Biogenic synthesis of antibacterial silver chloride nanoparticles using leaf extracts of Cissus quadrangularis Linn

Synthesis and antibacterial activity of stable bio-conjugated nanoparticles mediated by walnut (Juglans regia) green husk extract

“…[13,14] The relatively small size, homogeneity and spherical shape of the nanoparticles made by walnut green husk extract may propose new applications, as compared to nanoparticles made by other biogenic methods. [8][9][10][11][12] Optimisation of the biosynthesis process for large-scale production, including the kinetics and efficiency of the reaction, besides the size and shape of the obtained nanoparticles, is currently under investigation in our lab.…”

“…[11] The components present in the walnut green husk extract might be considered as the source of chloride in the reaction solution for the formation of AgCl-NPs. [3,12] FTIR spectroscopy was performed to identify the extract components attached to the synthesised nanoparticles and the data are shown in Figure 2. The regions indicated by arrows at 3409, 2930, 1604 and 633 cm ¡1 correspond to ÀOH, ÀCH, CHC and aromatic stretches, respectively, demonstrating the presence of considerable amounts of these residues in the samples which might be related to phenol and polyphenolic components present in the extract that can potentially act as capping and stabilising biomolecules in green synthesis of AgCl-NPs.…”

Antimicrobial activity of biogenic silver nanoparticles, and silver chloride nanoparticles: an overview and comments

“…Gopinath et al (2013) reported the synthesis of AgCl nanoparticles by leaf extract of Cissus quadrangularis Linn, and the crystalline nature of the synthesized AgCl nanoparticles was confirmed using XRD analysis showing the typical peaks at 2θ planes of the cubic AgCl nanoparticles (ICDD file no. 00-001-1013; ICSD Code 64734).…”

Optimised microwave-assisted biosynthesis of silver nanoparticles fromNothapodytes foetidaleaf extracts and its anti-microbial activities

“…The ZOIs for S. aureus and E. coli at 30 mg/mL concentrations were found to be comparatively higher than the values reported by Kumar et al [32] Similar antimicrobial activities of Ag NPs were earlier examined against B. subtilis and C. albicans by Sadhasivam et al [33] It has been reported that the antimicrobial activity of NPs is due to their positive charge creating an electrostatic attraction between the negatively charged cell membrane of microorganisms or due to the release of silver ions from Ag NPs, which act as bactericidal agents [33] or due to the penetration of Ag NPs into the bacteria, thereby damaging the cell membrane. [29,34] …”