Due to their excellent physicochemical properties and synergistic effect, graphene metallic
NPs based nanocomposites have gained significant attention in various technological fields including
catalysis. Here we demonstrate a single pot, facile and environmental friendly synthesis of catalytically
active palladium(Pd)@graphene nanocomposites (SP-HRG-Pd) by the simultaneous reduction of
graphene oxide (GRO) and PdCl2 using Salvadora persica L. (miswak) root extract (RE) as bioreductant.

Recently, graphene and graphene-based materials have been increasingly used for various biological applications due to their extraordinary physicochemical properties. Here, we demonstrate the anticancer properties and apoptosis-inducing ability of silver doped highly reduced graphene oxide nanocomposites synthesized by employing green approach. These nanocomposites (PGE-HRG-Ag) were synthesized by using Pulicaria glutinosa extract (PGE) as a reducing agent and were evaluated for their anticancer properties against various human cancer cell lines with tamoxifen as the reference drug.

Essential oil composition of Plectranthus asirensis grown in Saudi Arabia
was chemically analysed for the first time by various gas chromatography
techniques (GC–MS, GC–FID, Co–GC, LRI determination and database
and literature searches) using two different stationary phase columns
(polar and nonpolar). This analysis led to the characterisation of a total
of 124 components representing 98.5% of the total oil composition.
The results revealed that P. asirensis oil was mainly dominated by

Recently, green reduction of graphene oxide (GRO) using various natural materials, including plant extracts, has
drawn significant attention among the scientific community. These methods are sustainable, low cost, and are
more environmentally friendly than other standard methods of reduction. Herein, we report a facile and eco-friendly
method for the bioreduction of GRO using Salvadora persica L. (S. persica L.) roots (miswak) extract as a bioreductant.

In this study, anticorrosive properties of various extracts (methanolic, aqueous methanolic and water
extracts) of Anthemis pseudocotula for mild steel in 1.0 M HCl media is screened for the first time. Among
the various tested extracts, the methanolic extract of A. pseudocotula shows the highest corrosion
inhibition activity. Anticorrosive assay-guided isolation of this methanolic extract results in the isolation of
a highly potent anticorrosive compound, APB (luteolin-7-O-b-D-glucoside). The anticorrosive effects of

The lithiation of 2-(2,2-dimethyl-1,3-dioxolan-4-yl)ethyl diisopropylcarbamate
(1) is achieved freely by sec-butyllithium in diethylether with high lk-diastereoselectivity:
the bicyclic chelate complexes 3a and 3b are reacted with electrophiles to form optically
active precursors 4a and 4b with >95% diastereoselectivity. In addition, tertiary diamines
can undergo an external complexation in contest with the internal oxygen ligand, leading
to improved stereoselectivities. The further reactions of lithiated carbamates with trans

A green, one-step approach for the preparation of graphene/Ag nanocomposites
(PE-HRG-Ag) via simultaneous reduction of both graphene oxide (GRO) and silver ions
using Pulicaria glutinosa plant extract (PE) as reducing agent is reported. The plant extract
functionalizes the surfaces of highly reduced graphene oxide (HRG) which helps in
conjugating the Ag NPs to HRG. Increasing amounts of Ag precursor enhanced the density
of Ag nanoparticles (NPs) on HRG. The preparation of PE-HRG-Ag nanocomposite is

The antibacterial properties of nanoparticles (NPs) can be significantly enhanced by increasing the wettability or solubility of NPs in aqueous medium. In this study, we investigated the effects of the stabilizing agent on the solubility of silver NPs and its subsequent effect on their antimicrobial activities. Silver NPs were prepared using an aqueous solution of Pulicaria glutinosa plant extract as bioreductant. The solution also acts as a capping ligand.

The alcoholic extracts of eight plants namely Lycium shawii, Teucrium oliverianum, Ochradenus
baccatus, Anvillea garcinii, Cassia italica, Artemisia sieberi, Carthamus tinctorius, and Tripleurospermum
auriculatum grown in Saudi Arabia were studied for their corrosion inhibitive effect
on mild steel in 0.5 M HCl media using the open circuit potential (OCP), Tafel plots and A.C.
impedance methods. All the plant extracts inhibited the corrosion of mild steel in acidic media
through adsorption and act as mixed-type inhibitors.

facile and efficient route for the synthesis of highly reduced graphene oxide (PE-HRG) by the green
reduction of graphene oxide (GRO) using the Pulicaria glutinosa plant extract (PE). The phytomolecules
present in the P. glutinosa extract are not only responsible for the reduction of GRO, but also for the
functionalization of the surface of the PE-HRG nanosheets and stabilize them in various solvents,
thereby limiting the use of any other external and harmful chemical reductants and surfactants. The