Highly Efficient Electrochemical Detection of Phenolic Compounds Utilizing Superior Catalytic Activity of Nanohybrids Consisting of Magnetic Nanoparticles and Gold Nanoclusters
| Autor: | Seongyeon Cho, Moon Il Kim, Seong-Rok Kim |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
biology Biomedical Engineering Bioengineering Nanotechnology General Chemistry Electrochemical detection Cresol Condensed Matter Physics Fe3o4 magnetic nanoparticles Catalysis Nanoclusters chemistry.chemical_compound chemistry biology.protein medicine Magnetic nanoparticles Phenol General Materials Science Peroxidase medicine.drug |
| Zdroj: | Journal of nanoscience and nanotechnology. 18(2) |
| ISSN: | 1533-4880 |
| Popis: | Although Fe3O4 magnetic nanoparticles (MNPs) have gathered particular interest as potent peroxidase mimetics, their practical utility has been critically limited by their low catalytic activity. Here, we have developed a nanohybrid material to significantly enhance the catalytic activity of MNPs by incorporating other enzyme mimetics, gold nanoclusters (AuNCs), through electrostatic attraction. Owing to the synergistic effect of MNPs and AuNCs, the constructed nanohybrid yielded highly enhanced peroxidase-like activity and higher resolution in electrochemical detection of H2O2 than bare MNPs. The nanohybrids were also successfully applied to detecting phenolic compounds including phenol and cresol, producing a concentration-dependent increase of cathodic current. Based on this result, we expect that the nanohybrids consisting of AuNCs and MNPs can serve as potent peroxidase mimetics for environmental monitoring. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|