Calixarene Assisted Rapid Synthesis of Silver-Graphene Nanocomposites with Enhanced Antibacterial Activity
| Autor: | David J. Morgan, Giulio I. Lampronti, Sébastien P. Facq, Suela Kellici, Tobias Heil, Nicholas P. Power, John Acord, Arni Vaughn |
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| Rok vydání: | 2016 |
| Předmět: |
Staphylococcus aureus
Materials science Silver Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention Nanocomposites symbols.namesake X-ray photoelectron spectroscopy law Spectrophotometry Spectroscopy Fourier Transform Infrared medicine CHFS Escherichia coli General Materials Science QD Nanocomposite medicine.diagnostic_test Graphene 021001 nanoscience & nanotechnology 0104 chemical sciences Anti-Bacterial Agents Chemical engineering Transmission electron microscopy symbols Graphite Calixarenes 0210 nano-technology Raman spectroscopy Powder diffraction |
| Zdroj: | ACS applied materialsinterfaces. 8(29) |
| ISSN: | 1944-8252 1944-8244 |
| Popis: | Demonstrated herein is a single rapid approach employed for synthesis of Ag–graphene nanocomposites, with excellent antibacterial properties and low cytotoxicity, by utilizing a continuous hydrothermal flow synthesis (CHFS) process in combination with p-hexasulfonic acid calix[6]arene (SCX6) as an effective particle stabilizer. The nanocomposites showed high activity against E. coli (Gram-negative) and S. aureus (Gram-positive) bacteria. The materials were characterized using a range of techniques including transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV–vis spectrophotometry, FT-IR, and X-ray powder diffraction (XRD). This rapid, single step synthetic approach not only provides a facile means of enabling and controlling graphene reduction (under alkaline conditions) but also offers an optimal route for homogeneously producing and depositing highly crystalline Ag nanostructures into reduced graphene oxide substrate. |
| Databáze: | OpenAIRE |
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