Evaluation of the Effects of Particle Sizes of Silver Nanoparticles on Various Biological Systems
| Autor: | Kyung-Seok Ko, In Chul Kong, Dong-Chan Koh |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
silver nanoparticles
Silver Metal Nanoparticles Germination 02 engineering and technology 010501 environmental sciences 01 natural sciences Plant Roots Sensitivity and Specificity Catalysis Silver nanoparticle Article lcsh:Chemistry Inorganic Chemistry Bioluminescence Bioassay Food science Physical and Theoretical Chemistry bioassays lcsh:QH301-705.5 Molecular Biology Spectroscopy 0105 earth and related environmental sciences EC50 chemistry.chemical_classification Bacteria Enzyme biosynthesis Organic Chemistry food and beverages toxicity General Medicine particle size 021001 nanoscience & nanotechnology Computer Science Applications Enzyme lcsh:Biology (General) lcsh:QD1-999 chemistry Shoot Luminescent Measurements Biological Assay 0210 nano-technology Plant Shoots |
| Zdroj: | International Journal of Molecular Sciences Volume 21 Issue 22 International Journal of Molecular Sciences, Vol 21, Iss 8465, p 8465 (2020) |
| ISSN: | 1422-0067 |
| Popis: | Seven biological methods were adopted (three bacterial activities of bioluminescence, enzyme, enzyme biosynthetic, algal growth, seed germination, and root and shoot growth) to compare the toxic effects of two different sizes of silver nanoparticles (AgNPs). AgNPs showed a different sensitivity in each bioassay. Overall, the order of inhibitory effects was roughly observed as follows bacterial bioluminescence activity &asymp root growth > biosynthetic activity of enzymes &asymp algal growth > seed germination &asymp enzymatic activity > shoot growth. For all bacterial activities (bioluminescence, enzyme, and enzyme biosynthesis), the small AgNPs showed statistically significantly higher toxicity than the large ones (p < 0.0036), while no significant differences were observed among other biological activities. The overall effects on the biological activities (except shoot growth) of the small AgNPs were shown to have about 4.3 times lower EC50 (high toxicity) value than the large AgNPs. These results also indicated that the bacterial bioluminescence activity appeared to be an appropriate method among the tested ones in terms of both sensitivity and the discernment of particle sizes of AgNPs. |
| Databáze: | OpenAIRE |
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