Reduction of Silver Ions by Cell Free Extracts of Westiellopsis sp.
| Autor: | P. T. V. Lakshmi, Devi Priyanka, A. Annamalai |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | International Journal of Biomaterials, Vol 2015 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1687-8787 1687-8795 |
| DOI: | 10.1155/2015/539494 |
| Popis: | Biosynthesis of silver nanoparticles using Westiellopsis sp. (A15), a filamentous cyanobacterium belonging to the family Fischerellaceae, has been demonstrated. Aqueous silver ions (Ag+) when exposed to the culture filtrate of Westiellopsis were reduced in the solution, which were characterized by biophysical measures utilizing the UV-Vis spectroscopy, scanning electron microscopy (SEM), and FTIR. The nanoparticles exhibited the maximum absorbance at 420 nm in UV-Vis spectroscopy, while the SEM micrograph revealed that the aggregated nanoparticles vary in size between 20 nm and 5 µm. However, the FTIR analysis provided evidence for presence of proteins in the filtrate to be involved in the reduction of silver ions. |
| Databáze: | Directory of Open Access Journals |
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