4.8 Article

Eggshell membrane-templated synthesis of 3D hierarchical porous Au networks for electrochemical nonenzymatic glucose sensor

期刊

BIOSENSORS & BIOELECTRONICS
卷 96, 期 -, 页码 26-32

出版社

ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2017.04.038

关键词

Hierarchical porous Au networks; Eggshell membrane; Bio-inspired synthesis; Nonenzymatic glucose sensor

资金

  1. National Natural Science Foundation of China [81472001, 31400851]
  2. Quanzhou 'Tong-Jiang Scholar' Program [D16008]
  3. Fujian 'Min-Jiang Scholar' Program [G16013]
  4. Fourth Health Education Joint Development Project of Fujian Province [WKJ2016-2-36]
  5. Advanced Research Fund of Quanzhou Normal University for Young Doctor [2016QBKJ03]

向作者/读者索取更多资源

Sensitive and accurate test of blood glucose levels is necessary to monitor and prevent diabetic complications. Herein, we developed a novel and sensitive non-enzymatic glucose sensing platform by employing 3D hierarchical porous Au networks (HPANs) as electrocatalyst for glucose oxidization. The HPANs were prepared through a bio-inspired synthesis method, in which the natural eggshell membrane (ESM) was introduced as template. The structure and properties of the as-prepared HPANs were characterized by a set of techniques, including scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDS), powder X-ray diffraction (XRD) and cyclic voltammetry (CV). The HPANs showed high catalytic activity towards glucose oxidization due to the unique structure. Inspiringly, the HPANs-based electrochemical glucose sensor could be driven at low potential (+0.1 V) and showed an outstanding performance for glucose determination with two linear ranges of 1-500 mu M and 4.0-12 mM, a limit of detection (LOD) of 0.2 mu M (3 sigma), and fast response time (less than 2 s). Moreover, the stability and anti-interference performance of developed sensor was also excellent, enabling its preliminary application in clinical sample (human serum) test. Significantly, this work offered an environmentally friendly method for fabricating 3D nanostructure by using ESM (a biowaste) as template, setting up a typical example for producing new value-added nanomaterials with sensing application.

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