Volume 34, Number 2
Volume 34, Number 2
Antioxidant Activity of Alkaloid Compounds from Litsea Cubeba Lour
Introduction Oxidation is an important process (normally) in living organisms, free radicals producing from metabolism pathway process or enviromental sources that interact sustainable with biological system. Reactive species are molecules which have an electronic...
Read MoreA Ferro-alloy, Calcium Carbide and Zinc Sublimates, Production from the Achisay Deposit Ore (Complex tests)
Introduction Kazakhstan owns some deposits containing zinc in an oxide form. These are Achisay, Shaymerden, Shalkiya and Zhayrem deposits [1, 2, 3]. Zinc reserves in these deposits make 1,5-1,6 million tonnes. Similar ores are...
Read MoreCoconut (Cocos nucifera L.) Lipids: Extraction and Characterization
Introduction Phospholipids (PLs) are amphiphilic lipids obtained in cell membranes of all organisms, organized as lipid bilayers. The PLs discovered are mainly glycerophospholipids (GPLs), which are made of fatty acid residues (FAs) attached to...
Read MoreSynthesis of Silver Nanoparticles in the Presence of Polyethylene Glycol and Their Electrochemical Behavior at A Graphite Electrode by Cyclic Voltammetry
Introduction Currently the metal-based nanomaterials are widely used in electronics, optics and chemistry, as well as in pharmacology, medicine [1], making and packing of food [2]. They are used as initial materials for synthesis,...
Read MoreSilver/oil Nanofluids in Heat Exchanger An Experimental Study on Convective Heat Transfer
Introduction Nanotechnology includes the integration of smaller structures into larger materials, keeping the construction of new material at nano-scale. Nanoparticles are also present in different morphologies such as rods, spheres, prisms and tubes1. Nanoparticles...
Read MoreInfluence of Thermal Stability of Quartz and the Particle Size Distribution of Burden Materials on the Process of Electrothermal Smelting of Metallurgical Silicon
Introduction Many researchers have studied the phenomenon of change in the granulometric composition of natural quartz as a result of thermal shock [1-4]. This phenomenon is observed practically in the process of smelting of...
Read MoreIdentification of Antimastits Componenets in Boerhavia Diffusa as an Inhibitor of Staphalococus aureus Monofunctional Glycosyltransferase, Causing Bovine Mastitis (An Insilico Approach)
Introduction Bovine mastitis is a kind of inflammation of the udder of cattle due to wounds or scars. It is associated with the presence of infectious agents as bacteria, Bovine Herpes virus, non bacterial...
Read MoreDiagnosis, Structure, and in the Vitro Antimicrobial and Antifungal Evaluation of Some Amino Benzoic Acids -Derived Ligand Schiff Base and Their Mixed Complexes with Cu(II), Hg(II), Mn(II) ,Ni(II) and Co(II)
Introduction Through the previous decades, Schiff base was the most significant ligand in the chemistry of the metal complexes to include donor atoms like nitrogen and others.1-3 considering their great enforcements in the scope of...
Read MoreStability Indicating UHPLC Method Development and Validation for Estimation of Eltrombopag and its Related Impurities in Tablet Dosage form
Introduction Eltrombopag is an approved drug for adult patients suffering from chronic immune thrombocytopenicpurpura (ITP). The symptoms are insufficient response to immune globulins, or splenectomy,corticosteroidsand having oral bioavailability. Use of Eltrombopag in lower dose...
Read MoreOxidative Desulfurization of Hydrotreated Gas Oil using Fe2O3 and Pd Loaded over Activated Carbon as Catalysts
Introduction Refining factories play an important rule to transfer coat oil to more valuable products such as liquid petroleum gas, jet fuel, gasoline, and diesel by using various techniques like distillation, extraction, reforming, hydrogenation,...
Read MoreBioaccumulation of Trace Metals in Selected Vegetable Crops around Tummalapalle Uranium Mine in Kadapa District, Andhra Pradesh
Introduction The resolve of trace metals in diet is a main task for nutritionist, environmentalist and experts for good health of living systems including human being. The water, soil, and food may also be...
