Volume 31, Number 2
Volume 31, Number 2
Urea biosensor based on immobilization of urease on ZnO nanoparticles
Introduction Urea (also known as carbamide) is a waste product of many living organisms, and is the major organic component of human urine. This is because it is at the end of chain of...
Read MoreGreen synthesis and dye propertied of 2H-indazolo [2, 1-b] phthalazinetriones by PEG-MDIL
Introduction Heterocyclic compounds occur very widely in nature and are essential to life. Among a large variety of heterocyclic compounds, heterocyclic containing phthalazine moiety are of interest because they show some pharmacological and biological...
Read MoreOptimization on the Stability of Linseed Oil-in-Water Nanoemulsions Generated by Ultrasonic Emulsification Using Response Surface Methodology (RSM)
Introduction There has been growing interest in the utilization of nanoemulsions in the food industry because of their potential health benefits associated with their consumption1. Nanoemulsions have the ability to increase the bioavailability of...
Read MoreSynthesis of ZnO Nanoparticles by Precipitation Method
Introduction Research in the field of synthesis methodology of nanomaterials is mainly oriented in controlling their shape, size and composition. Each of these factors is a key factor in determining the properties of materials...
Read MorePreparation of Arylamines form Aldehydes by Zn(BH4)2/MgBr2
Introduction One’s famous of pharmaceutical intermediates for the synthesis of some drugs are amines. These compounds can be obtained by the reduction of cyano, azide, nitro, carboxamide derivatives. On the other hands, direct reductive...
Read MorePhotooxidative Removal of Phenazopyridine by UV/H2O2 Process in a Batch Re-circulated Annular Photoreactor: Influence of Operational Parameters
Introduction Development of ecologically clean and safe chemical technologies, processes and materials is vital for maintaining and controlling the environmental pollution1. Such techniques are getting significant attention in academic and industrial researches due to...
Read MorePreparation of 1,1-diacetates from aldehydes by LiBH4 and Ac2O in the presence of cation exchange resin
Introduction Carbonyl functional group of aldehydes has been protected in organic synthesis by the preparation of 1,1-diacetates(gem-diacetates, acylals) from the corresponding aldehydes 1-2because 1,1-diacetates are stable under neutral, basic and critically controlled acidic conditions....
Read MoreThe influence of Neutron Irradiation in CR-39 polymer
Introduction The operation of radiations on polymer composites is of great importance with a view to achieve some desired improvements in polymer properties1-4 that cannot be achieved by chemical courses. It is also worthwhile...
Read MoreSynthesis and Characterization of 2, 3, 7, 8, 12, 13, 17, 18, Octabromo 5, 10, 15, 20 tetra phenyl porphyrin
Introduction Metalloporphyrins are important model compound for understanding the biological function of heme proteins1. Recent works have shown that stability of porphyrin catalysts is greatly enhanced by substitution of β-pyrrole and ortho position of...
Read MoreOne-Pot Synthesis of 1,8-Dioxo-octahydroxanthene Derivatives
Introduction In recent years, the uses of catalysts supported on solid supports have been extensively developed because such catalysts not only cause to simplify the purification processes but also do not release toxic substances...
Read MorePolyaniline/MnTiO3Nanocomposites: Fabrication, Characterization and Optical band gap
Introduction PANI as a typical conducting polymer has recently received a great deal of attention. PANI is one of the most promising electrically conducting polymers due to its unique electrical and electrochemical properties, easy...
Read MoreInfluence of Ferrous sulphate on growth and alpha-a Amylase production for Aspergillus fumigatus NTCC1222
Introduction Amylase breaks down starch by hydrolysing the alpha bond such as α-1, 4 and α-1, 6 yielding glucose, maltose etc or a mixture of these small carbohydrates. It can be obtained from sources...
Read MoreOne-pot three-component synthesis of spirooxindoles catalyzed by nano Ag/kaolin
Introduction Multicomponent reactions forming heterocyclic compounds are powerful tools in the drug discovery process as they can offer expedient synthesis of libraries of drug like compounds in single operation1. Spirooxindoles occupy an important place...
