Volume 31, Number 4

Features of Obtaining Silver Nanoparticles in Non-Aqueos Media by Reduction of Silver Trifluoroacetate.

Introduction Recently, a large number of studies on the use of the composite materials containing metal nanoparticles have appeared in various areas of practical human activity. One of the main uses of silver nanoparticles...

Optimization of Sardine Oil Neutralization Process from Fish Meal Industry By-product

Introduction Indonesia has a high potency as a producer of fish oil because of its high aquatic resources. One source of fish oil was derived from by-products of sardine meal industry. Indonesia Ministry of...

Stability Indicating Method Development and Validation for the Estimation of Rotigotine by Rp-Hplc in Bulk and Pharmaceutical Dosage form

Introduction Rotigotine(ROTIGOTINE) is chemically named as 6-{propyl[2-(thiophen-2-yl)ethyl]amino}-5,6,7,8-tetrahydronaphthalen-1-ol. Rotigotine (Neupro) is a non-ergoline dopamine agonist indicated for the treatment of Parkinson’s disease (PD) and restless legs syndrome (RLS) in Europe and the United States. It...

Determination of doxazosinmesylate by ion-pair complex formation with bismuth (III) tetraiodide using spectrophotometric and atomic absorption spectroscopic

Introduction Background Doxazosinmesyalate[I] is a quinazoline compound that is selective inhibitor of the alpha 1 subtype of alpha adrenergic receptor A.  Benign Prostatic Hyperplasia (BPH) and used in treatment of hypertension.  Doxazosinmesylate may be...

Structural studies of UHMWPE composite materials containing nanoparticles of titanium, zirconium and hafnium oxides

Introduction One of the most promising structural materials – ultra-high molecular weight polyethylene (UHMWPE), which includes high-density polyethylene (HDPE) with a molecular weight of more than 106. It has a unique set of physical,...

Recent developments in Inorganic polymers: A Review with focus on Si-Al based inorganic polymers

Introduction Inorganic polymers, by name, stand for many non-organic monomers/repeating units. Distinguishing between inorganic and organometallic polymers depends on ones opinion. Simply put, inorganic polymers contain only inorganic repeating units, while the organometallics have...

Furfural Hydrogenation on Alloyed Copper Catalysts With Additives of Ferrosilicium

Introduction The results of numerous investigations that we conducted before [1-4], showed that ferroalloys-semi products of metallurgy plants may well be used as modifiers to increase the activity of alloyed  copper catalysts, furfural hydrogenation...

SWNTs and MWNTs (M=2) for Nano Drug Delivery: Temperature and Solvent effect

Introduction The highly electrophilic central carbon atom of the -N=C=S group reacts rapidly, and under mild conditions with oxygen-, sulfur-, or nitrogen centered nucleophiles to give rise to carbamates, thiocarbamates, or thiourea derivatives, respectively....

Chemical profiling of Centella asiatica under different extraction solvents and its antibacterial activity, antioxidant activity

Introduction Background Nowadays, there are increasing trends of using natural products. Interestingly, herbs are considered to be one of the alternatives consumers choose to use. Since prehistoric times, herbs were the basis for nearly...

Reduction of Carbonyl Compounds with Zn(BH4)2 Under Microwave Irradiation

Introduction Alcohols are important substrates in organic synthesis.So much synthetic methods have been reported by researchers. But, using of borohydride such as LiBH4, NaBH4 and Zn(BH4)4are more common. These borohydrides have been used for...

Development of the method of obtaining donor-acceptor complexes of titanium tetrachloride as a precursor of oxide materials based on titanium oxide and silicon matrix for the catalytically active nanoparticles of platinum group metals

Introduction As the matrices for applying the catalytically active particles of platinum group metals conventionally used in catalytic materials used for reducing the environmental impact of exhaust emissions of internal combustion engines (ICE) are...

The Analysis of the Phytochemical Content of some Edible Grains Marketed in Kotma Colliery M.P.

Introduction Food grains represent the main supplementary energy source in starchy food-based diets consumed by large segments of people.Generally grains have found good applications in food products and animal feeds.They are good sources of...

