Volume 34, Number 1
Volume 34, Number 1
Equilibrium Studies of Ternary Complexes of Cu(II) with Venlafaxine hydrochloride Drug and Some Amino Acids
Introduction The metal ions interaction with its ligand plays vital role in biological systems. To understand the complexes physiological process and the drugs mode of action as well as their effects on different body...
Read MoreHMX Synthesis by using RFNA/P2O5 as a Novel Nitrolysis System
Introduction Nitrolysis is one of the key processes in synthetic chemistry and widely used in industry, nitrolysis process mostly requires concentrated amounts of nitric acid, great number of the energetic materials such as HMX...
Read MoreAntibacterial Activity of Extract from Swamp Plant of Eleocharis Dulcis
Introduction Research on various types of plants, both marine plants and freshwater plants has been conducted to assess the potential of bioactive components that are useful as antioxidants and antibacterials. Each plant contains several...
Read MoreInfluence of Ball Milling on CdO Nanoparticles Prepared by Thermal Decomposition
Introduction Nano technology has shrunken down the various versions of modern day particles through the creation of nano particles. [1-2]. Type II-VI semiconductors, as a class of materials, have been and still are the...
Read MoreThe Preparation of All-Cellulose Nanocomposite Film from Isolated Cellulose of Corncobs as Food Packaging
Introduction The use of plastic packaging has dominated the food industry in Indonesia, replacing the use of glass and metal packaging. The use of plastics as food packaging materials are mainly caused by its...
Read MoreVibrational Spectra of Copper Tetramesityl Porphyrin using Vibron Model
Introduction Group theory is a well known tool that simplifies the process of obtaining a variety of information about molecules and their symmetries. Molecules are classified according to their symmetry properties and from that...
Read MoreHydrolytic Lignin Inhibiting Effect in Corrosion Products Converters
Introduction Hydrolytic lignin is an amorphous substance, from light brown to dark brown color. In the hydrolysis of wood or other vegetable raw materials which represents processing by the diluted sulfuric acid under the...
Read MoreEffect of Preparation Method on the Particles Size, Dielectric Constant and Antibacterial Properties of ZnO Nanoparticles and Thin Film of ZnO/Chitosan
Introduction Nanocomposite has received increasing attention in recent years in industry. These materials have the ability to collect a group of properties in a single compound as mechanical, electric and optical properties. zinc oxide nanoparticles...
Read MoreBiological Enrichment of Chromite ore on Alkaline Roasting using Seidlitzia Rosmarinus Ash
Introduction Chromium and its byproducts have broad applications as stainless steel production, chromic acid plating, corrosion control and etc.1-3 chromium is present in many minerals, occasionally combined with iron oxides and other transition metal...
Read MoreSynthesis and Characterization of Bio-Based Polyester and Polyamide from Citric Acid and Mannitol
Introduction Recently the biobased polymers are attract the attention of scientist due to their biodegradability and biocompatibility. There are many biobased monomers which can be used for polymer preparation. Generally biobased monomers are easily...
Read MoreEco-friendly Coating of Natural Zeolite with Metallic Gold, and Characterization of the Resulting Products
Introduction There are many reports on the modification of supporting materials to enhance the stability of gold nanoparticles, which have been developed for various purposes. For instance, calixarene-functionalized gold nanoparticles, which are potentially useful...
Read MoreCooxidation not to be Confused with Catalysis: A Chemical Education Article to Physical-Organic Chemists
Introduction Hasan and Roček were the first to report a direct synchronous three electron oxidation process where in isopropyl alcohol and oxalic acids were oxidized1. Later several publications appeared from his laboratory2-18. Sequel to...
Read MorePhytochemical Composition, Antioxidant and Antimicrobial Activities of Ammodaucus Leucotrichus Fruit from Algerian Sahara
Introduction The world has an endless quantity of plants used for multiple purposes. For certain plants, medicinal properties are more important than food, condiment or ornament use. Several studies assessed that therapeutic effects of...
