**4. Conclusion**

As for the VP-based self-oscillating polymer chain, we examined the influence of initial substrate concentrations of the BZ reaction on transmittance self-oscillation for the novel poly(VP-*co*-Ru(bpy)3) solution. As a result we noted that the width of the self-oscillation is much affected by the initial concentration of the BZ substrates. In addition, we clarified that the amplitudes of the transmittance self-oscillation is hardly affected by the initial concentrations of the BZ substrates. This tendency was not observed in the case of the AMPS-containing polymer solution. Furthermore, we demonstrated that the period of the transmittance self-oscillation can be controlled by the selection of the initial concentration of the BZ substrates.

Furethermore we succeeded in clarifying the influence of the initial concentration of the BZ substrates and the temperature on the period of the swelling-deswelling self-oscillation for the novel poly(VP-*co*-Ru(bpy)3) gel. The logarithmic plots of the period against the initial concentration of one BZ substrate under fixed the other two BZ substrates showed the good linear relationships. Moreover, the period of the self-oscillation increased with the increasing the temperature in accordance with Arrenius equation. The maximum frequency (0.5Hz) of the poly(VP-*co*-Ru(bpy)3) gel was 20 times as large as that of poly(NIPAAm-*co*-Ru(bpy)3 gel. Therefore, the period of the swelling-deswelling self-oscillation for the gel can be controllable in wide range by optimizing the initial concentration of the three BZ substrates and the temperature. In addition, we showed that the displacement of the self-oscillation for the gel has the trade-off relationship against the period of the selfoscillation.

Next, we introduced the new method of generating contraction waves in the functional gel, which controls the reaction diffusion system by flowing the CT solution into the hollow tubular gel. In order to realize this system, the poly(AAm-*co*-AAc) microphase-separated gels were synthesized with various mixture proportions of the water/acetone solvents. From the view of the swelling kinetics, we experimentally clarified that the suitable mixture proportion for the fast volume changes and the adequate robustness for solution sending. Also, we coupled the poly (AAm-*co*-AAc) microphase-separated tubular gel and the CT solution. Moreover, we successfully demonstrated the propagation of the acidic contraction region of the gel. In the next step, we will accomplish the entire chemical reaction networks for realizing a swelling from the acid contraction region, which leads to a contraction wave in the tubular gel. This research will be the first step for realizing the biomimetic chemical robot which causes a peristaltic locomotion.

Finally, we introduced the fabrication of nanofiber gel actuator with anisotropic internal structure by changing the flow rate in electrospinning. The developed gel generates bending and stretching motion according to the external pH. In order to drive the nanofiber gel actuator automatically, we focused on the pH oscillating reaction based on a bromate/sulfite/ferrocyanide reaction. As a result, we succeeded in causing the bendingstretching motion of the nanofiber gel actuator synchronized with the external pH oscillation. By analyzing the motion of the gel, we found that the gel actuator caused the pendulum-like motion. Moreover, we clarified that the displacement and period of the nanofiber gel were stable, which makes it promising as a molecular device for potential applications.