NaBH4/PhCO2H: An Efficient system for Reductive Amination of Aldehydes

Introduction Amines can be synthesized from their corresponding of aldehydes. So much method has been used for this purpose such as: the reduction of nitro, cyano, azide, carboxamide compounds or the alkylation of amines....

Dynamic 1H NMR and Theoretical Study of the Synthesized Phosphorus Ylide Containing of a Carbamate Derivative

Introduction The development of simple synthetic routes for widely used organic compounds from readily available reagents is one of the major tasks in organic chemistry [1, 2]. Phosphorus ylides are important compounds in organic...

A Quantitative Assessment of the Nucleophilicity of Cytosine in Aqueous Solution by Polarography Complemented by Hydrodynamic Voltammetry

Introduction Nucleic acids are important components of living cells as they store and transmit hereditary information from generation to generation 1-2. Nucleic acids are polymers of polynucleotide chains3,4 and each monomer in  the nucleotide ...

Solvolysis of titanium tetrachloride in non-aqueous media as a method for producing titanium dioxide particles of different morphology

Introduction Development of the scientific basis of catalyst preparation contributes to the creation of the original high-performance catalysts and methods for their synthesis. This work leads to a deeper understanding of the influence of...

Oxidative Desulfurization of kerosene in the presence of iron chlorideionic liquid catalyst and ultrasound waves

Introduction New environmental concerns necessitate low sulfur requirements in hydrocarbon based distillate fuels so that desulfurization of petroleum-derived fuels becomes an important part of refining processes. fuels so that desulfurization of petroleum-derived fuels becomes an...

Spectrophotometric Determination of Arsenic in Water Samples by Thiophene-2-Carboxaldehyde Thiosemicarbazone impregnated with alumina

Introduction The natural occurrence of arsenic as in the form of Arsenopyrite (FeAsS), Orpiment (As2S), Realgar (AsS), Arsenolite (AsS4O6), Arsenic pentaoxide (As2O5) and it is also a significant component in minerals like energite, clomeykite,...

(Acridine)(tetrahydroborato)zinc Complex [Zn(BH4)2(acr)]: A New Stable and Efficient Reducing Agent

Introduction Zn(BH4)2is unique because of a) the coordination ability of Zn2+, b) it’ssolubility in aprotic solventssuch as THF, Et2O and DME, c) an efficient chemo-, regio- and stereoselective reducing agent.So,it’s using and application is...

Synthesis of Some Functionalized Ionic Liquids with Long Chain of Carbone Starting from Imidazole

 Introduction Ionic liquids (ILs), made of relatively large organic cations and inorganic anions, could contribute as solvents  and catalysts to green organic synthetic reactions1-4. It was found that increasing the chain length of alkyl...

Structural Studies of Divalent Transition Metal Cobalt With Bis-(2,6-Diacetyl Pyridine Monoxime) 1,2-Di-Iminobenzene.

Introduction The co-ordination chemistry of Schiff base ligand is interesting because of their ability to form complexes with transition metal ions. In general  transition metal ions and its complexes with Schiff base ligand have...

The Synthesis, Characterization and Comparative Anticorrosion Study of Some Organotin(IV) 4-Chlorobenzoates

Introduction Corrosion is an electrochemical reaction occured naturally and  can proceed by itself, therefore the corrosion cannot totally be stopped1. Its reaction can normally only be controlled or slow down its reaction rate to...

Research of Polyacrylonitrile Saponification Heterophase Process Mechanism in Different Conditions

Introduction The rapid development of the petrochemical industry of the Republic of Kazakhstan has led to the need to develop scientific bases of new materials synthesis technology with desired properties based on local raw...

Investigation of Basis set Effects on the NMR Chemical Shielding tensors data on (10, 10) SWCNTs Calixarene complexes

Introduction Calixarenes are macrocyclic vases which are easily available through the cyclocondensation of Para substituted phenols with formaldehyde. Calixarenes are widely used as molecular platforms for the construction of specific receptors capable of highly...

