Periodic reciprocating motion of a polymer gel on an aqueous phase synchronized with the Belousov-Zhabotinsky reaction.

A self-oscillating gel induced by the Belousov-Zhabotinsky (BZ) reaction was investigated on an aqueous phase. When the Ru-catalyst in the gel was rapidly oxidized, the gel was accelerated in a direction opposite to the side of oxidation. The gel then returned to its original position while the Ru-catalyst in the gel was slowly reduced. To clarify the… (More)