固体酸を用いたBZゲルの挙動

抄録

Living organisms have autonomous motions that do not require the on-off switching of external stimuli such as heartbeats and brain waves. In order to realize soft actuators that can generate such autonomous motion, we are developing BZ gel actuators. The BZ gels are synchronized with the Belousov-Zhabotinsky (BZ) reaction. The BZ reaction requires strong acidic condition. which is dangerous to the human body with a low pH. In this study, we tried to drive BZ gels using solid acid instead of strong acidic solution, glucose and acetone. The oscillating behavior of the BZ gel at 20°C, 25°C, and 30°C was observed, and several cycles of oscillation were observed. Finally the pH of the whole solution was low. We assumed that the hydrogen ions of the solid acid were exchanged with sodium ions and diffused into the solution, causing the entire solution to become strongly acidic.