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| Content Provider | IET Digital Library |
|---|---|
| Author | Luo, Qiushui Su, Weiwei Li, Haimin Xiong, Jianhua Wang, Wenjun Yang, Wuying Du, Juan |
| Abstract | Biosynthesis of silver nanoparticles (AgNPs) by flavonoids extracts from petals of Lilium casa blanca was reported. Reaction conditions such as pH, concentration of flavonoids or silver nitrite, reaction temperature and reaction time were optimised to control the formation of the AgNPs. Synthesised AgNPs were characterised by UV–Vis spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS), zeta potential measurement and Fourier transform infrared (FT-IR) spectroscopy. Stability, antibacterial and catalytic activities of the synthesised AgNPs were also discussed. The optimum synthetic conditions were 10 mL 20 mM AgNO3 added to 1 mL flavonoids extracts, adjusting pH to 10, and reacted at 70°C for 1 h. The formation of AgNPs was confirmed by UV–Vis spectroscopic analysis, which showed maximum absorption peak at 404 nm. TEM analysis revealed spherical particles with size about 12.7 nm. FT-IR spectra revealed flavonoids were present on the surface of the AgNPs. AgNPs showed highest antibacterial activity against Escherichia coli and Salmonella, and the lesser antibacterial activity of AgNPs was found against Bacillus subtilis and Staphylococcus aureus. The biosynthesised AgNPs showed good catalytic activity as well by hydroboration of p-nitrophenol. Catalytic reduction followed pseudo-first-order kinetic. |
| Starting Page | 824 |
| Ending Page | 828 |
| Page Count | 5 |
| Volume Number | 13 |
| e-ISSN | 17500443 |
| Issue Number | Issue 6, Jun (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/mnl/13/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/mnl.2018.0055 |
| Journal | Micro & Nano Letters |
| Publisher Date | 2018-06-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Activation Energies Alloys Antibacterial Activity Bacillus Subtilis Biomedical Material Biosynthesised Silver Nanoparticles Brillouin And Rayleigh Scattering Catalysis Catalytic Activity Catalytic Reduction Condensed Matter Dynamic Light Scattering Electrochemistry And Electrophoresis Electrokinetic Effects Escherichia Coli Flavonoid Concentration Flavonoid Extracts Fourier Transform Infrared Spectra Fourier Transform Infrared Spectroscopy FTIR Spectroscopy Heterogeneous Catalysis at SurFace And Other Surface Reactions Infrared And Raman Spectra in Metals Light Scattering Lilium Casa Blanca Petals Low-Dimensional Structure: Growth, Structure And Nonelectronic Property Measurement of Chemical Rate Constants Microorganisms Nanofabrication Nanomedicine Nanoparticle Nanotechnology Application in Biomedicine Nanotube And Nanostructured Material Optical Property of Metals And Metallic Alloy Organic Compound P-nitrophenol Hydroboration Particle Size PH Pseudofirst-order Kinetics Reaction Condition Reaction Cross Sections Reaction Mechanisms Reaction Rate Constants Reaction Temperature Reaction Time Reduction (Chemical) Salmonella Semimetals Silver Compound Silver Nitrite Specific Chemical Reactions Spherical Particle Staphylococcus Aureus Structure of Solid Clusters TEM Temperature 70 DegC Time 1 H Transmission Electron Microscopy Ultraviolet Spectra UV-visible Spectroscopy Visible And Ultraviolet Spectra of Metals Visible Spectra Zeta Potential Measurement |
| Content Type | Text |
| Resource Type | Article |
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