Read MoreSynthesis and Characterization of Polyesteramide urethane derived from Melia Azedarach seed oil
Introduction Vegetable oils have attracted renewed attention as a raw material for the preparation of commercial polymers1-3. These polymers can offer versatile applications in the field of coatings and adhesive4-7. The utilization of vegetable...
Read MoreSimulation Studies of the Damaging Effect of Molecular Hydrogen gas on Double Walled Carbon Nanotubes.
Introduction Recently different storage technologies have been explored to develop a secure and cheap method to save hydrogen[1,2].Undoubtedly, the surface texture of carbonaceous materials is one of the most important factors for hydrogen storage.Pores...
Read MoreSynthesis, Characterization Studies and Bond Valence Sum (BVS) analysis on 2:1 Adducts involving Zinc(II)dithiocarbamates and 4,4’-Bipyridine
Introduction Zinc and cadmium dithiocarbamate complexes have continued to attract attention in recent years on account of their industrial applications1,2 and biological profiles.3,4 Dithiocarbamates are a family of compounds with diverse biological activities, suggesting...
Read MoreAdsorption of 2-picoline and 3-Amino-2-picoline onto kaolin and organo-modified kaolin
Introduction Natural clay minerals are well known compounds. The kinds of clays are largely used in industrial products such as ceramic, paint, coatings, water purification and drilling mud [1- 3].They are low cost, abundance in...
Read MoreEffect of Churning Process on Heavy Metals in Cream, Butter and Butter Milk
Introduction Milk and milk products are main constituents of dairy diet, especially for vulnerable groups such as infants, school age children and old age. Several studies have reported the distribution and occurrence of the...
Read MoreEvaluation of Antimicrobial Activity of Some Compounds Isolated from Rhamnus cathartica L.
Introduction Rhamnaceae, is a large family of flowering plants, mostly trees, shrubs and some vines. The family contains 50-60 genera and approximately 870-900 species. Rhamnaceae have a worldwide distribution, but are more common in...
Read MoreSynthesis and thermal characterization of mono and dicationicimidazolium-pyridinium based ionic liquids
Introduction Ionic liquids (ILs) are polar compounds of poorly coordinating ions which are liquid below 100 °C and have potential as a clean replacement for common volatile organic compounds (VOCs) in chemical process. Compared...
Read MorePrediction of activity of carbonic anhydrase inhibitor drugs based on QSAR studies
Introduction The carbonic anhydrases (CA) form a family of enzymes that catalyze the rapid interconversion of carbon dioxide and water to bicarbonate and protons (or vice versa), a reversible reaction that occurs relatively slowly...
Read MoreCarboxylate Functionalized Chitosan/Bentonite Composite Matrix as a Cation Exchanger for the Removal of Pb(II) From Aqueous Media: Kinetic and Equilibrium Studies
Introduction Lead(Pb) is known to be a common water pollutant with highly toxic nondegradable heavy metal and which is easily accumulated in human body (1). Even at very low concentration of Pb(II) ions, which...
Read MoreElimination and Recycling of Imatinib by Ethoxylated Multi-Walled Carbon Nanotubes from aqueous solutions
Introduction Carbon nanotubes as a new emerging nanomaterial have found increasing application in different fields due to their unique chemical and physical properties. Exceptional properties such as high specific area and hollow tube structure...
Read MoreFacile synthesis of hydroxyapatite particles from cockle shells(Anadaragranosa)by hydrothermal method
Introduction Calcium is one of abundant elements in nature both from natural sources (egg shells, corals, cockle shells, bones) and in the form of natural product (limestone) [1,2]. The cockle shell (Anadaragranosa), a lenient...
Read MorePolyamide/nano mixed matrix membranes for pervaporation dehydration Ethylene glycols
Introduction Membrane technology covers all engineering approaches for the transport of substances between two fractions with the help of permeable membranes [1-16]. In general, mechanical separation processes for separating gaseous or liquid streams use...