Synthesis and characterization of lanthanum oxide and lanthanumoxid carbonate nanoparticles from thermolysis of [La(acacen)(NO3)(H2O) complex

Introduction In recent years, the synthesis of inorganic materials with specific size and morphology has attracted considerable attention. Their excellent physical and chemical properties in various fields, such as solar cells, catalysis, photo detectors,...

Smart spectrophotometric methods for the simultaneous determination of vitamin B1 and B2 concentrations in complex mixtures

Introduction Despite constituting only a very small fraction of the daily food intake, vitamins play a very important role in our health. [1] Water-soluble vitamins are considered to be a relatively complete formulation and...

Preparation and Characterization of Activated Carbon from Coconut Shell – Doped Tio2 in Water Solution

Introduction Titanium dioxide (TiO2) photocatalytic process is a promising process to overcome water pollution due to the use of oxidation-reduction reactions triggered by excitation of electrons under photon radiation (light) with greater energy to...

Comparative assessment of effect of copper nano- and microparticles in chicken

Introduction Studies that justify the use of copper-containing nanomaterials for X-ray therapy of cancer gain widespread over the last years [1]. Copper nanoparticles are used as contrast agent for high-resolution magnetic resonance imaging characterization...

Batch, Kinetic and Equilibrium Studies of Chromium (Vi) From Aqueous Phase Using Activated Carbon Derived From Lantana Camara Fruit

Introduction Chromium as a toxic heavy metal often exists in the waste streams from various industries such as mining, tannery, metal cleaning, plating, dyeing and metal processing. According to the World Health Organization (WHO)...

Chemical Composition profile of Wild Acacia oerfota (Forssk) Schweinf Seed Growing in the South of Iran

Introduction Acacia is a genus belonging to the Fabaceae family and comprises about 135 species of trees which are widely spread throughout the arid and semi-arid tropics(1, 2). Previous studies have shown that some...

Physiochemical Characteristics and Nitrate Content in Fresh and Canned Pears Products

Introduction Food is a primary need of a human being for his or her survival and welfare. Nowadays, more attention has been paid not only to the chemical composition and nutritive value of vegetable...

The effects of functionalized multi-walled carbon nanotube on mechanical properties of multi-walled carbon nanotube/epoxy composites

Introduction Carbon nanotubes (CNTs) exhibit unique structural, mechanical, electrical, and thermal properties as well as their nanometer scale and high aspect ratio, which make them an ideal reinforcing agent for fabricating high strength polymer...

The influence of parameters of spark discharge generator on dimensional characteristics of synthesized TiO2 nanoparticles

Introduction The synthesis of nanoparticles by spark discharge is a new and promising method for obtaining small nanoparticles of high chemical purity1 with the size less than 10 nm2,3. The synthesis of nanoparticles by...

Influence of Reaction Conditions on the Catalytic Oxidation of Cyclohexene with Molecular Oxygen Using a Series of Keggin-Type Polyoxometalate

Introduction Allylic oxidation of olefins is a very attractive processes for the obtenation of α,β-unsaturated alcohols and ketones which are important transformation due to the presence of a highly reactive carbonyl group.In particular the...

Preparation and Characterization of Binary Mixture of Efavirenz and Nicotinamide

Introduction Solid pharmaceutical dosage forms usually contain two or more active pharmaceutical ingredients and excipients; a combination of two or more active ingredients and also with excipients can lead to physical and chemical interactions1....

Chemical composition of the essential oils for AnthemisMelampodina from North Saudi Arabia

Introduction Anthemis(belonging to the Astraceae family)is a genus of 210 species of flowering plants. Anthemis plants are known to growwidely in Europe, south western Asia, northern and north eastern Africa and southern Arabia.The arabic...

Optical Scattering and Absorption Characteristics of Silver and Silica/ Silver Core/shell Nanoparticles

Introduction Particles with dimensions on the order of a billionth of a meter are known as nanoparticles. These particles are often composed silver, or gold. When excited with an electromagnetic field, nanoparticles produce an...

Novel Benzosuberone Derivatives:Synthesis, Characterization and Antibacterial Activity

Introduction Benzosuberone derivatives possess potential bacteriostatic, anti-inflammatory, anti-pyretic, anti-ulcer, CNS-depressant, CNS stimulant and anti-convulsant activities. Some of the derivatives are also known for anti-tumor activity in murine P388 cell line tests [1]. Tricyclic antidepressants...