Read MoreA Study for Transition of Vitamin C and Water Through Channel Membrane and Channel Aquaporin
Introduction Aquaporin or water channel, is a membrane proteins from intrinsic protein which form pores in the cell membranes, basically facilitating transition of water and some small molecules from outside to inside of a...
Read MoreExperimental Study on Solar Energy Storage using Phase Change Materials in Spherical Shell Storage System
Introduction The continuous increase in the level of greenhouse emissions and the increase in fuel prices are the main driving forces behind efforts to more effectively utilize various sources of renewable energy. Solar energy...
Read MoreMethod, Development and Validation for the Estimation of Magnesium Content in Esomeprazole-magnesium by Atomic Absorption Spectrophotometer
Introduction Esomeprazole Magnesium Trihydrate is an official drug in USP [1] belongs to a category of proton pump inhibitor and is used in treating various acid related disorders [2]. Esomeprazole (Fig 1), is a...
Read MoreRemoval of Cr(VI) from the Chrome Electroplating Effluent by Reduction and Adsorption using Powdered Activated Charcoal
Introduction Pollution due to the toxic metal ions is a worldwide problem and received widespread attention of researchers, environmentalists and pollution controlling boards of different countries. Among the number of toxic metal ions, ionic...
Read MoreInvestigation of a Mechanism for Extraction of Organic Components of a Mineral Part from Imankara Field Oil-Bituminous Rocks by Ultrasonic Treatment Method in the Presence of Surfactants and Flocculants
Introduction It is known that formation of oil-bituminous rocks (OBR) is related to oil yields from subsurface layers and its impregnation of sandy and clay oils or its gathering in subdued topography in the...
Read MoreSynthesis and Characterization Benzimidazole Ring by using O-Phenylinediamine with Different Compounds and using Mannich Reaction to Preparation some of Derivatives
Introduction Benzimidazole is heterocyclic compound found in many natural and non-natura1 products, such as some vitamins(1).Therefore, benzimidazole substitutes tooks the attention of differents research groups, especially as compensation or replacement in the position 1,2...
Read MoreExtraction of Insignificant Amounts of Phenols in Walnut (Juglans Regia) in Aqueous Samples
Introduction Th e genus Juglans (family Juglandaceae) comprises several species and is widely distributed throughout the world. Green walnuts, shells, kernels and seeds, bark, and leaves are used in the pharmaceutical and cosmetic industries....
Read MoreManganese(III) Acetate Mediated Synthesis of 3-Arylsulfenylindoles and Evaluation of Their Antibacterial Activity
Among the most important heterocyclic units indole nucleus has received major attention as a key structural building block due to their medicinal and pharmaceutical applications.1 Further 3-thioindole motifs are very common in various drugs...
Read MoreReduction of Peroxide Number in Crude Palm Oil (CPO) Using Rubber Fruit Shell (Heveabra silliensis) as Bio-sorbent
Introduction Rubber plantation is one of a plantation which is well developing in agriculture in Indonesia. Physically the shell of rubber fruit (Hevea brasiliensis) is known as a plant with lignin contained. According are...
Read MoreHydration of Strontium-doped Monocalcium Aluminate
Introduction Calcium aluminate cements (CAC) have alumina contents varying from about 38% to 90% w/w, in the form of monocalcium aluminate (CaAl2O4 or CA). Second phases include belite, corundum, dodecacalcium hepta-aluminate, ferrite pleocroite, gehlenite,...
Read MoreSynthesis, Spectral Characterization and Antimicrobial Activity of Some Transition Metal Complexes with new Schiff Base Ligand (BDABI)
Introduction Isatin represents synthetically 1H-indole-2,3-dione and it is a flexible lead molecule for latent bioactive agents1. The chemical versatility of isatin motivated the widespread use of this compound in biological synthesis2. Isatin nucleus having...
Read MoreZinc-Alginate Beads for the Controlled Release of Rifampici
Introduction Tuberculosis(TB) is a chronic pulmonary diseasecaused by mycobacterium tuberculosis. Rifampicin (RIF) is one of the effective first line drug for TB and isthe semi synthetic hydrazine derivative of rifampicin B.Major limitations of conventional...
