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| Content Provider | IET Digital Library |
|---|---|
| Author | Lai, Chin Wei |
| Abstract | In this research work, colloidal silver nanoparticles were successfully produced via an electrolysis method and their antibacterial activity was evaluated. This study aims to determine the optimum concentration of colloidal silver nanoparticles to produce an effective inhibition zone for Escherichia coli bacteria growth. Based on the results obtained, the applied current and reaction times during the electrolysis played a crucial role in determining the colloidal silver nanoparticles’ concentration (ppm). It was found that a minimum content of colloidal silver nanoparticles (0.02 ppm) was required to perform the 0.1 mm inhibition zone diameter on agar medium spread with E. coli bacteria. Interestingly, high concentrations of colloidal silver nanoparticles could exhibit high conductivity (µS/cm) as well as the high intensity of the maximum plasmon peak from the UV/vis absorption spectra at about 390 nm. In conclusion, this research work revealed the destruction of the cytoplasmic membrane and the rupture of the internal organisation of E. -coli bacteria, leading to the leakage of the cytoplasmic contents and cell death after having contact with sufficient concentration of colloidal silver nanoparticles. |
| Starting Page | 407 |
| Ending Page | 410 |
| Page Count | 4 |
| Volume Number | 13 |
| e-ISSN | 17500443 |
| Issue Number | Issue 3, Mar (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/mnl/13/3 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/mnl.2017.0805 |
| Journal | Micro & Nano Letters |
| Publisher Date | 2018-03-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Agar Medium Alloys Antibacterial Activity Antimicrobial Activity Biological Technique Biomembranes Biophysical Instrumentation And Technique Cell Death Cellular Biophysics Colloidal Silver Nanoparticles Colloids Cytoplasmic Membrane Effective Inhibition Zone Electrical Conductivity Electrical Property of Metals And Metallic Alloys (thin Films/low-dimensional Structures) Electrochemistry And Electrophoresis Electrolysis Escherichia Coli Bacteria Growth Exchange, Correlation, Dielectric And Magnetic Function, Plasmons Internal Organisation Rupture Maximum Plasmon Peak Microorganisms Nanofabrication Nanoparticle Nanotube And Nanostructured Material Natural And Artificial Biomembranes Optical Property of Metals And Metallic Alloy Physics of Subcellular Structure Plasmons Semimetals Silver Compound Structure of Solid Clusters Ultraviolet Spectra UV-vis Absorption Spectra Visible And Ultraviolet Spectra of Metals Visible Spectra |
| Content Type | Text |
| Resource Type | Article |
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