Synthesis and Characterization of Barium-Vanadium Oxide Nanocomposite Using a Facile thermolysis Approach

Introduction Oxide structures with nanometric dimensions exhibit novel physical and chemical properties, with respect to bulk oxide materials, due to the spatial confinement and the proximity of the substrate. Many them have been described...

Rapid Kinetics and Relative Reactivity of Some Five Membered Aromatic Heterocycles using Hydrodynamic Voltammetry

Introduction Imidazole, pyrazole and thiazole are planar five membered heterocyclic compounds. Many heterocyclic compounds have wide range of applications in chemical, pharmaceutical, biological and material sciences1-4. These compounds are highly reactive in electophilic substitution...

Use of Variamine Blue dye in Spectrophotometric determination of Water Soluble Cr(VI) in Portland Cement

Introduction Chromium was present in raw materials used for the production of cement.  In its +3 oxidation state, it is not harmful, but during production of cement, at high temperature this harmless form gets...

Eluent Influences on Synthesis of Fe(III)-imprinted Polyeugenol using Polyethylene Glycol Diglycidilether (PEGDE) as Cross-linking Agent and its application as Fe(III) sorbent

Introduction Iron is an essential mineral for many application. However, its presence in drinking water cause problems, such as discoloration, giving metallic taste, odor, turbidity and give stains on laundry and plumbing. Iron oxides...

A Flexible Conceptual Framework for Supporting Collaborative Work

Introduction For the last century, there has been a substantial growth in e-business systems and applications. Yet there has not been a similar growth in applications that facilitate connectivity among employees [1]. Many researchers...

GC-MS Analysis of essential oil of Turmeric rhizome and its activity against Sporothrix Schenckii fungus

Introduction Turmeric belongs to Zingiberaceae family which is widely distributed in southeast Asia. There are 200 species of this family belonging to 20 genera. Turmeric has been used not only as a spice but...

Pre-Column derivatization Chiral HPLC Method for the separation and quantification of (R,R)-2,8-diazobicyclo [4.3.0]nonane content in (S,S)-2,8-diazobicyclo[4.3.0]nonane, A Key Intermediate of Moxifloxacin Hydrochloride

Introduction Moxifloxacin (1-Cyclopropyl-7-(S,S)-2,8-diazabicyclo(4.3.0)-non-8-yl-6-fluoro-8 methoxy-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid hydrochloride),  is a new fourth generation 8-methoxyfluoroquinolone developed primarily for the treatment of community acquired pneumonia and upper respiratory tract infections. It is active not only against gram-negative pathogens...

Drug – Excipient interaction studies of loperamide loaded in polsorbate 80 liposomes.

Introduction Liposomes is a lipid based drug delivery used for loading both hydrophilic and lipophilic drugs1. Many researches were made for brain target due to its high lipid nature and its nano sized dimensions....

Functionalization of Multi-Walled Carbon Nanotubes by 1-Amino-2-Naphthol-4-Sulfonic Acid and Study of Their Antimicrobial Activity Against The Gram-negative and Gram-positive Bacterias

Introduction With changing food production and eating habits, new pathogens and newly recognized vehicles of infection have emerged. Most of mortality throughout the world occurs due to infectious diseases 1. Concerns about contagious spread...

Surprises in the Study of Ruthenium-catalyzed Stereo- and Chemoselective Aldolizations

Introduction Apart from the economic and environmental aspects, the use of catalysts has shown their attractiveness due to their activity and selectivity.1-5 Metal-catalyzed reactions have made a great contribution to the recent growth of...

Ca(II), Zn(II) and Au(III) sulfamethoxazole sulfa-drug complexes: Synthesis, spectroscopic and anticancer evaluation studies

Introduction Metal–organic frameworks were the interesting field in the last two decades, not only for the physical applications in the areas such as catalysis, molecular adsorption, magnetism, nonlinear optics, and molecular sensing, but also...