Read MoreSynthesis of Mesoporous Fe2O3/SBA-15 and its Application for Nickel (II) Ion Adsorption
Introduction Nickel is one of the toxic metals cause water contamination. The source of nickel pollution is industrial processes such as electroplating, galvanization, plastics manufacturing, metal finishing, batteries manufacturing, mining, and dyeing operations [1,2]....
Read MoreSynthesis, Identification and Biological Activity of Some New Chalcone derivatives from 8-Chlorotheophylline
Introduction Xanthine a purine base produces in most human body tissues and fluids and in other organisms it is produced by purine metabolism. [1] The commonly used methyl xanthine theophylline, caffeine and theobromine are...
Read MoreBio-Synthesis of Gold Nanoparticles Through Bioreduction using the Aqueous Extract of Muntingia Calabura L. LEAF
Introduction In recent years, precious metal nanoparticles have attracted many researchers because of their potential applications in the fields of optics, electronics, biological sensors, and catalysts. Precious metal nanoparticles that are often used in...
Read MoreSynthesis and Characterization of Aurantiol Schiff Base: Relationship Between Synthesis time and some Physical Properties
Introduction Fragrance is a mixture of several compounds that each compound works in accordance with its properties to produce aromatic compounds.1-3 Important properties of fragrance include volatility, polarity, and stability. Volatility is a key...
Read MoreRetarding of Preliminary Chemical Pollutants from Dye Effluent by Metal Nano Particles Synthesized using Flower Extract of Catharanthus Roseus
Introduction Now a day we know numerous management approaches to remove contaminants from dye industry and tannery sewage. This removal process can be carried out by Physical, chemical, and biological processes [1].In the chemical...
Read MoreSynthesis and Characterization of some new β-Lactam Derivatives from Azo Sulphadiazine and its Biological Evaluation as Anticancer
Introduction Sulfadiazine is a sulfonamide antibiotic and it is recognized as one of” the World Health Organization’s List of Essential Medicines”, itremoves bacteria that cause infections by stopping the production of folic acid into...
Read MoreCatalytic Conversion of CO2/H2 Into Alcohol using Modified Lampung – Zeolite as Catalyst
Introduction In respond to fossil fuels depletion and concern on environmental impacts, primarily due to CO2 produced from their utilization, conversion of CO2 into various chemicals useful as alternative and renewable fuel has been...
Read MoreVirtual Screening of Treated Pistachio Vera Shell Powder as A Potential Sorbent in Sequestering Ubiquitous Divalent Metal Ions from Aqueous Matrices
Introduction Contamination of heavy metals into aquatic bodies by various pollutants, causes deterioration in ecosystem1. They also accumulate in food chain by affecting human beings2. The principle sources of heavy metals include: tanneries, electroplating,...
Read MoreFabrication of Sugar Palm Fiber/Andisol Soil Composites for Iron(III) ion Removal in Aqueous Solution
Introduction Heavy metal ions contained in industrial wastewater is increasing great attention among researchers and governments since their toxic nature and harmful for biotic creatures as well as for human sustainability. It is generated...
Read MoreOptimization of Struvite Crystallization and Heavy Metal Recovery in Wastewater using Response Surface Methodology
Introduction MAP (Magnesium Ammonium Phosphate) precipitation could occur spontaneously on the surface of process pipes, pumps and other industrial equipment leading to scale deposition of struvite (MgNH4PO4·6H2O) minerals1,2. The scale deposition of MAP bearing...
Read MoreGreen Synthesis and Charcterization of Silver Nanoparticles from Leafs Extracts of Rosa indica and its Antibacterial Activity Against Human Pathogen Bacteria
Introduction Nowdays, we are witnessing the development and advancement of a new interdisciplinary scientific field nanoscience.1As was shown by numerous example in physics, chemisty and biology, a transition from macrosizes to those of 1-100...
