On Biomimetics by Lilyana Pramatarova

Chemical Robots
255

Ru(bpy) 3 2+

Ru(bpy) 3 3+

BrO^3 -

HBrO 2

Malonic acid

Br-

Products

Gel system

Oxidaized state

Ru(bpy) 3 3+

Ru(bpy) 3 2+ Reduced state

Gel volume

Temperature

Constant temperature

BZ reaction system

Self-oscillation

Fig. 1. Conventional oscillating gel.

Poly(NIPAAm-co-Ru(bpy) 3 )gel

Time

1min

Swelling

Gel length Deswelling Deswelling

Swelling

Fig. 2. Chemical structure and oscillating behavior of self-oscillating gel.