Conditioning of spent ion-exchange resins followed by solidification in the alkali-slag long-lived matrix with an increased level of filling with resins

Introduction NPP spent resins is a special type of heterogeneous radioactive waste of intermediate activity level. They are stored separately from other RAW categories and under a layer of water, and these conditions define,...

Effect of Chloride ion concentration on Rapid Kinetics of Chlorination of Regioisomers of Nitrophenol by Molecular Chlorine in Aqueous Medium using Rotating Platinum Electrode

Introduction It was evident that a different mechanism operates for the chlorination in the presence of chloride ions, but the accepted mechanism for the chlorination of aromatic substrate by molecular chlorine involves the polarization...

An efficient and high-yielding one-pot synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones catalyzed by sodium hydrogen carbonate under solvent-free conditions

Introduction The presence of pyrazole and phthalazine ring systems, either alone or as a fused ring with other heterocyclic moieties, in a number of pharmacologically significant molecules have made them prime targets for scientific...

Effect of methyl paraben, propyl paraben and formalin preserved milk on chemical composition during storage

Introduction India has become the leading milk producer in the world producing near about 140 million tonnes according to the latest estimate (NDDB 2014). In India cost of milk is determined on the basis...

A Facile Protocol for the Construction of Tricyclic Framework Tetrahydrobenzo-4-nitrobenzenesulfonate, 4-methylbenzenesulfonate and [1,8] naphthyridine Substituents from Methyl δ-Lactam

DFT investigation on the tautomerization reaction and NBO analysis of the Acamprosate drug

Introduction The Acamprosate or calcium –N–acetylhomtaurinate is a drug successfully used for alcohol abuse therapy in maintaining abstinence following alcohol withdrawal [1-8]. The Acamprosate has been available in several European countries for many years...

A one-pot synthesis of functionalized azadienes from 2-hydroxypyridine, activated acetylenes and alkyl isocyanides

Introduction Isocyanides are known to form zwitterions with activated acetylenic compounds such as dimethyl acetylenedicarboxylate [1]. Reaction between isocyanides, electron-deficient acetylenes and nucleophiles was first documented by Oakes in 1969 and 1973 [2, 3]....

Synthesis and Characterization of Poly(α-Methylstyrene) by Cationic Polymerization Using a New Solid Ecological Catalyst

Introduction Cationic polymerization is a widely used method for preparing hydrocarbon polymers1. Numerous examples of the polymerization of vinyl monomers by a cationic pathway using various Lewis acids such as AlCl32 and BF33 catalyst...

Mechanistic and full Kinetic Study of the reaction between 4-chlorobenzaldehyde, malononitrile and dimedone using caffeine as a green catalyst

Introduction With increment environmental tendencies and regulative restriction encountered in pharmacological and chemical industries, extension of environmentally friendly benignant organic reactions has become decisive and wishing research. So, very of organochemists efforts are allocated...

Synthesis of Some Pyrazolone Derivatives and Evaluation of its Antibacterial and Cytotoxic Activity

Introduction Pyrazolone derivatives are the subject of many research studies due varieties of potential biological activities such as antimicrobial antiviral, antitumor, antihistaminic, antidepressant, anti-inflammatory anticancer, Antioxidant anticonvulsantand antidiabetic activities., cytotoxic activities [1-11].Pyrazolone derivatives is...

Adsorption behavior of CO on pristine and doped B12P12 nanocage : a DFT study

Introduction Detection and control of gases are important issues in environmental studies and much experiments have been made on the development of materials which can be used as gas-sensitive and dangerous chemical removal devices...

Green corrosion inhibitors for carbon steel by green leafy vegetables extracts in 1 M HCl

Introduction Carbon steel is widely used in industries due to its good mechanical property. Carbon steel has been extensively used under different conditions in chemical and allied industries in presence of alkaline, acid and...

Comparative adsorption of Fe(III) and Cd(II) ions on glutaraldehyde crosslinked chitosan–coated cristobalite

Introduction Removal of heavy metal ions from polluted water is an important issue for health and ecological reasons. Their toxic effect, non-biodegradability and transmission through the food chain justify a strict control of heavy...

