Green synthesis of silver nanoparticles by seed of Phoenix sylvestris L. and their role in the management of cosmetics embarrassment

Abstract

Recently, green synthesis of silver nanoparticles has attracted much curiosity in the field of life science research. In the present study, we have reported a green method for synthesis of silver nanoparticles (AgNPs) using aqueous seed extract of Phoenix sylvestris L. The green synthesized nanoparticles were characterized by aids of dynamic light scattering, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Fourier transform-infrared.Further, the study demonstrate the comparative phytochemical analysis as well as antioxidant and antibacterial activity of the extract and Phoenix sylvestris seed generated nanoparticles against acne-causing pathogens, that is, by using a DPPH-scavenging assay and broth microdilution method as well as Kirby-Bauer Disk diffusion method (recommended by CLSI), respectively. Moreover, a concentration-dependent time-kill kinetic studies were also carried out to determine their antimicrobial activity. The seed extract was found a better antioxidant and AgNPs exhibited highly biocidal agent against both the test pathogens, when compared to aqueous extracts. The results obtained indicate that seed extract of P. sylvestris is suitable for synthesizing stable silver nanoparticles, which act as excellent antimicrobial agents with promising treatments for cosmetics embarrassment. ARTICLE HISTORY

Assessment of in vitro Antioxidative and Anti-Inflammatory Effect of Caesalpinia Bonducella Seed Stabilized Silver Nanoparticles

“…Notably, the CB seed AgNPs exhibited better reducing power than the standard Ascorbic acid as the extract was enriched with phytoconstituents. Still, the phytoconstituents like phenols also possess electron-donating antioxidant capacity (Qidwai et al, 2018). This result is in agreement with the attempt of (Dipankar et al, 2012), who reported similarly in Caesalpinia bonducella leaves AgNPs.…”

Algal biomass as a source for novel oral nano-antimicrobial agent

“…The DPPH free radical scavenging activity of SeNPs was determined using the method described here ( Qidwai et al, 2018 ) Typically, different concentration (10–50 μg/ml) of nanoparticles was mixed with 1 ml of 0.1 mM DPPH in methanol solution and 450 µl of 50 mM Tris-HCl buffer(pH 7.4), and incubated for 30 min. After incubation, the reduction in the number of DPPH free radicals was measured based on the absorbance at 517 nm.…”

Synthesis and characterization of β-cyclodextrin/carboxymethyl chitosan/hydroxyapatite fused with date seed extract nanocomposite scaffolds for regenerative bone tissue engineering

“…As the size of the particles was found to be function of the concentration of DSE, hence the DSE appeared to play a key role in controlling the size of particles 46,47 . These results were found to be in line with the previous literature indicating the role of DSE as size and shape modifying agent 35 .…”