Logic Gates with Ion Transistors

TL;DR

This paper demonstrates ion-based logic gates using electrochemical cells with modified batteries, advancing bio-chemical circuitry by creating self-powered ion logic gates with minimal biasing power.

Contribution

It introduces ion XOR and OR gates with electrochemical cells, incorporating a permeable mid electrode to control ion flow, enabling self-powered ion logic circuits.

Findings

Ion XOR and OR gates were successfully demonstrated.

The gates operate with significantly reduced biasing power.

Potential for self-powered bio-chemical circuitry was shown.

Abstract

Electronic logic gates are the basic building blocks of every computing and micro controlling system. Logic gates are made of switches, such as diodes and transistors. Ion-selective, ionic switches may emulate electronic switches [1-8]. If we ever want to create artificial bio-chemical circuitry, then we need to move a step further towards ion-logic circuitry. Here we demonstrate ion XOR and OR gates with electrochemical cells, and specifically, with two wet-cell batteries. In parallel to vacuum tubes, the batteries were modified to include a third, permeable and conductive mid electrode (the gate), which was placed between the anode and cathode in order to affect the ion flow through it. The key is to control the cell output with a much smaller biasing power, as demonstrated here. A successful demonstration points to self-powered ion logic gates.