Control of oxidizing potential of Pb and Pb-Bi coolants

Introduction Pb and Pb-Bi heavy liquid metal coolants (HLMC) have a wide range of advantages (Gromov et  al., 1992,  Gromov et  al., 1996,  Gulevsky et  al., 2008). Under reactor conditions, these coolants become only...

DFT study on the adsorption of drug cisplatin onto carbon nanotubes

Introduction Cisplatin is a chemotherapy drug, which is used to treat different cancer including testicular, ovarian, bladder, head and neck, and non-small cell lung cancer 1-4. In recent decades medical and pharmaceutical sciences have witnessed noteworthy advancement...

Brøsted Acidic Ionic Liquid ([Bmim]Hso4) Promoted Cyclocodensation Reaction: Synthesis of 3,4,5-Substituted Furan-2(5h)-Ones

Introduction Recently, science and technology are shifting emphasis toward environmentally friendly and green organic processes1. Several significant principles of green chemistry are omission of toxic solvents from chemical synthesis and avoidance of hazardous solvents...

Chemical composition and Phospholipids Content of Indonesian Jack Bean (Canavalia ensiformis L.)

Introduction Indonesia is a tropical country particularly blessed with a variety of rich vegetations having great, diverse and highly beneficial economic potentials for the populations. One field of such economic prospect is the availability...

Adsorption of methylene blue onto artichoke waste

Introduction Textile industries release large quantities of wastewater at risk of toxicity. The wastewater has low biodegradability, which makes biological treatments impractical agricultural byproducts, and this is a source of environmental degradation. Adsorption is...

Study of Physical and Colloid-Chemical Properties of Acrylic Polyelectrolytes of “M-PAA” Series and Their Modification

Introduction The aim of this study is to search for the best basic technology to replace the base in the metallization of dielectrics. We studied conducting polymers – acrylic polyelectrolytes. Polyelectrolytes include high molecular...

Levels and distribution of OCPs, (specially HCH, Aldrin, Dieldrin, DDT, Endosulfan) in Karhera Drain and surface water of Hindon River & their adverse effects

Introduction Organochlorine compounds can be persistent environmental contaminants and may be accumulated through the food chain to the aquatic organisms to fish and humans, depending basically on their hydrophobic properties. Persistent organic pollutants (POPs)...

Relationship dynamic viscosity and inverse absolute temperature to the concentrated solutions

Introduction The base oils have a Newtonian behaviour in that the viscosity is independent of the temperature and the shear rate. The polymers that are added into the oil may change the solution’s rheological...

Potentiometric studies and theoretical calculations of Some azo rhodanines and their metal complexes

Introduction Potentiometric titrations are the most useful techniques to investigate equilibrium in solutions and to determine dissociation constants. The potentiometric titration is used due to the simplicity of equipment and minimal time requirements. Rhodanine...

Effects of Shear Rate and Inhibitors on Wax Deposition of Malaysian Crude Oil

Introduction The deposition of wax from crude oil in sub sea can occur along the pipeline that is connected from the offshore, as well as to the onshore 1–4. Waxes are linear hydrocarbons with...

Density functional theory (B3LYP/6-311+G**) study of some semicarbazones formation mechanism

Introduction Nitrogen containing compounds are very widely distributed in nature and are essential to life, playing a vital role in the metabolism of all living cells. Presently, over 70 % drugs incorporate imine functionality,...

Thermal Stability, Sorption Properties and Morphology of Films of Dipeptide and Tripeptide Based on L-Glycine

Introduction As a consequence of self-organization the short-chain oligopeptides are capable to form the materials based on well-arranged nanostructures, such asnanotubes1,2, nanofibers3, nanorods4,5, nanowires6,nanoparticles7, nanospheres5,8. Such materials are biocompatible9and used for the fabrication of...

Quantitative structure-property relationship modelling of distribution coefficients (logD7.4) of diverse drug by sub-structural molecular fragments method

Introduction The most common physicochemical descriptor is the molecule’s partition coefficient in an octanol/water system. As emphasized previously, the drug will go through a series of partitioning steps: (a) leaving the aqueous extracellular fluids,...

