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Published on: August 18, 2020
Biosynthesis of silver nanoparticles using sun-dried mulberry leaf
Qing Wang1, Wenjuan Yang, Xiaohai Yang
1State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China.
Journal of Nanoscience and Nanotechnology
|July 23, 2011
Summary
Researchers synthesized silver nanoparticles (AgNPs) using mulberry leaves, creating stable, uniform nanoparticles with antibacterial properties for medical use.
Area of Science:
- Nanotechnology
- Biotechnology
- Materials Science
Background:
- Silver nanoparticles (AgNPs) exhibit potent antimicrobial properties.
- Developing eco-friendly synthesis methods for AgNPs is crucial for sustainable applications.
- Mulberry leaf extracts contain bioactive compounds with potential reducing and stabilizing capabilities.
Purpose of the Study:
- To biosynthesize silver nanoparticles (AgNPs) using sun-dried mulberry leaf extract.
- To characterize the synthesized AgNPs using various spectroscopic and microscopic techniques.
- To evaluate the stability and antibacterial activity of the biosynthesized AgNPs.
Main Methods:
- Biosynthesis of AgNPs via reduction of silver nitrate using mulberry leaf extract.
- Characterization using UV-visible spectroscopy, FT-IR spectroscopy, HRTEM, and AFM.
- Assessment of AgNP stability in high-concentration NaCl solutions.
- Evaluation of antibacterial activity against relevant pathogens.
Main Results:
- Spherical, uniform, and well-dispersed AgNPs were successfully synthesized.
- The synthesized AgNPs demonstrated excellent stability, resisting aggregation in high salt concentrations.
- Significant antibacterial activity was observed for the biosynthesized AgNPs.
- Polyols and protein residues in mulberry leaf extract were identified as key stabilizing agents.
Conclusions:
- Mulberry leaf extract is an effective and eco-friendly agent for AgNP biosynthesis.
- The synthesized AgNPs possess desirable properties, including stability and antibacterial efficacy.
- These AgNPs hold promise for applications in the medical and antibacterial fields.
