Studies of the analysis and application of the non-linear oscillatory reaction

Abstract

The nerve and synapse system is known to generate and transmit electric pulses.It is a typical nonlinear phenomenon, which is why the oscillating membrane system has been especially studied as artificial models for the nerve and synapse system.A three-phase(W/O/W)liquid-membrane system with a surfactant is known to generate non-linear electric pulses whose periodicity is affected by co-existing chemical compounds.Such a response is similar to that of the synapse system, which transmits biochemical information from detecting organs to the brain in the form of electric pulses.At first, it was found that the high reproducibility and long-term stability of the observed oscillation in this system were achieved by changing the material as wel as the shape of the apparatus.This result indicates that the outer boundary of the W/O interface is involved in forming the oscillation.Secondly, different modes of oscillation were observed.A decrease in the pH of the aqueous phases was accompanied by the modes.The increased rates of proton concentration in each aqueous phase were found to differ in each mode.Based on these results, a mechanism for the oscillation was proposed, and the phenomenon was simulated by computer based on this mechanism.Thirdly, a novel multi-phase liquid-membrane system having three aqueous phases with a surfactant was found to exhibit synchronisation of the oscillation like in the nerve transmission system.