One-pot synthesis of Ag@Cu yolk–shell nanostructures and their application as non-enzymatic glucose biosensors
| Autor: | Shuling Xu, Haibo Li, Sun Si-Xiu, Lei Wang, Qiaoli Yue, Jifeng Liu |
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| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Nanostructure Materials science Reducing agent Scanning electron microscope One-pot synthesis Nanotechnology General Chemistry Polymer Condensed Matter Physics Hydrothermal circulation chemistry Chemical engineering Transmission electron microscopy General Materials Science Biosensor |
| Zdroj: | CrystEngComm. 16:9075-9082 |
| ISSN: | 1466-8033 |
| DOI: | 10.1039/c4ce01074d |
| Popis: | In this report, Ag@Cu yolk–shell nanostructures have been synthesized through a facile one-pot hydrothermal method. The synthesis is based on the use of N,N-dimethylformamide (DMF) as both the reducing agent and solvent, in the presence of the polymer poly(vinylpyrrolidone) (PVP). The structure and composition of the yolk–shell nanostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive spectrometry (EDS). To study the formation process of the Ag@Cu yolk–shell nanostructures, the samples obtained at various stages of the growth process were studied by TEM and XRD, and a rational growth mechanism for the Ag@Cu yolk–shell nanostructures was proposed. The as-prepared Ag@Cu yolk–shell nanostructures were used to construct non-enzymatic glucose sensors. The detecting results show that the designed sensors have well-defined, stable and fast amperometric responses to glucose. |
| Databáze: | OpenAIRE |
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