Read MoreMechanical and Thermal Properties of the Waste Low and High Density Polyethylene-Nanoclay Composites
Introduction Polymeric materials are progressing largely in recent and innovative applications, extending between bicycles to aerospace, ware to customer electronics, farming, and sporty industries. Polymeric materials are significant type of material science, which endures...
Read MoreDetermination of Physicochemical Properties and Fatty Acid Composition of “Kabate” Larva Oil from Timor Island
Introduction Indonesia is one of the world’s top biodiversity rich countries in both flora and fauna. Since ancient times, many ethnic groups of Indonesian traditional societies have used natural products for medical purposes. The...
Read MorePharmacological Studies of Root, Fruit and Flower of Berberis lycium
Introduction Plant kingdoms are the rich source of organic compounds, many of which have been used for medicinal purposes. In traditional medicine, there are many natural crude drugs that have the potential to treat...
Read MoreResistant in Alkaline Media Core-shell Photocatalyst of Fe(TiO2/ Al2O3) for Degradation of Water Pollutant
Introduction Core-shell composite construction of TiO2/Al2O3 has been highly regarded by researchers in recent years. The alumina core was coated with titanium dioxide in the photocatalytic industry by this technique in order to increase...
Read MoreComparative Study on Janus Kinase Enzyme Activity of Pomegranate Leaf Extract and its Active Component Ellagic Acid for Asthma
Introduction Asthma is a multi targeted anti-inflammatory lung disorder controlled by different type of pathways and proteins. Protein kinases are dominant class of targets for autoimmune diseases like asthma1. Inhibitors of protein kinases were...
Read MoreRemoval of Ammonia Nitrogen NH-N and Hexavalent Chromium (VI) From Wastewater Using Agricultural Waste Activated Carbon
Introduction Environmental conservation protection takes a great consideration over the years in all all over world, especially the protection of water from pollution. One of the most toxic pollutants in wastewater which affect human...
Read MoreComposite Materials Based on Ultrahigh Molecular Weight Polyethylene and Rare-Earth Element Oxides
Introduction Composite materials based on carbo-chain polymers and inorganic fillers are widely used in various fields due to such characteristics as higher wear resistance and adverse environment resistance, including photodegradation and aggressive media effects...
Read MoreSynthesis and Structural Profile Analysis of the MgO Nanoparticles Produced Through the Sol-Gel Method Followed by Annealing Process
Introduction Metal oxides have become the attention of several researchers in last few years due to its potential in many field applications1–5. In recent year, researches have focused on synthesis of MgO nanoparticle due...
Read MoreAn Investigation into Transesterification of Waste Cooking Oil
Introduction Energy is important for human existence and for socio-economic development. The development. The World’s economic growth affected by fuel price hike. Due to the expected depletion of crude oil encourage researches concerning the...
Read MoreTitanium dioxide as a Catalyst for Photodegradation of Various Concentrations of Methyl Orange and Methyl Red dyes using Hg Vapour Lamp with Constant pH
Introduction Water Pollution by Tanneries, Textile and dye Industries More than thirty thousand trading dyes founded. According to more than eighty thousand various chemical structures are utilized in industries such as textile, tanneries, food,...
Read MoreUllmann Reaction Optimization Within Bitolyl and Decafluorobiphenyl Synthesis
Introduction Previously the authors investigated the aryl halides cross-coupling reaction to produce polyarenes, particularly quaterphenyl derivatives, within the framework of the FTP «Development of methods of producing quaterphenyl derivatives» (Agreement # 16.168.25.2002). Quaterphenyl derivatives...
Read MoreLithium Including Mixed Sodium Inside Graphene Oxide (GO) as Anodic Electrodes for Ion Batteries
Introduction Sodium-ion battery is a type of re-chargeable battery which uses sodium-ions as its charge carriers and is very similar to LIBTs in many ways. Na ions are 33% larger in diameter and 2.1...