Read MoreNaBH4/Na2C2O4/H2O: An efficient System for Selective Reduction of Aldehydes in the presence of Ketones
Introduction The selective reduction of aldehydes in the present of ketones is a well-honed strategy in organic synthesis. For this subject numerous reducing reagents and reducing systems have been prepared 1-4 such as a)...
Read MoreThermodynamic Deprotonation of N, N’ – Disubstituted Thiobarbituric Acids in Water – Dioxane Mixtures
Introduction The studies on the behaviour of the heterocyclic imines and enols are of current interest in biopolymers and in the physical chemistry of drug action. It is desirable that more information is gathered...
Read MoreComparison of polyamide-carbon nanotube and polyamide- nano silica composite membranes performance for purification of ethanol
Introduction Ethanol is a very vital and widely applied as solvent in chemical industries. However, due to the forms of azeotrope with water at one time it reaches 89.4 mol% at 351.15 K and...
Read MoreChemical Composition Profile of Canned and Frozen Sweet Corn (Zea mays L.) in Iran
Intorduction The maize (Zea mays L.) is a monoic annual plant which belongs to maideas tribe and the grass family of gramineae , the plant is unable to disperse the seeds as a wild...
Read MoreCorrelation between inhibition efficiency and chemical structure of new indolo imidazoline on the corrosion of mild steel in molar HCl with DFT evidences
Introduction Corrosion is a serious environmental problem in the oil, fertilizer, metallurgical and other industries. Metals are prone to corrode when they are exposed to aggressive media such as acids, bases and salts. Hydrochloric...
Read MoreSynthesis of pure zeolite P2 from calcium silicate hydrate; tobermorite
Introduction Semicrytalline calcium silicate hydrates (CSH) are the main components of cement hydration products. The CSH phases are metastable and transform to stable well crystalline phases like tobermorite, xontolite and gyrolite with hydrothermal treatments...
Read MoreA Comparison between Ion chromatography and Inductively Coupled Plasma for the Determination of Bromate in Certain Samples of Foodstuffs
Introduction Bromate ion (BrO3–) is formed as a by-product during the ozonation of drinking waters containing bromide. Bromate was classified as a “Group 2B” which was considered as a possible human carcinogen by the...
Read MoreCharacterization and Properties Evaluation of Conducting Al – doped ZnO at low temperature by ECD Method
Introduction Zinc oxide is an N – type semiconductor which is having wide band gap of ~3.3 eV. ZnO mainly exists in two crystalline structures hexagonal Wurtzite and cubic Zincblende, wurtzite is most common...
Read MoreChemical Composition profile of Acacia Nilotica Seed Growing Wild in 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). “Acacia Nilotica” is a tropical tree...
Read MoreHistamnie and Chemical Composition of Canned and Frozen Green Pea (Pisum Sativum)
Intorduction A substantial amount of research literature has been published over the past 75 years reporting the effects of processing, storage and cooking on the nutritional quality of fruits and vegetables (1). Fresh seeds,...
Read MoreNerita chameleon as Biomonitoring Agent for Pb, Cd, Cu and Zn in Malaysian Intertidal Rocky Shore Environment
Introduction Gastropods from the family Neritidae (Rafinesque, 1815) lives in marine, brackish, and freshwater systems. This colourful round snail, N. chameleon is commonly seen in rocky shore and feed on algae. Along the coast,...
Read MoreCopper (I) iodide nanoparticles on polyaniline as a green, recoverable and reusable catalyst for multicomponent click synthesis of 1,4-disubstituted-1H-1,2,3-triazoles
Introduction 1,2,3-Triazoles are an important class of heterocyclic compounds thanks to their wide range of applications. 1 The most fashionable method for the production of the 1,2,3-triazole framework is the 1,3-dipolar Huisgen cycloaddition reaction...
