive and sensitive molecular
detection at nanoscale while producing electrical signals at the output. In
this paper, we derive analytical closed-form expressions for the capacity and
capacity-achieving input distribution for a memoryless MC channel with a
silicon nanowire (SiNW) FET-based MC receiver. The resulting expressions could
be used to optimize the information flow in MC systems equipped with
nanobioelectronic receivers.