Read MoreEffect of TiO2 For Generation of H2/O2 Gases, Based on Splited water and UV as Inisiator
Introduction There are two kinds of material pillared bentonite in north sumatera, wyoming clay and non wyoming clay, both have SiO2/ Al2O3as a main composition with (4 – 6 : 1) ratio. Bentonite is...
Read MoreSynthesis and Characterization of all Possible Diastereoisomers of Alvimopan
Introduction Number of biological substances and natural products are found to exist as enantiomeric pairs. In this instance, alvimopan 1 as shown in Figure 1, has three chiral centers thus it will have theoretically...
Read MoreSynthesis of Co, Mo, Co-Mo and Mo-Co Catalysts, Supported on Mesoporous Silica-Alumina for Hydrocracking of α-Cellulose pyrolysis Oil
Introduction Waste management is a great challenge to be solved in environmental technology. Waste processing by combustion will produce CO2 emissions and cause air pollution. Conversion of waste into useful materials has become a...
Read MoreSynthesis, Characterization and Swelling study of Poly (Methacrylic acid-co-Maleic acid) Hydrogels
Introduction Hydrophilic hydrogels are chemical or physical crosslinked three dimensional macromolecular matrix. Due to their hydrophilic functional groups (-OH, -COOH, -NH2, -CONH2, -SCO3H), they are able to absorb a substantial quantity of water in...
Read MoreFormation Conditions of Hydrocarbon Systems on the Sakhalin Shelf of the Sea of Okhotsk Based on the Geochemical Studies and Modeling
Introduction Nine fields have been discovered on the Sakhalin shelf. Five of those are oil-gas-condensate, one gas-condensate, two gas and one gas-oil fields (Fig. 1). The Lunsk Field in its gas and condensate reserves...
Read MoreChitosan Isolated from Horseshoe Crab Tachypleus Gigas from the Malay Peninsula
Introduction Horseshoe crab, a chelicerate arthropod, is among the world’s oldest and most fascinating creatures. It has survived from the ancient time until now and thus, it is called as the living fossil. In...
Read MoreImproving Oil Products Quality by Vermiculite Sorbent
Introduction The quality of essential oil products is currently a key issue in the petroleum industry. The problem of quality of petroleum products is closely linked to the conditions of their application and use...
Read MoreSimple Potentiometric Strategy for the Detection of Levofloxacin Hydrochloride and Daclatasvir Dihydrochloride in Pure form and Pharmaceutical Preparations
Introduction The use of electrochemical sensors has explored as a new class of chemical read-outs for monitoring a variety of chemical species because of their unique physico- chemical features and sensing properties. Promising applications...
Read MoreInvestigation of Different Ferrous Concentration Effect on Characteristics of NiFeP Nano Alloy Thin Films
Introduction Thin film fabricated by magnetic materials have received much attention due to its potential applications in micro and nano electro mechanical systems .Nickel ferrous alloys are broadly used in electronic industries because of...
Read MoreGreen Chemiluminescence of Highly Fluorescent Symmetrical Azo-Based Luminol Derivative
Introduction Luminol 1 is a classic chemiluminescent (CL) reagent 1 first reported by Albrecht in 1928 2 , extensively used for different analytical applications3,4 The basic solution of Luminol exhibits a striking blue glow...
Read MoreUtilization of Natural Zeolite Clipnotilolit-Ca as a Support of ZnO Catalyst for Congo-Red Degradation and Congo-Red Waste Applications with Photolysis
Introduction Zeolite is one of the many mineral resources contained in the earth of Indonesia whose utilization has not been maximized. In Indonesia, zeolite can be found in large quantities with almost pure form...
Read MoreCarbon–Carbon Bond Formation Reaction with Pd/reduced Graphene Oxide Composite
Introduction In last decades Suzuki–Miyaura cross-coupling reaction has gained considerable attention because of its use in making active pharmaceutical ingredients, agrochemicals, polymers, bioinorganic materials and natural products on a laboratory as well as industrial...