Read MoreElectrophoretic Studies on the Complexation of Pb(Ii) and Cd(Ii) with Chloramphenicol Drug
Introduction Metal ions play an important role in biological system and required for many critical functions in human1-3 but Pb and Cd are classified as toxic metal by Banerja4. Toxic metals are not bio-degradable...
Read MoreHeavy Metals monitoring in Psammotaea elongatafrom Semerak Lagoon, Kelantan, Malaysia
Introduction Heavy metals contamination on local, regional and global scales have been intensively studied in recent years due to the fact that of their persistency, toxicity, bioaccumulation in organisms, and risk to humans and...
Read MoreSynthesis, characterization and biological studies of 1,7- dinaphthyl heptanoids and their metal chelates
Introduction Curcuminoids are bioactive yellow orange pigment present in the rhizomes of the plant, turmeric (Curcuma longa Linn). Turmeric has been used for centuries in Ayurvedic medicine due to its anti- inflammatory, antifungal, antimicrobial and antitumour...
Read MoreExtraction-Chromogenic Systems Containing Iron(III), 4-(2-Thiazolylazo)resorcinol and Ditetrazolium Salts
Introduction Tetrazolium salts are well-known compounds with multifunctional properties and various applications(1-7). The most important 2,3,5-trisubstituted tetrazolium salts can be divided into two types: monotetrazolium(MTSs) and ditetrazolium (DTSs) (7).Along with applications related to colour...
Read MoreSemi-refined κ-carrageenan: Part 1. Chemical modification of semi-refined κ-carrageenan via graft copolymerization method, optimization process and characterization of its super absorbent hydrogel.
Introduction Super absorbent polymers (SAPs) can be defined as three-dimensional networks materials consist of ionic functional groups that can absorb fluids such as water and other aqueous solutions without dissolving into water.1The ability to...
Read MoreSynthesis and Screening of Fluoro Substituted Pyrazolyl Benzoxazoles
Introduction 3-Formylchromones give several versatile condensation reactions as they contain 3-electrophilic centers in the molecule1 which can be converted into various biological active compounds. 3-Formylchromones achieved by the most stable method through the application...
Read MoreLand treatment Methods A review on available methods and its ability to remove pollutants
Introduction The process of land treatment is the controlled application of wastewater to soil to achieve treatment of constituents in the wastewater. All three major processes (include slow rate (SR), overland flow (OF), and...
Read MoreSpectroscopic Studies of Charge Transfer Complexes of Some Amino Acids with Copper (II)
Introduction Metals are mainly toxic to living room organisms and they tighten to accumulate in their living room tissues. In recent years, there has been has growing public concern and awareness of toilets problems....
Read MoreSargassum Wightii Extract as a Green Inhibitor for Corrosion of Brass in 0.1 N Phosphoric Acid Solution
Introduction Phosphoric acid (H3PO4) is a major chemical product, which has many important uses especially in the production of fertilizers. Most of the acid is produced from phosphate rock by wet process. Brass and...
Read MoreRemoval of Cu(II) from Aqueous Solutions using Dried Activated Sludge and Dried Activated Nano-Sludge: Adsorption on a Fixed-Bed Column
Introduction Heavy metals pollution are present in industrial wastewater and are discharged in the enviroment. The presence of toxic heavy metals in aqueous source is one of the most important problems that effectiveness in...
Read MoreDegree distance and reverse degree distance of one tetragonal carbon nanocones
Introduction A molecular graph is a simple graph such that its vertices correspond to the atoms and the edges to the bonds. A path of a length n in a graph G is a sequence of...
Read MoreDevelopment and Validation of RP-HPLC Method for Simultaneous Estimation of Olmesartan and Hydrochlorothiazide in Tablet Dosage Form
Introduction Olmesartan medoxomil (OLM), (5-methyl-2oxo-1,3-dioxol-4-yl)methylester of 4-(1hydroxy-1-methylethyl)-2-propyl-1-{[2′-(1H-tetrazol-5-yl)[1,1′-biphenyl]-4-yl] methyl}-1H-imidazole-5-carboxylic acid (Fig. 1A), is a novel selective angiotensin II type 1 (AT1) receptor antagonist having antihypertensive efficacy. It is an ester prodrug which is completely and...
