Coleus aromaticus leaf extract mediated synthesis of silver nanoparticles and its bactericidal activity

By M. Vanaja, G. Annadurai. Applied Nanoscience, 2013

453 citations recorded by the source corpus.

The utilization of various plant resources for the biosynthesis of metallic nanoparticles is called green nanotechnology, and it does not utilize any harmful chemical protocols. The present study reports the plant-mediated synthesis of silver nanoparticles using the plant leaf extract of Coleus aromaticus, which acts as a reducing and capping agent. The silver nanoparticles were characterized by ultraviolet visible spectroscopy, X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and the size of the silver nanoparticles is 44 nm. The bactericidal activity of the silver nanoparticles was carried out by disc diffusion method that showed high toxicity against Bacillus subtilis and Klebsiella planticola. Biosynthesis of silver nanoparticles by using plant resources is an eco-friendly, reliable process and suitable for large-scale production. Moreover, it is easy to handle and a rapid process when compared to chemical, physical, and microbe-mediated synthesis process.

Subfields: Biomedical Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/3d98b5d9632423924a643eba84d93a2bb002ba83

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In Biomedical Engineering

1. Uttam Chand Banerjee
2. Y. Chisti
3. B. Sandeep
4. S. Pola
5. Amit Mittal
6. Kero Jemal

In Materials Chemistry

1. B. Sandeep
2. Uttam Chand Banerjee
3. S. Pola
4. Amit Mittal
5. Y. Chisti
6. Kero Jemal
7. M. S. Mehata
8. A. Verma

Citations in the corpus

• Synthesis, Characterization, and Evaluation of the Antibacterial Activity of Allophylus serratus Leaf and Leaf Derived Callus Extracts Mediated Silver Nanoparticles (2017, background): “The weak oxygen signal may be due to X-ray emission from carbohydrates/proteins/enzymes present within the extracts [39] or possibility of silver oxide nanoparticles formation after synthesis of silver nanoparticles, which reacts withwater in the solution since the nanoparticles are highly reactive ”
• First report of biomimetic synthesis of silver nanoparticles using aqueous callus extract of Centella asiatica and their antimicrobial activity (2015, background): “2014), Cissus quadrangularis (Valli and Vaseeharan 2012), Coleus aromaticus (Vanaja and Annadurai 2012), Tithonia diversifolia (Tran et al.”
• Synthesis of metallic nanoparticles using plant extracts. (2013, background): “…peel Ag 35±2 nm (at 25 °C), 10±1 nm (at 60 °C); spherical Kaviya et al. (2011b) Coleus amboinicus Lour Ag 25.8±0.8 nm Subramanian (2012) Coleus aromaticus Ag 44 nm Vanaja and Annadurai (2012) Curcuma longa Ag – Sathishkumar et al. (2010) Cymbopogon sp. (lemongrass) Au 200–500 nm; spherical,…”