Green synthesis of tea Ag nanocomposite hydrogels via mint leaf extraction for effective antibacterial activity
| Autor: | Emmanuel Rotimi Sadiku, Kokkarachedu Varaprasad, Gownolla Malegowd Raghavendra, Tippabattini Jayaramudu, John Amalraj, Konduru Mohana Raju |
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| Rok vydání: | 2017 |
| Předmět: |
Thermogravimetric analysis
Staphylococcus aureus Materials science Silver Scanning electron microscope Polyacrylamide Biomedical Engineering Biophysics Energy-dispersive X-ray spectroscopy Metal Nanoparticles Bioengineering Nanotechnology macromolecular substances 02 engineering and technology Chemistry Techniques Synthetic 010402 general chemistry complex mixtures 01 natural sciences Nanocomposites Polymerization Biomaterials chemistry.chemical_compound Nano Escherichia coli technology industry and agriculture Silver Nano Green Chemistry Technology Hydrogels 021001 nanoscience & nanotechnology 0104 chemical sciences Anti-Bacterial Agents Plant Leaves chemistry Chemical engineering Self-healing hydrogels 0210 nano-technology Antibacterial activity Mentha |
| Zdroj: | Journal of biomaterials science. Polymer edition. 28(14) |
| ISSN: | 1568-5624 |
| Popis: | In this report, we investigated the swelling behavior and antibacterial property of nanosilver composite hydrogels made from tea with polyacrylamide via a free-radical polymerization and green process technique. This is probably for the first time; tea-based nano silver composite hydrogels were developed. The composite hydrogels comprise embedded nano silver particles in the tea hydrogel matrix via a green process with mint leaf extract. The size of the nano silver particles in the hydrogel matrix was found to be 10 nm. The nano silver composite hydrogels formed and their blank hydrogels from the mint leaf were characterized by using ultraviolet-visible spectroscopy, scanning electron microscopy with energy dispersive spectroscopy, transmission electron microscopy, thermogravimetric analysis and X-ray diffraction studies. The nano silver composite hydrogels developed exhibit eminent antibacterial activity against Escherichia coli and Staphylococcus aureus. This clearly indicates that the nano silver composite hydrogels are potential candidates for antimicrobial applications. |
| Databáze: | OpenAIRE |
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