| 초록 |
We have developed a mediatorless glucose biofuel cell based on hybrid nanoflowers incorporating proteins including glucose oxidase (GOx), laccase, or catalase with copper phosphate. The nanoflowers were simply synthesized within 5 minutes at room temperature using sonication method but yielded greatly improved stability as well as highly retained activity by the proper incorporation of protein molecules inside the flower-like structure. With glucose as biofuel, GOx and laccase nanoflowers were applied to form enzyme anode and cathode, respectively, and catalase nanoflowers were additionally employed to catalyze the decomposition of hydrogen peroxide. Using the nanoflowers-based biofuel cell system, a significant amount of power density were obtained with excellent operational stability. Based on this result, we expect that this simple but efficient strategy can be readily extended to diverse applications in medical and environmental chemistry. |
