Hierarchically driven IrO2 nanowire electrocatalysts for direct sensing of biomolecules.
Hierarchically driven IrO2 nanowire electrocatalysts for direct sensing of biomolecules.
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DOI：
10.1021/ac300573b
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发表时间：
2012-03
影响因子：
7.4
通讯作者：
J. Shim;Yumin Lee;Minkyung Kang;Jaeyeon Lee;J. M. Baik;Youngmi Lee;Chongmok Lee;M. Kim
中科院分区：
文献类型：
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作者：
J. Shim;Yumin Lee;Minkyung Kang;Jaeyeon Lee;J. M. Baik;Youngmi Lee;Chongmok Lee;M. Kim
将纳米器件制造技术应用于生物分子，研制出超灵敏、高选择性、高稳定性和高可靠性的化学或生物微传感器，已成为生命科学领域最具吸引力的研究方向之一。在这里，我们介绍了直接在铂（Pt）微丝，这允许一个简单的电流型传感器的制造和分层驱动的二氧化铱（IrO（2））纳米线，显示出良好的电子特性，传感过氧化氢（H（2）O（2））和二氢烟酰胺腺嘌呤二核苷酸（NADH）没有酶的帮助。这种基于在电极上直接形成分级一维（1-D）纳米结构的纳米级结构的合理工程可以为高性能电化学生物传感器提供有用的平台，从而能够高效，超灵敏地检测生物学重要分子。
Applying nanoscale device fabrications toward biomolecules, ultra sensitive, selective, robust, and reliable chemical or biological microsensors have been one of the most fascinating research directions in our life science. Here we introduce hierarchically driven iridium dioxide (IrO(2)) nanowires directly on a platinum (Pt) microwire, which allows a simple fabrication of the amperometric sensor and shows a favorable electronic property desired for sensing of hydrogen peroxide (H(2)O(2)) and dihydronicotinamide adenine dinucleotide (NADH) without the aid of enzymes. This rational engineering of a nanoscale architecture based on the direct formation of the hierarchical 1-dimensional (1-D) nanostructures on an electrode can offer a useful platform for high-performance electrochemical biosensors, enabling the efficient, ultrasensitive detection of biologically important molecules.