Read MoreAn eco-friendly and highly efficient route for N-acylation under catalyst-free conditions.
Introduction In the last two decades, the development of mild, non-toxic, low cost, eco-friendly methodologies has received much attention in modern organic transformations.1 The acylation of amines is fundamental chemical reaction for the production...
Read MoreTheoretical and Experimental Investigation of Quantum Confinement Effect on the Blue Shift in Semiconductor Quantum Dots
Introduction Nanomaterials have attracted many interests and attention due to their special characteristics that differ from those of bulk solids and molecules. Because the novel properties of nanomaterials depend on their size, structure and...
Read MoreDensity functional theory, natural bond orbital and atoms in molecule analyses on the hydrogen bonding interactions in 2-chloroaniline – Carboxylic acid complexes
Introduction Hydrogen bonding is one of the most important type of interactions. It is used in determining properties and functioning of both natural and artificial systems from water to advanced materials and also living...
Read MoreOptimization of High-Efficiency CdS/CdTe Thin Film Solar Cell Using Step Doping Grading and Thickness of the Absorption Layer
Introduction One of the most promising new developments in the field of solar research is thin film technologies. Due to using simpler deposition processes as compared with conventional techniques, thin film solar cells are...
Read MoreThe hunt for the dynamical resonances in chemical reaction dynamics: a perspective on historical advances
Introduction The fundamental essence of dynamical resonances The concept of the transition state is one of the central themes in physical chemistry.[1,2] The transition state is located at a position between the reactants and products...
Read MoreDesign, synthesis and anticancer activity of new 3-cyano-2 (1H) -pyridone and 3-cyanopyridine-2-(1H)-thione derivatives
Introduction The pyridine skeleton is of great importance to chemists as well as to biologists as it is found in a large variety of naturally occurring compounds and also in clinically useful molecules having...
Read MoreSynthesis, characterization and In-Vitro cytotoxic studies of 5,10,15,20 tetra pyridyl porphyrin coordinated to four [Ru (bipy)2 Cl]+ groups
Introduction Porphyrins and porphyrin like compounds are of special interest because of their many unique properties and technological applications 1-5. The conjugation of the porphyrins to metal fragment is a strategy for making new...
Read MoreDensity functional theory and QM/MM illustration of the behavior of B23N23 nano-cone: EPR & NMR investigation
Introduction The carbon nanotube (CNT) is a representative nano-material. CNT is a cylindrically shaped carbon material with a nano-metric-level diameter [1-20]. Its structure, which is in the form of a hexagonal mesh, resembles a...
Read MoreSynthesis of Bis-Dibenzonaphthyridines and Evaluation of their Antibacterial Activity
Introduction Dimeric chemistry has a wide occurring impact in variety of fields and also proven to be important in the field of drug discovery.1,2 Some of the dimers are found to be equally or...
Read MoreElectrochemical activity of glutathione at a graphite electrode modified with gold nanoparticles
Introduction GSH (2-amino-5-{[2 – [(carboxymethyl) amino] – 1 – (merkaptometil)-2-oxoethyl] amino}-5-oksopentanoic acid) is a water-soluble tripeptide of γ-glutamilcysteinilglycine. GSH plays an important role in protecting the organism from disease, toxins, viruses, environmental hazards, radiation...
Read MoreQM/MM & Monte Carlo simulation of single wall nano tube carbon SWNT (15, 15) binding with thymine dimer
Introduction The carbon nanotube (CNT) is a representative nano-material. CNT is a cylindrically shaped carbon material with a nanometric-level diameter [1-8]. Its structure, which is in the form of a hexagonal mesh, resembles a...
Read MoreSynthesis and Anti-Cancer Studies of 2, 6-Disubstituted Benzothiazole Derivatives
Introduction The development of new anticancer therapeutic agents is one of the fundamental goals in medicinal chemistry. A dose of anticancer drug sufficient to kill tumour cells is often toxic to the normal tissue...
