المنشورات و المؤلفات
Green and eco-friendly synthesis of palladium nanoparticles NPs is carried out under
facile and eco-friendly conditions using an aqueous solution of Salvadora persica L. (SP) root
extract (RE) as a bioreductant, which is commonly known as Miswak....
The synthesis of Palladium (Pd) nanoparticles by green methods has attracted remarkable
attention in recent years because of its superiority above chemical approaches, owing to its low cost
and ecological compatibility. In this present work, we...
Microbicidal potential of silver nanoparticles (Ag-NPs) can be drastically improved by
improving their solubility or wettability in the aqueous medium. In the present study, we report the
synthesis of both green and chemical synthesis of Ag-NPs, and...
The chemical composition of the essential oils of Plectranthus cylindraceus and Plectranthus
arabicus grown in Saudi Arabia were analyzed using gas chromatography techniques (GC–MS,
GC–FID, Co-GC, LRI determination, and database and literature...
The chemical components of essential oils derived from leaves and flowers of Lantana
camara growing in Saudi Arabia are analyzed for the first time using gas chromatography techniques
(GC–MS, GC–FID, Co-GC, LRI determination, and database and...
Suzuki-Miyaura coupling reaction catalyzed by the palladium (Pd)-based nanomaterials
is one of the most versatile methods for the preparation of biaryls. However, use of organic
solvents as reaction medium causes a big threat to environment due to...
The flowers and vegetative parts essential oils of Anvillea garcinii were analyzed by GC-FID and GC-MS using polar and nonpolar columns which led to the identification of total 140 compounds from both oils, among which 130 compounds were identified...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
The inhibitive effect of Launaea nudicaulis methanolic (MLN) and aqueous acidic (ALN) extracts on the corrosion of mild steel in 1.0 M HCl solution was investigated by using weight loss, Tafel plots, linear polarization, electrochemical impedance...
Green synthesis of nanomaterials finds the edge over chemical methods due to its environmental compatibility.
Herein, we report a facile and eco-friendly method for the synthesis of palladium (Pd) nanoparticles
(NPs) using an aqueous solution of...
The essential oil obtained from aerial parts of Myrtus communis grown in the central part of Saudi Arabia was
analyzed by gas chromatography-based techniques (GC–FID, GC–MS, Co–GC, LRI determination, database, and
literature search) using polar as...
Chemical investigation of ethanolic extract of M. grandiflora wood led to the isolation of seven secondary metabolites. Their structures were characterized as Erythro-1-C-syringylglycerol (1), 2,3-Dihydroxypropyltetracosanoate (2), 2,3-...
A simple and convenient synthetic method for the direct synthesis of a series of polysubstituted analogues of the putative antifungal agent 4-methyl-2-phenylquinoline, a mimic of the natural bioactive 4-methoxy-2-phenylquinoline is reported.
Two benzofurans (1, 2) along with five known compounds (3–7) were isolated from the seeds of S. obassia.
Their structures were elucidated as methyl 3-[7-methoxy-2-(3′,4′-methylenedioxyphenyl)-5-benzofuranyl]-
propionate (1), methyl 3-[2-(3′,4′-...
Biological and chemical investigations were carried out to evaluate the antimicrobial potential of Melaleuca genistifolia leaf oil for herbal medicines. The disk diffusion and micro broth dilution methods were used for the evaluation of the...
The leaf and stem of Callistemon polandii, on hydrodistillation, gave 0.008% and 0.004% of oils respectively on a fresh weight basis. GC and GC-MS analysis of the oils resulted in the identification of 60 and 44 constituents, representing 98.2% and...
The Et2O-soluble fraction from the bark of Magnolia kobus led to the isolation of two new lignans,
(þ)-(7a,7’a,8a,8’a)-3’,4,4’,5,5’-pentamethoxy-7,9’:7’,9-diepoxylignan-3-ol (1) and (þ)-(7a,7’a,8a,8’a)-
4,5-dimethoxy-3’,4’-(methylenedioxy)-7,9’: 7’,...
A new furofuran lignan (1) along with four knowns (2-5) were isolated from the bark of Magnolia kobus. Their structures were elucidated as (+)-2α-(3',4'-dimethoxyphenyl)-6α-(3"-hydroxy-4",5"-dimethoxyphenyl)-3,7-dioxabicyclo[3.3.0]octane (1), (+)-...
A new benzofuran, 5-(3"-propanoyloxypropyl)-7-methoxy-2-(3', 4'-methylenedioxyphenyl)-benzofuran (1) along with four known compounds (2-5) were isolated from the seeds of S. obassia. Their structures were established on the basis of their various...
The leaves of Indian yew Taxus wallichiana, growing in Gulmarg, Jammu and Kashmir, on hydrodistillation,
gave 0.025% oil on a fresh weight basis. GC and GC-MS analysis of the oil resulted in the identification
of 62 constituents, representing 93.3%...
The essential oil composition of Murraya exotica leaves and flowers from CIMAP Research Farm,
Lucknow, were analysed by GC and GC–MS, which resulted in the identification of 56 and 72 constituents, representing
99.8% and 99.2% of the oils,...
The essential oil composition of four accessions, C-62, P-17, C-45 and C-59, with control LK of Mentha
× piperita, cultivated at the CIMAP Research Farm, Lucknow, were analysed by GC and GC–MS, which resulted in the
identification of 61, 74, 67, 68...
The chemical composition of fruits and stem essential oils of Lantana camara from the northern
plains of India were analysed by GC and GC–MS, which resulted in the identification of 52 and 66 constituents,
representing 98.1% and 96.6% of the oils,...
The essential oil composition of four genetically diverse stocks of Murraya koenigii leaves cultivated
at the CIMAP Research Farm, Lucknow, were analysed by GC and GC–MS. The oil from the stock of the northern
Indian plains, Lucknow, showed ˇ-pinene...
The chemical composition of leaves and flowers essential oils of Lantana camara from India were analysed by GC and GC–MS, which resulted in the identification of 71 and 64 constituents, representing 99.0% and 97.0% of the oils, respectively. The...
The green synthesis of metallic nanoparticles (NPs) has attracted tremendous attention in recent years because these protocols are low cost and more environmentally friendly than standard methods of synthesis. In this article, we report a simple and...
The leaf and stem essential oils of Artemisia monosperma from the desert region of central Saudi Arabia were analysed by gas chromatography-based techniques (GC–FID, GC–MS, Co-GC, LRI determination, database and literature search) using polar as...
A facile and highly efficient microwave-assisted synthesis of functionalized chalcones and flavanones based on the Claisen-Schmidt condensation reaction is reported. The method describes the synthesis of flavanones in single step with excellent...
A simple and selective synthesis of 1,3-benzoxazine-2,4-dione and 4-methylene-1,3- benzoxazine-2-one derivatives is reported from the reaction of Schiff bases and triphosgene. The selective synthesis of those 1,3-benzoxazine derivatives were found...
Although a number of chemicals have been isolated from Strychnos nux-vomica, only a few have been evaluated for their biological significance. As a part of our drug discovery programme for cytotoxic agents from Indian medicinal plants, a novel...
Phytochemical study of Fatsia japonica led to the isolation of seven secondary metabolites 1-7. Their structures were established as 3-O-α-L-arabinopyranosyl-hederagenin (1), 3-O-β-d-glucopyranosyl-hederagenin (2), 8-O-4/8-O-4-dehydrotriferulic acid...