Nanostructured Acetylcholinesterase (ACHE) Memristor/Memcapacitor Mimicks Brachyhypopomus Electric Fish's Signal-Cloaking Behavior

摘要

The Brachyhypopomus Electric (BHE) fish is known for its signal-cloaking behavior that allows it to avoid predators by shifting its electroreceptive pulses from low frequency to less detectable high-frequency through a phase-delay "head-tail" Electric Organ Discharge (EOD) with an energy saving consumption. We report a new type of Memristor/Memcapacitor device that performs signal-cloaking, which mimics BHE's behavior based on a self-assembled nanoisland structured biomimetic acetylcholinesterase (ACHE) gorge Membrane Electrode Assembling (MEA) on a gold electrode, another MEA has a "flat bridge"/nanopore membrane. The device has an asymmetric engineering design that allows electron nonlinear tunneling as Memcapacitor #1. Memcapacitor #2 was made of a mutated gorge of ACHE, which renders the device unable to perform signal-cloaking. We observed the memcapacitor #2 has a disturbed circular current with toroidal movement forming a nonferroelectromagnetic field with orders of magnitude enhancement of electric charge over various phases from 45 to 3150 was observed. By comparing the results of discharges at 25 and 1000 Hz, the "BHE" fish reduced the energy consumption by 14% and 33% by emitting "head-tail" "EOD" at 1 kHz, respectively.