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- Title
Intrinsic Peroxidase Catalytic Activity of Fe<sub>7</sub>S<sub>8</sub> Nanowires Templated from [Fe<sub>16</sub>S<sub>20</sub>]/Diethylenetriamine Hybrid Nanowires.
- Authors
Yao, Wei‐Tang; Zhu, Hai‐Zhou; Li, Wei‐Gu; Yao, Hong‐Bin; Wu, Yu‐Cheng; Yu, Shu‐Hong
- Abstract
Iron sulfide compounds are emerging as an important family of functional materials owing to their important properties and their applications in different technical fields. Well-defined Fe7S8 nanowires templated by thermal decomposition of [Fe16S20]/diethylenetriamine hybrid nanowires under an argon atmosphere are reported. As-prepared Fe7S8 nanowires show typical Michaelis-Menten kinetics and good affinity to both H2O2 and 3,3′,5,5′-tetramethylbenzidine. At pH 7.0, the constructed UV/Vis sensor showed a linear range for the detection of H2O2 from 0.5 to 150 μ M with a correlation coefficient of 0.9998. The H2O2 sensor based on the Fe7S8 nanowires shows a highly sensitive response and has better stability than horseradish peroxidase when exposed to solutions with different pH values and temperatures. These excellent properties make the as-prepared Fe7S8 nanowires powerful tools for potential applications as an 'artificial peroxidase' in biosensors and biotechnology.
- Subjects
IRON sulfides; NANOWIRES; HORSERADISH peroxidase; BIOSENSORS; BIOTECHNOLOGY
- Publication
ChemPlusChem, 2013, Vol 78, Issue 7, p723
- ISSN
2192-6506
- Publication type
Article
- DOI
10.1002/cplu.201300075