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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Yang, Xuejuan Fan, Gungyin Wang, Yinhu Bai, Jing Jiang, Xiue |
| Description | Country affiliation: China Author Affiliation: Wang Y ( State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.) |
| Abstract | We report a novel hydrogen peroxide (H2O2) and hydrazine sensor based on low-cost poly(vinylpyrrolidone)-protected silver nanocubes (PVP-AgNCs). The monodisperse silver nanocubes were prepared by adding a trace amount of sodium sulfide in the conventional polyol synthesis for fast reduction of silver nitrate under protection of argon. The sensor was fabricated by simple casting of PVP-AgNCs aqueous solution on a glassy carbon electrode and the performance was evaluated by cyclic voltammetry and amperometric techniques. It was found that the resulting sensor exhibited extremely good performance toward H2O2 detection with wide linear response ranging from 0.05 to 70mM (R=0.996) at -0.3V and low detection limit of 0.18µM estimated at a signal-to-noise ratio of 3. In addition, the fabricated sensor also exhibited high sensitivity toward the detection of hydrazine with a low detection limit of 1.1µM, wide linear range from 0.005 to 0.46mM (R=0.999) at 0.4V and rapid amperometric response time of less than 2s. For both analytes, the sensor exhibited good reproducibility, selectivity and stability. The excellent performance of the sensor might be attributed to the enhanced electrochemical sensing property of well-defined PVP-AgNCs with rich {100} facets. |
| ISSN | 09565663 |
| Volume Number | 43 |
| e-ISSN | 18734235 |
| Journal | Biosensors and Bioelectronics |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2013-05-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Biosensing Techniques Instrumentation Conductometry Hydrazines Chemistry Hydrogen Peroxide Analysis Metal Nanoparticles Silver Equipment Design Equipment Failure Analysis Ultrastructure Particle Size Sensitivity And Specificity Journal Article Research Support, Non-u.s. Gov't Discipline Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology Medicine Biophysics Biomedical Engineering Biotechnology Electrochemistry |
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