Read MorePhytosterol Screening of Skin and Seed Extracts of Wild Grape Ampelocissus Martinii Planch. Fruits
Introduction Phytochemicals are secondary metabolites that are non-nutritive, naturally occurring, and biologically active compounds and found in the plant kingdom1. Phytochemicals enrich the biological activity potential, including anti-inflammation, anti-cancer, antimicrobial, and antioxidant. There are...
Read MoreMicrostructure Characterization of Natural Magnetite from Sand Marina Beach By High Energy Milling
Introduction Iron sand occurs naturally in several regions throughout the world. Iron sand is one of Indonesia’s natural mineral resources, which is spread over the islands along the coast of Java Island, Kalimantan and...
Read MoreSynthesis and Antibacterial Activity 1-Monolaurin
Introduction Indonesia is the biggest coconut production country beside Malaysia and India but diversification of coconut based product is still low1. Currently, in Indonesia or other countries, coconut oil mostly was developed as drug...
Read MorePhysicochemical Characteristics and Photocatalytic Activity of Silver Nanoparticles-decorated on Natural Halloysite (An aluminosilicate clay)
Introduction Silver is widely known as functional metal in wide applications such as antibacterial agent, optical functionalizing, electrical applications and medical and chemical sensors. The growing interests are related to synthesis of Ag in...
Read MoreAnticancer Activity of Cu(II), Pd(II) and Zn(II) Complexes of Phosphonate with Glutamine Amino Acid
Introduction Hepatocellular carcinoma (HCC), a primary liver cancer, is considered as the fifth most frequent type of cancer and the third the most causes of death among the cancer types [1,2]. Liver transplant, surgical...
Read MoreSynthesis of High-Sulfur Polymers by Redox Copolymerization of Elemental Sulfur with Pyrrole
Introduction The oil and gas industry is currently developing both in the direction of increasing oil and gas production, and in the direction of creating and implementing innovative technologies for the processing of its...
Read MoreSolvent free Cationic Copolymerization of 2-Chloroethyl Vinyl Ether with Styrene Catalyzed by Maghnite-H+, a Green Catalyst
Introduction Polyvinyl ethers are viscousgum to rubberysolids used for a wide variety of technological and industrial applications; they are particularly employed in manufacturing additives and nanometer membranes. They are used in telecommunications, in the...
Read MoreSynthesis and Biological Evaluation of Certain new Cyclohexane-1-carboxamides as Apoptosis Inducers
Introduction Cancer is one of the most prominent diseases worldwide which represents the second cause of human mortality after cardiovascular diseases1. Drug resistance to cancer chemotherapy is considered a serious trouble2. Thus, there is...
Read MoreMolecular Docking as A Computational Tool for Analyzing Product Mediated Inhibition for β-Galactosidase Immobilized on Glutaraldehyde Modified Matrices
Introduction β-galactosidase (EC.3.2.1.23) is a glycosidic hydrolase that catalyzes the hydrolysis of β-galactosides into monosaccharides by breaking glycosidic bonds [1]. Because of low levels of this enzyme in intestine, large fraction of the population...
Read MoreSeasonal Influences on the Levels of Particulate Cd, Cr and PB in Kuantan River, Pahang
Introduction Riverine environments often have considerably higher concentrations of trace components such as nutrients and many transition metals and metalloids compared to marine environments. At present, there are increasing number of river water that...
Read MoreSynthesis, Characterization and In Vitro Antitubercular and Antimicrobial Activities of new Aminothiophene Schiff Bases and Their Co(II), Ni(II), Cu(II) and Zn(II) Metal Complexes
Introduction Schiff base being a condensation product of carbonyl compound and primary amine are a subclass of imines, also known as azomethines1. Over past two decades, Schiff bases are constantly emerging due to ease...
Read MoreFacile Synthesis of Biologically Derived Fluorescent Carbon Nanoparticles (Fcnps) from an Abundant Marine Alga and its Biological Activities
Introduction For the last few decades, the development and application of nanomaterials continue to progress due to their excellent properties and tremendous potential applications in various research areas such as electronics, chemistry and biomedical...