Read MoreThermal Decomposition Study on Solid Complexes of 7-[2-(Benzimidazolyl)azo]-8-hydroxy quinoline with Co(III), Ni(II) and Cu(II)
Introduction Chemists, in recent years, have shown a growing concern in studying complexes formed by imidazole, benzimidazole and other related ligands as these are common components of more important molecules. Benzimidazole is a fused...
Read MoreCharacterization of Hexahydroxycyclotriphosphazene Salicylate; Epr, Nmr, Xrd Spectra
Introduction A few of the adducts of [NP(OH)2]3 with organic acids have been synthesized and reported.1-6 U.V., E.P.R., 1HNMR and XRD investigations of hexahydroxycyclotriphos-phazene salicylate are being reported here with. Experimental [NP(OH)2]3 was prepared...
Read MoreDestruction of the resins structure due to heating
Introduction Most of the oil fields in the country are at the final stage of operation. This stage is characterized by the presence of significant number of idle well bores, as well as large...
Read MoreAcid-Promoted Hydrolysis of m-Cl-Phenyl Phosphorotriamidate leading to its Highly Basic Nature by Kinetic Means
Introduction Organic phosphoramidate have been widely utilized for synthetic1,2 work, especially for the synthesis of pyrophosphates. These compouds may also function as fireproof materials3 (e.g. phosphoric aniline diamide); as polymers 4,5 and co-polymers (Aromatic...
Read MoreDFT investigation of Li+complexation of novel boron nitride 12-crown-4 ethers: Gas, Water and Benzene phases study
Introduction Macrocyclicpolyethers or crown ethers have an interesting property to accommodate selectively many different ions into their cavities to form stable complexes. They originally prepared by Pedersenat Du Pont in 1967[1]. Since that the...
Read MoreAreca Fiber Reinforced Epoxy Composites: Effect of Chemical Treatments on Impact Strength
Introduction At present natural fibers are gaining tremendous importance to be used as a reinforcement material for the preparation of polymer composites as these natural fibers are having excellent benefits such as good strength...
Read MoreProduction and Characterization of Activated Carbon from Oil-Palm Shell for Carboxylic Acid Adsorption
Introduction Economic and population growth increase energy demands. Nowadays, an important fraction of the energy consumed worldwide is obtained from fossil fuel resources, which are highly pollutant. In Colombia, fossil fuels are mixed with...
Read MoreAdsorption and corrosion inhibition of Azadirachta indica gum with Zn2+/ Ni2+ cations on mild steel in 1 mol L-1 HCl
ntroduction The corrosion protection of mild steel is a significant concern among the corrosion scientist and material technologist1. Although, mild steel has remarkable economic and substantial applications, its poor corrosion resistance in acids confines ...
Read MoreCovalently supportedSulfonic and acetic acids ontopolypyrrole asgreen, cheap and recoverablesolid acid catalysts for the synthesis of 4H-pyrano[2,3-c]pyrazoles
Introduction Heterogenization of homogeneous catalysts has been an interesting area of research from the industrial point of view; this combines the advantages of homogeneous catalysts (high activity and selectivity, etc.) with the engineering advantages...
Read MoreStudy of Some Alkanes Thermodynamic Parameters Using New Liquid Crystals Containing Sulfur as Stationary Phases
Introduction The azo compounds are highly colored and have been used as dyes and pigments. Recently, azo metal chelates have also been poind attention due to their interesting electronic and geometrical features in connection...
Read MoreSynthesis of Novel Fused pyrimidines and imidazoles as potential analgesics from 2-Amino-4-substituted-s-triazino[1,2-a]-benzimidazoles
Introduction Azole class of drugs, particularly fused imidazole occupy a prominent place in medicinal chemistry because of their broad spectrum of pharmacological activities such as anti-inflammatory, analgesic, anticancer, antiulcer, antimicrobial, antiviral, pesticidal and anti-arrhythmic...
