Model of a Chemical Reaction Flip-flop with one Unique Switching Input

Abstract

The model of a flip-flop consisting of an interacting pair of completely equivalent chemical reaction systems (branches) is displayed. Beyond a critical threshold value of the influx to the apex substance of both branches the symmetric state (both branches active to an equal extent) is unstable; so essentially only one will be active. A negative pulse in the influx beneath the threshold brings the total system back towards the symmetric state. Introducing additional short reaction chains into both branches that cause a time delay in the rate of destruction of the end products generate an overshoot, so the opposite branch is active, when the pulse is over. Thus the same pulse can switch over the system in either direction opposite to the former state