Biosynthesis of Silver Nanoparticles Using Marine Sponge

Introduction Nanotechnology is appearing as a rapidly growing field with its application in science and technology1. Nanobiotechnology has emerged duo to mixing both of biotechnology and nanotechnology for developing biosynthetic and eco-friendly technology for...

Synthesis, Spectral Characterization and Computational Studies of Metal Chelates of 4-N-(2-Thienylidene)aminoantipyrine

Introduction Heterocyclic Schiff bases are related to first row transition elements is beyond the ambit of our imagination. However, multidenadate Schiff bases have been widely used as ligands, because they can easily attach to...

Isolation of alkaloids and anti-tumor activity of the crude methanolic extract of Algerian Cytisus purgans

Introduction The Family of Fabaceae is a cosmopolitan family with about 700 genera and 18000 species, and is one of the most important families, is characterized by a large number of derived traits [1]....

Chemical thermodynamics applied to the synthesis of tropinone

Introduction There is an increasing interest in the synthesis and biosynthesis of alkaloids derived from tropane because of the biological importance of many of these compounds. Many synthetic studies have focused on cocaine analogues...

GC-FID analysis of fatty acids and biological activity of Zanthoxylum rhetsa seed oil

Introduction The main components of the seed oil are the triglycerols, fatty acid that are present in the plant oil are the saturated or  unsaturated like olefinic acid with 16 to 18 carbon that...

Antioxidant, anti-inflammatory and anti-diarrheal activity of ethanolic extract of medicinal plants grown in Jordan and Palestine

Introduction Large numbers of conservationist groups have suggesting that wild medicinal plant be brought to cultivation owing to its therapeutic potential and to meet the growing demand for the herbal medicines. Study conducted among...

Citrus unshiu flower inhibits LPS-induced iNOS and COX-2 via MAPKs in RAW 264.7 macrophage cells

Introduction Citrus unshiu Markovich (Rutaceae) is a seedless and easy-to-peel fruit cultivated primarily on Jeju Island, Korea after introduction from Japan in the 1910s. C. unshiu constitutes more than 30% of the total fruits...

A series of Nano-sized metal ion – thiouracil complexes, tem, spectral, γ- irradiation, molecular modelingand biological studies

Introduction Pyrimidine is the parent heterocyclicthiouracil compounds, its derivative compounds have been extensively studied due to their occurrence in living systems [1], exist in nucleic acids, several vitamins, coenzymes and antibiotics. Pyrimidine derivatives are...

Synthesis, characterization and electrical study of new bis-fused tetrathiafulvalenecontains functional groups

Introduction The synthesis and characterization of new heterocyclic systems based on chalcogens (oxygen, sulfur, selenium, and tellurium) has been one of the central objectives in contemporary organic chemistry.    Several interesting systems have been synthesized...

Synthesis and anti-inflammatory activity of some new thiadiazole linked pyrazole benzene sulphonamides as cyclooxygenase inhibitors

Introduction Tissues in response to traumatic infections, post-ischaemia, toxicity and autoimmune injury cause inflammation and pain. The pathophysiological conditions such as evolution of persistent tissue damage of leucocytes, lymphocytes and collagen, the defensive process normally...

Electrochemical Behavior of Silver Electrode in Sulphuric Acidic Solution During Anodic Polarization

Introduction One of the promising methods currently in use, is the polarization by the AC of industrial frequency, which is the interest of researchers both in terms of oxide formation and destruction of passivated...

Virtual Screening of Natural Products, Molecular Docking and Dynamics Simulations on M.tuberculosis S-adenosyl-L-homocysteine Hydrolase

Introduction Tuberculosis (TB), one of the world’s most deadly infectious diseases, is caused by the bacterium called Mycobacterium tuberculosis(Mtb). According to the World Health Organization (WHO), Mtb is ranked second to HIV/AIDS as the...

Modification Bituminous Binders Petroleum Resin (Based on C9 Fraction)

Introduction Asphaltic concrete is recognized as the most convenient roadway surfacing worldwide. The demand for high-quality durable roadway surfacing has been ever increasing, caused by rapid degradation of the upper layers of the surface...