デンドリマー側鎖を有するコバルトポルフィリンを表面修飾した電極系の酸素センサーとしての検討

抄録

Cobaltporphyrins having dendrimer side-chains were synthesized, and the oxygen-sensing properties of the modified electrode systems evaluated by electrochemical measurement. Such cobaltporphyrins catalyzed the twoelectron reduction of oxygen on electrodes. As oxygen sensors in modified electrode systems, (i) the current of oxygen reduction increased linearly with the concentration of dissolved oxygen, (ii) the response was reversible and rapid, and (iii) the modified electrode systems were more stable than the cobaltporphyrin monomermodified electrode under hydrodynamic conditions. These results support the potential of modified electrode systems as oxygen sensors.