Read MoreAn Eco-friendly Approach for Synthesis of Platinum Nanoparticles using Leaf Extracts of Jatropa Gossypifolia and Jatropa Glandulifera and its Antibacterial Activity
Introduction Nanotechnology is an upcoming research field having immense advantages in science and technology for the purpose of industrialized new materials at the nanoscale level. At present, biosynthetic methods employing either microorganisms or plants...
Read MoreAn Efficient Synthesis and In Vitro Antimicrobial Screening of 2-Cyanoimino -4-aryl-6-(1,1′-biphenyl-4-yl)-3,4-dihydro-1H-Pyrimidines
Introduction Pyrimidines are very potent biological motifs among nitrogen containing heterocycles performs a unique function in cell metabolism and are the constituents of various types of alkaloids, antibiotics, vitamins etc1. They are exhibiting distinguished...
Read MoreStudy on the Effect of Deposition Parameters on Characteristics of Electrochemically Synthesized Polyaniline and Poly O-Toluidine
Introduction Following the successful synthesis of polyacetylene by Shirakawa et all1 in 1974 and its subsequent doping2 in 1977 conducting polymers become the attractive organic substances which show their potentiality as the replacement of...
Read MoreNovel Organotin(IV) Complexes Derived from Chiral Benzimidazoles: Synthesis, Molecular Structure and Spectral Properties
Introduction The organotin(IV) compounds have been widely investigated during the last few decades due to its multifaceted picture compromising a broad spectrum of biocidal properties, catalytic activity, use as stabilizers and appealing structural diversity...
Read MoreElectrochemical Preparation of the Ti/Ni-Sb-SnO2 for Phenol Removal by In-situ Generated Ozone
Introduction These days, a large amount of sewage containing toxic hard decomposable materials are discharged into the environment and water resources and are considered a serious threat to living organisms and human health 1,2....
Read MoreSynthesis and Characterization of Natural Ca(OH)2/KF Superbase Catalyst for Biodiesel Production from Palm Oil
Introduction Among the studied heterogeneous catalysts, there was alkaline earth basic oxide such as CaO, MgO, BaO, and SrO. The alkaline earth basic oxide was fascinating to examine, as they have high activity to...
Read MorePolyimide Composite Materials Containing Modified Nanostructured Boron Carbide
Introduction Polymers are known to be prone to substantial destruction during operation in high radiation environment. These structural changes can be prevented by reinforcing a polymer with radiation-absorbing fillers. The variety of polymer and...
Read MoreStructural Analysis of Powdered Manganese(II) of 1,10-Phenanthroline (phen) as Ligand and Trifluoroacetate (TFA) as Counter Anion
Introduction Synthesis and characterisation of complexes which were composed of transition metals, phenanthroline (phen) as ligand, and various counter ions, NO3–, BF4–, ClO4–, PF6– have been reported long time ago1-2. However, the cell parameters...
Read MoreSequential Injection at Valve Mixing (SI-VM) for Determination of Albumin-Creatinine Ratio in Urine
Introduction Kidney disease is increasing every year due to a large number of patients with diabetes and hypertension as a contributor to renal failure.1-3 Proteinuria, especially albuminuria, is the main indicator of kidney disease,...
Read MoreValidation of an Analytical Methodology for the Determination of Chloramphenicol Residues in Honey using UPLC-MS/MS
Introduction Honey is a by-product of flower nectar and the upper aero-digestive tract of the honey bee (Apis mellifera), which is concentrated through a dehydration process inside the bee hive1. Since ancient times, honey...
Read MoreSynthesis and Characteristics of the Magnetic Properties of Fe3O4–(CTAB-montmorillonite) Composites, based on Variation in Fe3+/Fe2+ Concentrations
Introduction In recent years, the application of magnetic composite materials to overcome environmental problems is one problem that has attracted much attention from researchers. One of the materials currently being developed is magnetite (Fe3O4)...
