JOURNAL ARTICLE

Green synthesis of silver nanoparticles using Nelumbo nucifera seed extract and its antibacterial activity

Nguyen Thi Mai Tho, Tran Nguyen Minh An, Mai Dinh Tri, Thupakula Venkata Madhukar Sreekanth, Jae-Soon Lee, Patnamsetty Chidanandha Nagajyothi, Kap Duk Lee
Acta Chimica Slovenica 2013, 60 (3): 673-8
24169723
Silver nanoparticles (AgNPs) were synthesized using a Nelumbo nucifera dry seed extract, which is a simple, non-toxic, eco-friendly "green material". The synthesized nanoparticles were confirmed by the color changes and characterized by UV-visible spectroscopy. The AgNPs were stable at room temperature for 2 months. Scanning electron microscopy (SEM) revealed the formation of well-dispersed and spherical shapes. Transmission electron microscopy (TEM) of the synthesized AgNPs showed the formation of spherical nanoparticles, 5.03-16.62 nm in size. Fourier transform infrared spectroscopy (FTIR) indicated the involvement of amine, aromatic and alkynes groups in the synthetic process. X-ray diffraction (XRD) confirmed the crystalline nature of AgNPs. These AgNPs were highly toxic to found to Gram negative bacteria.

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