Read MoreInhibition Effect of 2,2’-Bipyridyl on the Corrosion of Austenitic Stainless Steel in 0.5M H2SO4
Introduction Austenitic stainless steels are widely used as building materials in the following fields: medical, automotive, food1, steam power stations2, piping systems, chemical factories and heat exchanger equipment3. Their resistance to corrosion is due...
Read MoreEffect of Nitrogen Plasma Treatment and Direct Dye on Zeta Potential of Cotton Fabric
Introduction Plasma is a mixture of photons, electrons, positive and negative ions, free radicals and excited molecules. In general, all of these species have interact with the surface of textiles. Plasma treatment can change...
Read MoreSynthesis and Cytotoxic Activities of Hexyl Esters Derivatives of Gallic Acid Against MCF-7 Cell line
Introduction Breast cancer is the second most common cancer in the world and the most frequent cancer among women with an estimated 1.67 million new cancer cases diagnosed in 2012 (25% of all cancers)....
Read MoreSynthesis and Study of Modified Polyvinyl Alcohol Containing Amino acid moieties as Anticancer Agent
Introduction Cyclic imides and their derivatives brought much attention to chemist and pharmacist in the field of research and development(1), These compounds play an important role in medicinal chemistry in drug development and drug...
Read MoreDetermination of the Hazard Class of Ash After Coal Combustion by the Method of Biotesting
Introduction Hazard class of ash and slag wastes is important in terms of environmental protection and health of inhabitants residing in vicinity of power plants. Ash dumps exert negative impact on environment due to...
Read MoreMeasurement and Thermodynamic Modelling of Erythritol Solubility in Aqueous Solvents
Introduction Erythritol, with its chemical name 1, 2, 3, 4-butanetetrol or meso-erythritol [C4H10O4], is classified as a sugar alcohol with white crystal appearance. The molecular structure of erythritol is shown in Fig. 1. It...
Read MoreSynthesis and Investigation of Polyimide-Based Proton-Exchange Membranes Containing Polysiloxane and Crown Ether Moiety
Introduction Fuel cells (FC) are devices that generate electricity through chemical reaction of fuel with oxygen and attracts increasing attention of alternative energy researches as they do not produce any harmful emissions to the...
Read MoreInhibition Studies of the Synergistic Effect of Rosemary oil and Zinc Oxide on S41003 Ferritic Steel Corrosion in Dilute Sulphuric and Hydrochloric Acid Solutions
Introduction Stainless steels have a wide variety of industrial applications. They are corrosion resistant in specific environments due to the formation of a thin protective film on their surface. Deterioration of these films results...
Read MoreThe Effect of Poly vinyl chloride-co-vinyl acetate Crosslinking Agent on Mechanical Properties of Acrylic Primer for Concrete Substrate Application
Introduction The acrylic resin Poly (methyl methacrylate) (PMMA) is used almost universally for surface coatings, adhesives, concrete, aircraft windows and thick polymer sheets1-4. PMMA has been continuously developed and gained an important role in...
Read MoreChemical Composition of Hydrodistillation and Solvent free Microwave Extraction of Essential Oils from Mentha Piperita L. Growing in Taif, Kingdom of Saudi Arabia, and Their Anticancer and Antimicrobial Activity
Introduction The medicinal plants continue to be one of the richest bio-resources which are used in traditional and modern medicines. Variety of widely used pharmaceutical preparations contains essential oils, crude extracts, or pure compounds...
Read MoreUnipolar Charging of Aerosol Particles in the Size Range 75-500 nm by Needle-plate Corona Charger
Introduction Particle charging is one of the most important processes in aerosol science and technology. Nowadays particle charging is successfully used for the particle size measurements1, formation of functional structures2, synthesis of nanoparticles3, electrostatic...
Read MoreElectrochemical Removal of Hydrocortisone from Aqueous Environments using Aluminum Electrodes
Introduction Hydrocortisone (See Figure 1)1 is a steroid hormone produced by the adrenal cortex2. Its synthetic counterpart is used as a medication for treating asthma, inflammation, allergy, multiple sclerosis, and skin conditions3,4. Figure...
