Facile synthesis of go Id nanoparticles on propylamine functionalized SBA-15 and effect of surface functionality of its enhanced bactericidal activity against gram positive bacteria
The facile synthesis of an SBA-15-pr- super(+)NH sub(3).Au super(0) nano-hybrid material by spontaneous autoreduction of aqueous chloroaurate anions on propylamine functionalized SBA-15 was successfully demonstrated. The as-synthesized SBA-15-pr- super(+)NH sub(3).Au super(0) nano-hybrid material wa...
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| Veröffentlicht in: | Materials research express 2015-07, Vol.2 (7), p.1-10 |
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| creator | Bhuyan, Diganta Gogoi, Animesh Saikia, Mrinal Saikia, Ratul Saikia, Lakshi |
| description | The facile synthesis of an SBA-15-pr- super(+)NH sub(3).Au super(0) nano-hybrid material by spontaneous autoreduction of aqueous chloroaurate anions on propylamine functionalized SBA-15 was successfully demonstrated. The as-synthesized SBA-15-pr- super(+)NH sub(3).Au super(0) nano-hybrid material was well characterized using low and wide angle x-ray diffraction (XRD), N sub(2) adsorption-desorption isotherms, Fourier transform infrared (FTIR), transmission electron microscopy (TEM), scanning electron microscopy-energy dispersive x-ray spectroscopy (SEM-EDX), x-ray photoelectron spectroscopy (XPS), UV-Visible spectroscopy and atomic absorption spectroscopy (AAS). The activity of the nano-hybrid material as a potent bactericidal agent was successfully tested against Gram positive/negative bacteria viz. Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. The colony killing percentage of Gram positive bacteria was found to be higher than Gram negative bacteria due to the stronger electrostatic interaction between the positively-charged amine functionality of SBA-15 and the negatively charged functionality of the bacterial cell wall. |
| doi_str_mv | 10.1088/2053-1591/2/7/075402 |
| format | Article |
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The as-synthesized SBA-15-pr- super(+)NH sub(3).Au super(0) nano-hybrid material was well characterized using low and wide angle x-ray diffraction (XRD), N sub(2) adsorption-desorption isotherms, Fourier transform infrared (FTIR), transmission electron microscopy (TEM), scanning electron microscopy-energy dispersive x-ray spectroscopy (SEM-EDX), x-ray photoelectron spectroscopy (XPS), UV-Visible spectroscopy and atomic absorption spectroscopy (AAS). The activity of the nano-hybrid material as a potent bactericidal agent was successfully tested against Gram positive/negative bacteria viz. Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. 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The as-synthesized SBA-15-pr- super(+)NH sub(3).Au super(0) nano-hybrid material was well characterized using low and wide angle x-ray diffraction (XRD), N sub(2) adsorption-desorption isotherms, Fourier transform infrared (FTIR), transmission electron microscopy (TEM), scanning electron microscopy-energy dispersive x-ray spectroscopy (SEM-EDX), x-ray photoelectron spectroscopy (XPS), UV-Visible spectroscopy and atomic absorption spectroscopy (AAS). The activity of the nano-hybrid material as a potent bactericidal agent was successfully tested against Gram positive/negative bacteria viz. Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. The colony killing percentage of Gram positive bacteria was found to be higher than Gram negative bacteria due to the stronger electrostatic interaction between the positively-charged amine functionality of SBA-15 and the negatively charged functionality of the bacterial cell wall.</abstract><doi>10.1088/2053-1591/2/7/075402</doi><tpages>10</tpages></addata></record> |
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| source | IOP Publishing Journals; IOPscience extra; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | Atomic absorption analysis Bacillus subtilis Bacteria Escherichia coli Fourier transforms Nanostructure Pseudomonas aeruginosa Spectroscopy Staphylococcus aureus Synthesis Transmission electron microscopy X-rays |
| title | Facile synthesis of go Id nanoparticles on propylamine functionalized SBA-15 and effect of surface functionality of its enhanced bactericidal activity against gram positive bacteria |
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