Biosynthesis of palladium nanoparticles using Diospyros kaki leaf extract and determination of antibacterial efficacy

Abstract

Palladium, the building block of white gold, has been found to exhibit extraordinary properties in nanotechnological products produced in recent years. The most prominent feature of palladium is adsorbing and storing high levels of hydrogen. Therefore, the demand for palladium in the world increased excessively in the 2000s. In the present study, palladium nanoparticles (PdNPs) were biosynthesized by the extract of Diospyros kaki leaves as bio-stimulator. D. kaki, also called persimmon, was collected in a local area in Istanbul Turkey. PdNP formation was screened by analyzing UV-Vis spectrophotometer at 250-550 nm. The nanoparticles were characterized by scanning electron microscope which revealed that the biosynthesized PdNPs were in sizes ranging from 50 to 120 nm. Fourier transform infrared spectroscopy applied on both D. kaki leaf extract and PdNPs was used to decide on the reactive groups managing the reduction of the biosynthesized nanoparticles. Also, the PdNPs showed reasonably proficient antibacterial efficacy for both Escherichia coli and Staphylococcus aureus and the zones of inhibition were found as 18 and 10.5 mm, respectively.

Phytogenic Synthesis and Characterization of NiO-ZnO Nanocomposite for the Photodegradation of Brilliant Green and 4-Nitrophenol

“…b) exhibits characteristic FTIR peaks at 3466, 3010, 2971, 1715.53, 1424.33, 1357.03, 1220.84, 1092.54, 895.57, 793.91, and 529.54 cm −1 attributed to the stretching of O-H, C-H (aromatic), C-H (aliphatic), C � O, C � C, N-O in NO 3 , C-N of primary amine, and C-X (halogen), respectively[25]. e phenolic compounds in the leaf extract of D. kaki are responsible for the reduction of precursor's salt and capping of the metal cation, as shown in Figure2[26].…”

An Up-To-Date Review on Biomedical Applications of Palladium Nanoparticles

“…The antibacterial property of PdNPs was recently discovered and the reported data showed that PdNPs have a high potential for antimicrobial applications [31,33,46,47,[78][79][80]. As illustrated in Figure 1, the antibacterial mechanism of PdNPs included both physical and chemical modes.…”

“…They were applied for antioxidant, antibacterial, and antiproliferative activates on the human leukemia cell line [31]. PdNPs, which were synthesized by Diospyros kaki leaves, were in sizes ranging from 50 to 120 nm and showed strong antibacterial efficacy on Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) [46]. Porous PdNPs with rough protuberances were prepared a chaga mushroom (Inonotus obliquus) extract [27].…”

Green Synthesis of Transition-Metal Nanoparticles and Their Oxides: A Review

“…These phytochemicals are absorbed onto the surface of the nanostructures through π -electron interactions if other strong ligating agents are not present [ 100 , 103 , 104 ]. Once again, agglomeration was an issue faced by researchers, deeming the particles thermodynamically unstable as they are, by nature, finely divided mass [ 105 , 106 ].…”

“…These phytochemicals are absorbed onto the surface of the nanostructures through π-electron interactions if other strong ligating agents are not present [100,103,104]. Moreover, agglomeration was another issue faced by researchers, deeming them thermodynamically unstable as they are, by nature, finely divided mass [105,106]. Moreover, Sharmila et al (2017) conducted experiments that resulted in the successful synthesis of palladium nanoparticles by utilizing the aqueous leaf extract of Filicium decipiens.…”