Enhanced Biosensing of Bisphenol A Using a Nanointerface Based on Tyrosinase/Reduced Graphene Oxides Functionalized with Ionic Liquid
| Autor: | Yinghua Deng, Yanying Wang, Yina Huang, Guishen Liu, Rui Li, Chunya Li, Xiaodong Hou |
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| Rok vydání: | 2015 |
| Předmět: |
Detection limit
Bisphenol A Materials science Graphene 010401 analytical chemistry Inorganic chemistry Oxide 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Analytical Chemistry Electrochemical gas sensor Dielectric spectroscopy law.invention chemistry.chemical_compound chemistry law Ionic liquid Electrochemistry 0210 nano-technology Biosensor Nuclear chemistry |
| Zdroj: | Electroanalysis. 28:96-102 |
| ISSN: | 1040-0397 |
| Popis: | Reduced graphene oxide (rGO) nanosheets functionalized with 1,3-di(4-amino-1-pyridinium) propane tetrafluoroborate ionic liquid (DAPPT) was successfully synthesized and fully characterized. DAPPT-rGO nanosheets were coated to a glassy carbon electrode (GCE) surface to immobilize tyrosinase (Tyr). The Tyr-DAPPT-rGO/GCE was characterized with scanning electronic microscopy and electrochemical impedance spectroscopy. The biosensor shows a linear response to bisphenol A (BPA) in the concentration range of 1.0×10−9∼3.8×10−5 mol L−1. The detection limit was calculated to be 3.5×10−10 mol L−1 (S/N=3). The practical application was demonstrated by determining BPA leaching from commercial plastic drinking bottles. |
| Databáze: | OpenAIRE |
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