Read MoreConductimetric Properties of Benzoic Acid in Water and 1-Propanol Mixtures at the Temperatures from 298.15 to 313.15K
Introduction The binary solvent systems are important for many practical applications, such as, in HPLC analysis,1 in MALDI-TOF analysis,2in the study of several physicochemical properties of electrolyte solutions.3It has attracted the researchers to study...
Read MoreSimple and Selective Naked-Eye and visual Detection of Cu2+ and Al3+ Ions using Hibiscus Rosa-Sinensis Linn flower Extract
Introduction Copper ion (Cu2+) plays important roles in various biological systems and the environment. It is well known that copper is an essential trace element for humans and other animals. However, its high concentration...
Read MoreNew Route to Synthesize of Graphene Nano Sheets
Introduction Graphene is a two-dimensional carbon with one layer. Graphene possesses superior properties including unique electronic properties due to its high electron mobility (20 × 103 cm2 v-1 s-1),1 mechanical resistance.2 Super-thermal properties (~...
Read MoreSynthesis, Characterization and Cytotoxic Activity of new Indole Schiff Bases Derived from 2-(5-Chloro-3,3-Dimethyl-1,3-Dihydro-Indol-2-Ylidene)-Malonaldehyde with Aniline Substituted
Introduction Schiff bases are important compounds in the chemistry and biochemistry fields due to their biological activities [1]. Schiff bases which are a class of compounds containing an azomethine group (-C=N-) as functional group...
Read MoreProduction of Biogas from Palm Oil Mill Effluent at Pilot Scale: Effect of Recycle Sludge
Introduction Crude palm oil (CPO) is one of major products in Indonesia. In 2012 Indonesia produced approximately 23.5 million tons of CPO [1]. It makes Indonesia as the largest CPO producer in the world....
Read MoreEco-Friendly Access to β -Ketoamides: one-step Catalyst – and solvent-free Amidation of β -Ketoesters under Microwave Irradiation
Introduction Catalyst-free methodologies for synthesis of organic compounds are of great interest for the development of a sustainable chemistry. In addition to the simplicity of the procedure and the reduced cost, this also makes...
Read MoreCrystal Structure and Third Order Nonlinear Optical Studies on 2-Phenylbenzimidazolium-p-Toulenesulphonate
Introduction A fascinating new field of research termed “nonlinear” optics was introduced to the scientific and engineering community after the invention of laser. Nonlinear optics has arisen as one of the most attractive fields...
Read MoreStudy of the Al, Cr, Fe and TI Impurities Coprecipitation on Coprecipitants of Various Natures in Potassium Dihydrogen Phosphate Solutions
Introduction Finding advanced method of producing high-purity potassium dihydrogen phosphate (KDP) – a raw material for rapid single crystal growth, constitutes a pressing objective due to the global implementation of projects relevant to developing...
Read MoreSynthesis and Characterization of Block Copolymers of Polystyrene and Thermotropic Liquid Crystalline Polyesters
Introduction In recent years, the polymers has attracted increasing interest their have a microphase separations systems. Microphase separations of polymer is good material forsolar cells. [1-13]. Such polymers included block or graft copolymers comprised...
Read MoreBiosorption of Methylene Blue from Aqueous Solution by Coconut (Cocos Nucifera) Shell-Derived Activated Carbon-Chitosan Composite
Introduction Anthropogenic activities and rapid industrialization have contributed to the worsening of environmental conditions by generating huge quantities of pollutants that are most often than not discharged into the nearest water sources. Among these...
Read MoreOptical Pattern of Liquid Crystalline Structure in Singular and Mixed Anionic-Cationic Surfactant System
Introduction When a surfactant adsorbs from aqueous phase at a hydrophobic surface, the molecule’s hydrophobic group causes the molecule to concentrate at the surface with the orientation where the hydrophobic group towards the surface...
