| 학회 |
한국공업화학회 |
| 학술대회 |
2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
26권 1호 |
| 발표분야 |
포스터-무기재료 |
| 제목 |
Detecting H2O2 with High Sensitivity Using Nanozymes with Heme Cofactor-Like Fe–N Single Site Embedded Graphene |
| 초록 |
Nanozymes' catalytic activity has increased substantially in the previous decade, but their selectivity has remained poor, posing a significant obstacle. Fe–N4 single site embedded graphene (Fe–N-rGO), which replicates the heme cofactor present in natural horseradish peroxidase, has a 700-fold greater peroxidase-like catalytic efficiency than undoped rGO and exceptional selectivity toward target H2O2 without any oxidizing activity. Importantly, when Fe or N is doped alone or when Fe is replaced with another transition metal in the Fe–N4 site, the activity of nanozymes does not significantly increase, implying that mimicking the essential cofactor structure of natural enzymes may be required to design the catalytic features of nanozymes. |
| 저자 |
최대은1, 이진우1, 이준상1, 한정우2, 김문일3
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| 소속 |
1한국과학기술원, 2포항공과대, 3가천대 |
| 키워드 |
나노자임; 철; 질소; 단일원자; 효소 모방; 촉매
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| E-Mail |
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