Synthesis of AgNPs from leaf extract of Naringi crenulata and evaluation of its antibacterial activity against multidrug resistant bacteria

Aerva lanata flower extract mediated green synthesis of silver nanoparticles: Their characterization, in vitro antioxidants and antimicrobial investigations

“…The planes (111), (200), (220), and (311) corresponding peaks in the XRD patterns, which suggest that the floral extract of Alf‐AgNPs is crystalline and has a face‐centered cubic structure, provide further evidence of the presence of elemental silver in the sample. The present study's XRD patterns were found to be similar to those of the previously published reports 47,48 …”

“…patterns were found to be similar to those of the previously published reports. 47,48 The surface shape and size of the green synthesized Alf-AgNPs were determined by SEM analysis, and the varied particle sizes, at different magnifications, are shown in Figure 4. Information about the size, shape, and placement of the individual particles may be obtained using the electron microscopy method.…”

Synthesis of green-engineered silver nanoparticles using Cymbopogon citratus (lemongrass) and its antibacterial activity against clinical Pseudomonas aeruginosa

“…The previous visual observation was confirmed because the absorbance increased with the concentration of AgNO 3: 0.1A for 1 mM, 0.32 A for 2.5 mM, and 0.65 A for 5 mM. The tuning fork of the optimal absorptions of the different solutions confirmed the formation of AgNPs because most researchers agree that the absorption spectra of AgNPs have an absorbance peak between 400 and 500 nm [53][54][55][56][57][58][59]. Moreover, due to the deposit observed at the bottom of the tube containing the AgNPs synthesized with 5 mM AgNO 3 and the weak color of the AgNPs synthesized with 1 mM AgNO 3 , we decided to continue the study only with the AgNPs synthesized with 2.5 mM AgNO 3 .…”

Applications of Highly Stable Silver Nanoparticles from Garcinia mangostana Pericarp Extract: Bioactivities, Catalysis, and Optical Sensing

“…synthesized AgNPs from market vegetable waste with an average particle diameter of 43.6±2.23 nm, showing an inhibition zone diameter of 18.7 and 19 mm against K. pneumoniae and S. aureus , respectively, at 100 μg/mL [11] . At the same concentration, biosynthesized AgNPs using the N. crenulata leaf extract with a slightly smaller particle size (32.75 nm) exhibited zones of clearance as 15±0.9 and 17±0.8 nm towards the mentioned two bacterial strains, respectively [12] . Furthermore, as a catalyst agent in reduction reaction, AgNPs show high efficiency and account for an acceptable intermediate redox potential value between the donor and acceptor pairs, facilitating the electron transfer and acting as an electron relay system [13] .…”

“…[11] At the same concentration, biosynthesized AgNPs using the N. crenulata leaf extract with a slightly smaller particle size (32.75 nm) exhibited zones of clearance as 15 � 0.9 and 17 � 0.8 nm towards the mentioned two bacterial strains, respectively. [12] Furthermore, as a catalyst agent in reduction reaction, AgNPs show high efficiency and account for an acceptable intermediate redox potential value between the donor and acceptor pairs, facilitating the electron transfer and acting as an electron relay system. [13] Nowadays, studies have been carried out to deploy AgNPs as an efficient catalyst for the reduction process using NaBH 4 to decompose pollutants from water sources.…”