Phytosynthesis of silver nanoparticles by Cissus quadrangularis: influence of physicochemical factors
By M. Vanaja, Gnanadhas Gnanajobitha, K. Paulkumar, S. Rajeshkumar, C. Malarkodi, G. Annadurai. Journal of Nanostructure in Chemistry, 2013
230 citations recorded by the source corpus.
Phytosynthesis process of silver nanoparticles using plant extract is simple, cost-effective, and ecofriendly. In this present investigation, we report the green nanoparticles prepared by using stem extract of Cissus quadrangularis and assess the physical and chemical factors such as time duration, metal ion concentration, pH, and temperature that play vital role in the nanoparticles synthesis. The maximum synthesis of silver nanoparticles was attained within 1 h, at pH 8 and 1 mM AgNO3 concentration, and 70°C. The nanoparticles obtained are characterized by UV–vis spectroscopy. Silver nanoparticles that were synthesized under these conditions show crystalline nature confirmed by X-ray diffraction and show mostly spherical and some rod and triangle shapes with sizes ranging from 37 to 44 nm, which were characterized by scanning electron microscopy. Fourier transform infrared spectroscopy shows that the functional groups are carboxyl, amine, and phenolic compounds of stem extract which are involved in the reduction of silver ions. Thus, synthesized silver nanoparticles show more antibacterial activity against Klebsiella planticola and Bacillus subtilis, which was analyzed by disc diffusion method.
Subfields: Materials Chemistry, Plant Science
View Paper: https://www.semanticscholar.org/paper/7f3fde390f8358a777cfd4d3b6fba2f22f2ae290
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In Materials Chemistry
Citations in the corpus
- GREEN TEA (CAMELLIA SINENSIS) MEDIATED SYNTHESIS OF ZINC OXIDE (ZNO) NANOPARTICLES AND STUDIES ON THEIR ANTIMICROBIAL ACTIVITIES Original Article (2014, background): “Green synthesis procedures have several merits such as, simple, inexpensive, good stability of nanoparticles, less time consumption, non-toxic byproducts and large-scale synthesis [1, 2, 3, 4, 5, 6].”
- Biosynthesis of silver nanoparticles using stem bark extracts of Diospyros montana and their antioxidant and antibacterial activities (2018, background): “The turn in color from watery to brown color indicates the formation of AgNPs and this change may be due to the SPR (Surface Plasmon Resonance) of AgNPs in the reaction samples [30, 31].”