基于银纳米粒子修饰的碳纳米管的非酶电化学传感器。
Non-Enzymatic Electrochemical Sensor Based on Sliver Nanoparticle-Decorated Carbon Nanotubes.
机构信息
Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, Anhui, China.
School of Biomedical Engineering, Shenzhen University Healthy Science Center, Shenzhen 518060, Guangdong, China.
出版信息
Molecules. 2019 Sep 19;24(18):3411. doi: 10.3390/molecules24183411.
The authors report a non-enzymatic electrochemical sensor based on a sliver nanoparticle-decorated carbon nanotube (AgNPs-MWCNT). Highly-dispersed AgNPs were loaded on the MWCNT surface though a simple and facile two-step method. The morphology, components, and the size of the AgNPs-MWCNT nanocomposite were characterized by transmission electron microscopy, X-ray diffraction, and ICP analysis. Benefitting from the synergistic effect between the AgNPs and MWCNT, the AgNPs-MWCNT nanocomposite exhibited high electrocatalytic activity for HO; the AgNPs-MWCNT electrochemical sensor was prepared by coating the AgNPs-MWCNT nanocomposite on a glassy carbon electrode, and it showed a fast and sensitive response to HO with a linear range of 1 to 1000 μM. The detection limit was 0.38 μM (S/N = 3). The sensor was applied to detect HO in spiked human blood serum samples with satisfactory results.
作者报道了一种基于银纳米粒子修饰的碳纳米管（AgNPs-MWCNT）的无酶电化学生物传感器。通过简单易行的两步法，将高度分散的 AgNPs 负载在 MWCNT 表面。通过透射电子显微镜、X 射线衍射和 ICP 分析对 AgNPs-MWCNT 纳米复合材料的形貌、组成和尺寸进行了表征。AgNPs-MWCNT 纳米复合材料得益于 AgNPs 和 MWCNT 之间的协同效应，对 HO 表现出高电催化活性；通过将 AgNPs-MWCNT 纳米复合材料涂覆在玻碳电极上制备了 AgNPs-MWCNT 电化学生物传感器，该传感器对 HO 具有快速灵敏的响应，线性范围为 1 至 1000 μM。检测限为 0.38 μM（S/N = 3）。该传感器用于检测加标人血清样品中的 HO，结果令人满意。
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