Read MoreDesign and Manufacture of Silver-Selective Electrode Based on Single-Walled Carbon Nanotubes
Introduction Silver is a metallic, silver-colored element which is quite rare and expensive. Silver salt compounds are toxic. Free silver ion with a concentration of 1-5 micrograms per liter is harmful to aquatic plant...
Read MoreFactors Affecting the Physical Properties of Epoxidized Natural Rubber (ENR)/ Polyvinyl Chloride (PVC)Aerogels
Introduction One of the wildly researched materials nowadays due to its interesting physical properties is aerogel. Aerogel is a unique solid material which has low density with more than 95% of its volume consisting...
Read MoreChemical Analysis of Rainwater and Study Effect of Vehicle Emissions on Human Health in Kurdistan Region
Introduction Fossil fuels are natural resources which are included gasoline and diesel fuel and natural gas. The burning of fossil fuel gives the power to our vehicles and provides the energy source to industries;...
Read MoreA comparative of quantum mechanical Calculations on adsorption of CCl2O by Carbon-Carbon & Aluminum -Nitride Nanotubes
Introduction Discovery of carbon nanotubes [1] has sparked intense research activity within the past decade. These novel materials have a wide range of potential applications ranging from the field of nano electronics to nano...
Read MorePredicting ESR Peaks in Copper (II) Chelates Having Quadrupolar Coordinating Sites by NMR, ESR and NQR Techniques: A DFT Study
Introduction Eight Cu(II) complexes such as [Cu(en)2]2+, Cu(teta)]2+, [Cu(tepa)]2+, [Cu(peha)]2+, [Cu(deta)X2] (X= Cl, Br, I, NCS) having poly-dentate ligands of a class called polyethylene polyamines (en, deta, teta, tepa, peha) and six other complexes...
Read MoreNMR Shielding Tensors and Thermodynamic Investigation of B28N28 Nano-cone Structure: A molecule for Fe3+Capturing
Introduction DFT (density functional theory) is one of the computational methods which can be used in different systems and it is more useful for some calculations than other methods. It is clear that basis...
Read MoreAn experimental study of formation of the mercury mixed halides HgClBr and HgBrI and of their purity
Introduction Mercury has been known for a long time and its compounds studied1. Claims to have produced mixed halides of mercury go fairly long back into time2. However, Ammlung and Brill and others have...
Read MoreAdsorption behavior of methyl orange onto wheat bran: Role of surface and pH
Introduction Synthetic dyes are widely used for textile dyeing , paper printing ,leather dyeing , cob lour photography and as additives in petroleum products [1]. They exhibit a wide range of different chemical structures...
Read MoreEffect of Chain Extension on Thermal Stability Behaviors of Polylactide Bioplastics
Introduction Polylactides including semi-crystalline poly(L-lactide) (PLL) and amorphous poly(D,L-lactide) (PDLL) are biodegradable polyesters that have attracted much interest for medical and packaging applications because of its biodegradability and biocompatibility1-5. The PLL and PDLL have...
Read MoreThe influence of the nature of AOT, bis (2-ethylhexyl) sulfosuccinate on the spectral characteristics of the optical absorption of silver nanoparticles in reverse micelles solution
Introduction The decision of actual problems of modern nanochemistry is closely associated with the development and improvement of methods of synthesis, stabilization of nano-sized structures and the creation of composite materials with desired properties...
Read MorePhysicochemical Characterization and the Comparison of Chitin and Chitin Modified with Maleic Anhydride
Introductıon Viewpoint related to the conductivity of polymers is changing fastly with the discovery of conducting polymers (CPs). CPs (also known as conjugated polymers) have conjugated π-electron system. Conjugated π-electron system provides unusual electronic...
Read MoreClassification of Transition Metal Carbonyl Clusters Using the 14n Rule Derived from Number Theory
Introduction Transition metal carbonyl clusters have stimulated immense interest for several decades largely due to their vast and intriguing structural architecture,numerous potential industrial applications and challenging bonding properties.In this regard, the work by Wade...
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