THE MULTIFARIOUS WORLD OF BZ OSCILLATORS

The paper gives an overview of the variegated behavior of the Belousov -Zhabotinsky reacting system. It is demonstrated that this relatively simple redox process can exhibit a large variety of temporal-spatial p henomena. Under stirred conditions concentration oscillations manifest themselves; in an unstirred reagent chemical waves start to propagate . If the waves are either physically or chemically disrupted, various spiral structures and in gels scroll-waves form. Sustained chemical wa ves and sustained spiral waves can also be generated and under special conditions (on the surface of an ion-exchanger bead) the moving along of twisted oxidation zones of chemical activity is observable. Connec tions between chemo- and biooscillators are briefly touched upon.