One-pot fabrication of Fe-doped carbon nitride nanoparticles as peroxidase mimetics for H2O2 and glucose detection
| Autor: | Bixia Yao, Yuhui Weng, Jiaqi Xian, Yan Li, Hantao Guo, Wen Weng |
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| Rok vydání: | 2019 |
| Předmět: |
Detection limit
Aqueous solution biology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Horseradish peroxidase Atomic and Molecular Physics and Optics 0104 chemical sciences Analytical Chemistry Catalysis chemistry.chemical_compound chemistry biology.protein Glucose oxidase Fourier transform infrared spectroscopy 0210 nano-technology Instrumentation Carbon nitride Spectroscopy Peroxidase Nuclear chemistry |
| Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 215:218-224 |
| ISSN: | 1386-1425 |
| DOI: | 10.1016/j.saa.2019.02.046 |
| Popis: | Iron-doped carbon nitride nanoparticles (Fe-CNNPs) were prepared from citric acid, urea and ferric chloride through a convenient one-pot solvothermal method. Oleic acid was used as the reaction medium. The morphology and chemical composition of the obtained Fe-CNNPs were characterized by multiple methods including transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FT-IR). It is interesting to find that the Fe-CNNPs showed higher catalytic activity than horseradish peroxidase (HRP), and tetramethylbenzidine (TMB) can be catalytically oxidized in the presence of H2O2 to produce a color change in aqueous solution. As H2O2 can be generated in the oxidation process of glucose catalyzed by glucose oxidase (GOD), a novel sensitive method for the detection of glucose with a limit of detection (LOD) of 0.29 μM has been developed combined with the catalytic properties of GOD and Fe-CNNPs. The Fe-CNNPs with peroxidase mimetics activity may have potential applications in biotechnology field. |
| Databáze: | OpenAIRE |
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