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Control of size and antimicrobial activity of green synthesized silver nanoparticles.
- Source :
-
Materials Letters . Dec2016, Vol. 185, p526-529. 4p. - Publication Year :
- 2016
-
Abstract
- A unique way to control the size and antibacterial activities of silver nanoparticles (Ag NPs) using three different leaf conditions (fresh, oven-dried and sun-dried) of Alstonia scholaris has been reported in this paper. The extract of the A. scholaris leaf acts both as a reducing and stabilizing agent in the formation of Ag nanoparticles. The characteristic surface plasmon peak (415 nm), X-ray diffraction (XRD) studies and energy dispersive spectroscopy (EDS) confirmed the formation of crystalline green Ag nanoparticles. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) revealed that there was a difference in size for the Ag NPs synthesized from different leaf conditions. Antibacterial studies with both Gram-positive and Gram-negative bacteria showed that Ag NPs synthesized from the fresh leaves displayed the best antibacterial activity, which can be attributed to the size effect of the nanoparticles. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 185
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 119510159
- Full Text :
- https://doi.org/10.1016/j.matlet.2016.07.114