Electrocatalytic characteristics of electrodes based on ferritin/carbon nanotube composites for biofuel cells
2011-12-15 11:19:30 조회수800
Ho Jin Shin a, Kwang Min Shin a, Ji Won Lee a, Cheong Hoon Kwon a, Sung-Ho Lee a, Sun I. Kim a, Ju-Hong Jeon b, Seon Jeong Kim a, 1. Center for Bio-Artificial Muscle and Department of Biomedical Engineering, Hanyang University, Seoul 133-791, Republic of Korea 2. Department of Physiology, Seoul National University, Seoul 110-744, Republic of Korea 원문 링크 :


A single wall carbon nanotube (SWNT)/ferritin/glucose oxidase (GOx) layer on a glassy carbon electrode acting as a biofuel cell anode was fabricated using an SWNT/ferritin composite as an electron transfer mediator from the enzyme to the electrode. In the absence of glucose, the SWNT/ferritin/GOx composite showed a higher current response than an SWNT/GOx composite, and the electrocatalytic oxidation of glucose on the anode increased linearly with increasing concentration of glucose. The highly distributed SWNT/ferritin composite as a platform for enzyme immobilization resulted in an enhanced electrocatalytic activity towards glucose. The SWNT/ferritin composite showed an enhanced electron transfer from the enzyme to the electrode; therefore, SWNT/ferritin/GOx composites can be used as an anode in biofuel cells.

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