Extracellular synthesis of silver nanoparticles using dried leaves of pongamia pinnata (L) pierre
By R. Raut, Niranjan Kolekar, Jaya R. Lakkakula, V. Mendhulkar, S. Kashid. 2010
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Extract of oven dried leaves of Pongamia pinnata (L) Pierre was used for the synthesis of silver nanoparticles. Stable and crystalline silver nanoparticles were formed by the treatment of aqueous solution of AgNO3 (1mM) with dried leaf extract of Pongamia pinnata (L) Pierre. UV-visible spectroscopy studies were carried out to quantify the formation of silver nanoparticles. Transmission electron microscopy, X-ray diffraction and Fourier transform infrared spectroscopy were used to characterize the silver nanoparticles. TEM image divulges that silver nanoparticles are quite polydispersed, the size ranging from 20 nm to 50 nm with an average of 38 nm. Water soluble heterocyclic compounds such as flavones were mainly responsible for the reduction and stabilization of the nanoparticles. Silver nanoparticles were effective against Escherichia coli (ATCC 8739), Staphylococcus aureus (ATCC 6538p), Pseudomonas aeruginosa (ATCC 9027) and Klebsiella pneumoniae (clinical isolate). The move towards extracellular synthesis using dried biomass appears to be cost effective, eco-friendly to the conventional methods of nanoparticles synthesis.
Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry, Organic Chemistry
View Paper: https://www.semanticscholar.org/paper/ab20b24cc15e225657b6cace9f5608b853226168
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Citations in the corpus
- Biogenic synthesis of silver nanoparticles using Nicotiana tobaccum leaf extract and study of their antibacterial effect (2011, background): “The study also describes antimicrobial activity of nanoparticles against many Gram negative and Gram positive microorganisms (Raut et al., 2010).”
- A review on green synthesis of silver nanoparticles and their applications (2017, background): “Ocimum tenuiforum, Azadirachta indica and Musa balbisiana AgNO3 Leaves extract Up to 200 Cubical, spherical and triangular (Banerjee et al. 2014) Vitex negundo AgNO3 Leaves extract 60 Spherical (Kathireswari et al. 2014) Pithophora oedogonia AgNO3 Algal extract 34.03 Hexagonal and cubical (Sinha et ”