Read MoreEffect of Alkali Concentration on Mechanical Properties, Microstructure, Zeta Potential and Electrical Conductivity of Thermally Cured Fly-Ash-Blast Furnace Slag Based Blended Geopolymer Composites
Introduction Some research has been conducted on alkali activation of fly ash and ground granulated blast furnace slag(ggbs) [1-6]. In most of the cases either the fly ash or ggbs has been considered as...
Read MoreRemoval of Lead (ΙΙ) by Lumbang, Aleurites moluccana Activated Carbon Carboxymethylcellulose Composite Crosslinked with Epichlorohydrin
Introduction The presence of heavy metals in different water sources poses danger in aquatic ecosystems and risks in human health. One of these heavy metals is Pb(II), a naturally occurring, toxic, and commercially useful...
Read MoreDevelopment of Antimicrobial Hybrid Materials from Polylactic Acid and Nano-Silver Coated Chitosan
Introduction Plastics play important role for our everyday life due to its cheap price, light weight and variety of applications. Plastics can be processed into different shapes so they are now replacing the usage...
Read MoreInvestigation of Electrochemical Behaviour of Chromium(VI)-Dithiocarbamate Complexes: Detection of Chromium(VI) in Real Samples
Introduction Generally, chromium exists in nature as chromium(VI) and chromium(III), and its valence state in natural water depends on the presence of organic matter and oxygen content [1]. The chromium(VI) species are well-known to...
Read MoreCharacterization of Jordanian Porcelanite Rock with Reference to the Adsorption Behavior of Lead ions from Aqueous Solution
Introduction The challenge that Jordan faces today is water scarcity. The fact that Jordan has no regional local sustainable river, shares the surface water resources with neighboring countries. It depends on the precipitation rainfall...
Read MoreSynthesis and in Vitro Antimalarial Activity of Alkyl Esters Gallate as a Growth Inhibitors of Plasmodium Falciparum
Introduction Malaria is one of the plasmodium parasite infection which found in many tropical and subtropical countries. According to data from the WHO in 2010, around 2.3 to 3.3 billion people were at risk...
Read MoreGas Sensor with Reduced Humidity Response Based on Metal Oxide Nanoparticles Synthesized by Spark Discharge
Introduction Metal oxide (MOX) semiconductor gas sensors are widely used for the determination of trace concentrations of reducing (H2, hydrocarbons, methane, H2S, NH3, etc.) and oxidizing (NO2, O3, Cl2, F2, etc.) gases. Their application,...
Read MoreNigella Sativa L. Seeds Biomass as A Potential Sorbent of Lead from Aqueous Solutions and Wastewaters
Introduction In the field of environmental protection, removal of heavy metal pollutants from solid or liquid effluents constitutes a great challenge for health and environment institutions particularly in developing countries as a result of...
Read MoreLaccase Biosensor: Green Technique for Quantification of Phenols in Wastewater (A Review)
Introduction Quantification of biological or biochemical elements is of utmost importance for environmental monitoring of pollutants like phenols and its derivatives. The ubiquitous presence of phenols and phenolic compounds in the water and wastewater...
Read MoreDiethyldithiocarbamate Doped Graphene Quantum Dots Based Metal Complex Nanoparticles by Resonance Light Scattering for Green Detection of Lead(II) – (A Review)
Introduction At present, concerning an environmental pollution via systematic monitoring of heavy metals in water and/or even if other foodstuffs involved is very important to protect human public health. Among the different environment from...
Read MoreMethods for the Preparation of Modified Polyorganosiloxanes (A Review)
Introduction The fuel cell is one of the most promising alternative energy sources.1-3 Its necessary detail is a polymeric electrolytic membrane, which carries out selective and one-way proton transport. The role of PEM is...
Read MoreA Decade of Development of Ethylidenethiosemicarbazides as Building Blocks for Synthesis of Azoles and Azines (A Review)
Introduction Ethylidenethiosemicarbazides [(ethylidene)hydrazine carbothioamides) are a class of organic compounds with general structure [Ar(CH3)C=N-NH-CS-NH2]. Variation of substituents on thioamide nitrogen (A), sulfur atom (B), and hydrazone nitrogen (C) led to developing an array of...
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