Catalytically and biologically active silver nanoparticles synthesized using essential oil
Vidya Vilas1, Daizy Philip2, Joseph Mathew3
1Department of Physics, Mar Ivanios College, Thiruvananthapuram 695015, India; Department of Chemistry, Mar Ivanios College, Thiruvananthapuram 695015, India.
Summary
This study introduces a green synthesis of silver nanoparticles using Myristica fragrans essential oil. The resulting nanoparticles exhibit significant catalytic, antibacterial, and antioxidant properties.
Area of Science:
- Green Chemistry
- Nanotechnology
- Biochemistry
Background:
- Phytosynthesis of silver nanoparticles (AgNPs) is a growing field, utilizing phytochemicals for reduction and stabilization.
- Developing explicit, environmentally benign protocols for catalytically and biologically active AgNPs is crucial.
- Essential oils, rich in bioactive compounds, offer potential for green synthesis.
Purpose of the Study:
- To report a green synthesis of silver nanoparticles using the essential oil of Myristica fragrans.
- To characterize the synthesized biogenic silver nanoparticles (AgNPs).
- To evaluate the catalytic, antibacterial, and antioxidant activities of the AgNPs.
Main Methods:
- Synthesis of AgNPs using Myristica fragrans essential oil.
- Characterization using FTIR, GC-MS, UV-Vis spectroscopy, XRD, and TEM.
- Evaluation of catalytic activity via para-nitrophenol reduction and methylene blue degradation.
- Assessment of antibacterial activity using the Agar-well diffusion method against Staphylococcus aureus and Escherichia coli.
- Determination of antioxidant activity through various assays (NO scavenging, DPPH, etc.).
Main Results:
- FTIR and GC-MS confirmed the presence of terpenes and phenyl propenes involved in synthesis.
- UV-Vis SPR band observed around 420 nm.
- XRD and TEM revealed pure, crystalline AgNPs of 12-26 nm size.
- Demonstrated excellent catalytic activity in degrading organic pollutants.
- Exhibited significant antibacterial activity against Gram-positive and Gram-negative bacteria.
- Showcased strong antioxidant potential through multiple assays.
Conclusions:
- Myristica fragrans essential oil is effective for the green synthesis of catalytically and biologically active silver nanoparticles.
- The synthesized biogenic AgNPs possess desirable physicochemical properties and significant antimicrobial and antioxidant capabilities.
- This study highlights a sustainable and efficient method for producing functionalized nanosilver for various applications.
