期刊
ANALYTICAL CHEMISTRY
卷 87, 期 1, 页码 457-463出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac502682n
关键词
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资金
- National Natural Science Foundation of China (NSFC) [21173017, 51272011, 21275102]
- Program for New Century Excellent Talents in University [NWET-12-0610]
- science and technology research projects from education ministry [213002A]
- National Twelfth Five-Year Plan for Science & Technology Support [2013BAK12B06]
- Project of Thousand Talents of Chinese High-leveled Talents
- Knowledge Innovation Program of the Chinese Academy of Science [KJCX2-YW-M13]
Bimetallic AuCu nanowires (AuCuNWs) are synthesized via a facile water solution method at room temperature. Enhanced electrocatalytic activity is observed toward the oxidation of H2O2, which makes the AuCu nanowire, along with its unique catalytic properties, intriguing bifunctional mechanism, and surface atomic construction, a promising platform for the amplification of interfacing signal. A highly sensitive H2O2 biosensor is thus developed on the base of the as-prepared AuCuNW catalyst. A very low real determination limit (2.0 nM) was reached, and a linear range as wide as 5 orders of magnitude was demonstrated. In addition, a trace amount of H2O2, which was released from Raw 264.7 cells, was selectively detected, hinting at the possible applications for real-time quantitative detection of H2O2 in a biological environment.
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