Read MoreComparative Evaluation of Trace Heavy Metal Ions in Water Sample using Complexes of Dithioligands by Flame Atomic Absorption Spectrometry
Introduction Dithiocarbamate functional group is a versatile ligating moiety and readily interacts with a verity of metal ions to form complexes with varying nuclearities1. They have wide range of application in medicinal chemistry, industrial...
Read MoreIn Vitro Antacid Screening of the Aqueous and Ethanolic Leaf Extracts of Triticum Aestivum (Linn.) and Hordeum Vulgare (Linn.)
Introduction Peptic ulcer is one of the occupational diseases of employees in non-agricultural establishments in the Philippines, with 5, 347 cases in 2003 and 4, 135 cases in 20071. Due to the high prevalence...
Read MoreThe Synthesis of 2,3-Dihydroquinazolin-4(1H)-Ones using Zinc Oxide Nanotubes Modified by Sio2 as A Catalyst with Recyclable Effect
Introduction Heterogenization of homogeneous catalysts has been a fantastic area of research from the industrial point of view. This approach, relieves the ability to use simultaneously the benefits of homogeneous catalysts (high activity and...
Read MoreThe Sorption Capacity of Polymer Sorbents on the Basis of Polyimides with Crown Ethers
Introduction The presence of metal ions in various wastes, including the wastewater which are by-product of industrial activities, is topical environmental problem. Unlike organic pollutants, heavy metal ions are not biodegradable and tend to...
Read MoreDevelopment and Validation of Stability-Indicating Ultra High-Performance Liquid Chromatography for Ramipril Analysis in Pharmaceutical Dosage Forms and its Application in Lipid-based Formulations
Introduction Ramipril (RMP) is (Fig1) chemically named as 2-[N-[(S)-1-ethoxycarbonyl-3-phenylpropyl] – L – alanyl] – (1S, 3S, 5S) – 2 – azabicyclo[3,3,0]-octane-3-carboxylic acid [1]. It is classified as angiotensin converting enzyme inhibitor (ACE) [2, 3]....
Read MoreUsing Thermolytic Solution of Anionic-decorated Graphene Quantum Dots (GQDs) as Fluorescence Turn on-off Sensor for Selective Screening Test of Metal Ions
Introduction It is well known that graphene has found widespread applications in many diverse fields in physics, chemistry, material science, and biology. It has been shown that when a graphene sheet is small enough,...
Read MoreSynthesis, Spectral and Biological Studies of Complexes with Bidentate Azodye Ligand Derived from Resorcinol and 1-Amino-2-Naphthol-4-Sulphonic Acid
Introduction In the last few years, a lot of interest have been taken by chemists in the synthesis and physicochemical studies of first row transition metal complexes with a number of azo dye ligands...
Read MoreAllylxanthone Derivatives as Xanthine Oxidase Inhibitors: Synthesis, Biological Evaluation and Molecular Docking Study
Introduction Xanthine oxidase (XO) is a vital enzyme that catalyzes the oxidation of hypoxanthine to xanthine and the oxidation of xanthine to uric acid in the purine pathway and plays a significant role in...
Read MoreSynthesis of a Novel Calix[4]resorcinarene-Chitosan Hybrid
Introduction Calixarene has attracted the attention of scientists since it was first introduced in 19781 because it can be utilized in various fields. Calixarene has been studied its use for various purposes, including: sunscreen,2...
Read MoreSynthesis and Investigation of Electrical Properties of Carbon Nanotube – Porous Matrix Composites near the Percolation Threshold
Introduction Carbon nanotubes (CNTs) have been intensively investigated due to their combination of outstanding mechanical and electrical characteristics, extremely large interfacial contact area, high aspect ratio, and low mass density. CNTs are considered as...
Read MoreUtilization of Heavy Metal Complexes As Phosphorogenic Sensors for the Detection of Amino Acids, (A Review)
Introduction Amino acids that are bioactive molecules play pivotal roles in maintaining various biological pathways in cellular functions. Especially, biothiols such as cysteine (Cys) homocysteine (Hcy) and reduced glutathione (GSH) are responsible for the...
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