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Nanosilver particle production using juglans regia L. (Walnut) leaf extract
Hassan Korbekandi1, Gholamreza Asghari2, Susan Sadat Jalayer3
1Department of Genetics & Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, IR Iran.
Jundishapur Journal of Natural Pharmaceutical Products
|March 14, 2014
Summary
Green synthesis of silver nanoparticles using walnut leaf powder is efficient. Different preparation methods of Juglans regia extracts impact nanoparticle formation and characteristics.
Area of Science:
- Green Chemistry
- Nanotechnology
- Biotechnology
Background:
- Biosynthesis of nanoparticles is an eco-friendly approach.
- Plant extracts are effective in nanoparticle synthesis.
Purpose of the Study:
- Evaluate silver nanoparticle production using Juglans regia leaf extract.
- Compare different plant extract preparation methods for nanoparticle generation.
Main Methods:
- Synthesized silver nanoparticles using AgNO3, plant extract/powder, glucose, and buffer.
- Analyzed colloidal suspensions using UV-visible spectrophotometry and Transmission Electron Microscopy (TEM).
Main Results:
- Direct application of walnut leaf powder yielded the most efficient synthesis.
- Powder method produced aggregated, quasi-spherical nanoparticles (10-50 nm).
- Ethanolic extract produced smaller, monodisperse nanoparticles (1-5 nm) without aggregation.
Conclusions:
- Preparation methods of Juglans regia significantly influence silver nanoparticle formation.
- Direct powder method maximizes particle yield.
- Ethanolic extract method yields smaller, non-aggregated nanoparticles.
