Volume 30, Number 3
Volume 30, Number 3
+Catalytic Depolymerization and Kinetics of Polyethelene Terepthalate by Saponification
Introduction Number of methods of recycling of PET are available in the literature1-4. For PET saponification much research has been carried out in acidic environment. Pusztaseri5 studied saponification in sulphuric acid. Sato and Yoshiaka6...
Read MoreStructural and Spectroscopic Aspects of Schiff Base Metal Complexes of Cobalt(II), Nickel(II) and Copper(II)
INTRODUCTION Thiosemicarbazone used as suitable ligand due to variable bonding abilities and several biocidal importance such as inhibitory action antiviral, antibacterial and anti-fungal activity1-9. Based on the above biocidal importance of thiosemicarbazone and in...
Read MoreFruit Quality Characters and Their Relation With Weight Per Fruit in Mango Over Years
INTRODUCTION Mango, the native of India, possesses rich genetic diversity in fruits. However, almost all the edible cultivars of mango have been developed through selection from naturally cross-pollinated seedlings except a few recent hybrids...
Read MoreNano-silver Colloidal Solution Formation by a Simple and Green Method
Introduction In recent years, the synthesis and applications of nano particles of noble metals have been of a great interest for researchers. Silver nano particles provide a wide range of valuable opportunities for such...
Read MoreSynthesis and Characterization of Cobalt(II), Nickel(II) and Copper(II) Complexes with Nitrogen-Oxygen Donor Ligand
INTRODUCTION Transition metal complexes of Schiff base have been intensely investigated by Coordination chemists due to their interesting structural properties and their wide ranging applications1-5, The coordination ability of Schiff bases with transition element,...
Read MoreMicrobial Exopolysaccharides: Biosynthesis and Potential Applications
Introduction The probiotic bacteria play beneficial role in the ecosystem of the human and animal gastrointestinal tract. The spectrum of the beneficial effects can be divided into nutritional, physiological and therapeutic effects. The mechanism...
Read MoreBeneficial Bacteria Helpful to Restore Water Bodies
INTRODUCTION The global population growth rate is accelerating, especially in the developing countries. Though many measures are being put in by developing nations to curb or minimize this population explosion, it is expected by...
Read MoreKinetics and mechanism of the selective oxidation of benzyl alcohols by acidified dichromate in aqueous acetic acid medium
Introduction Hexavalent chromium in various forms has been widely used as mild and selective oxidizing agent in synthetic organic chemistry 1-2 and is mainly applied in the oxidation of primary and secondary alcohols to...
Read MoreA green analytical method for the simultaneous estimation of Levofloxacin hemihydrate and ambroxol hydrochloride using hydrotropy and first derivative UV spectroscopy
Introduction The technique of derivative spectroscopy can be used with minimum error for the quantification of analytes whose spectra are overlapping by one another. It is a simple and cost effective analytical method for...
Read MoreShort time Modification of Carboxylated Multi-wall Nanotubes with Amino uracil derivative
Introduction Amino uracil derivatives have been reported to possess diverse biological activities such as antibacterial, antihypertensive, antiviral, antitumor effects and integral backbones of several calcium channel blockers1 . Moreover, several alkaloids containing the dihydropyrimidine core...
Read MoreDevelopment and Validation of a New Rp-Hplc Method For Simultaneous Estimation of N-Acetylcysteine And L – Arginine In Combined Dosage form
INTRODUCTION Arginine is an α-amino acid. The L-form is one of the 20 most common natural amino acids. At the level of molecular genetics, in the structure of the messenger ribonucleic acid mRNA, CGU, CGC, CGA, CGG, AGA,...
Read MoreRemoval of Aluminum from Water and Industrial Waste Water
Introduction Despite its range of applications, aluminum is one of the rare affluent elements which seemingly have no positive impacts on the living cells. At high quantity, it affects the blood circulation and nerve...
Read MoreAn Efficient Method for the One-pot, Three-Component Synthesis of 3,4-Dihydropyrano[c]chromenes Catalyzed by Nano Al2O3
Introduction 4H-Chromene and its derivatives have been studied due to a variety of chemical and biological significance1. The importance of chromenes as biologically active compounds includes their use as emetic2, anti-HIV3, anti-tumor4, anti-cancer1, anti-coagulant1,...
Read MoreNovel Synthesis and Anti-Microbial Activity Study of Innovative Mannich Bases Containing 2- Phenoxy-1, 3, 2-Dioxa Phospholanes And Indole Systems
INTRODUCTION Mannich bases and their derivatives have many attractive therapeutic use and applications, in paint and polymer chemistry as hardeners, cross linkers, reaction accelerations 1-2 etc. However, the most important applications are in the...
Read MoreCo (II) and Zn (II) Metal Complexes of Heterocyclic Schiff Bases: A Synthesis, Spectral and Antimicrobial Study
INTRODUCTION Metal complexes of Schiff bases are extensively studied due to synthetic flexibility, selectivity and sensitivity towards a variety of metal atoms1. Schiff bases are most widely used as chelating ligands in coordination chemistry2....
Read MoreA study of spectro photo metric determination of ion association complex, formed by anionic surfactant sodium dodecyl by using crystal violet as a cationic dye in region Bilaspur (Chhattisgarh)
Introduction Anionic surfactants are widely used in households, cosmetics and industrial productions. Surfactants have also been used in pharmaceutical Mining oil recovery polymers, paints, textiles, fibers, foods and pulp industries. The ASs represent approximately...
Read MoreMonthly and seasonal variation in the amount of total lipid and fatty acid in the muscle of a silurid cat fish Wallagu attu
Introduction Now-a-days the names like PUFA, DHA, EPA, Ω-3-fatty acids are so much and so frequently used that a scientific mind is bound to get attracted to it. Systematic studies have revealed that these...
Read MoreNumerical study and simulation of nano-bubble formation with CFD
Introduction Nanotechnology is a multidisciplinary field that retrieves its tools from both traditional and modern chemistry, materials, engineering and life sciences in which the material properties can be controlled and reproduced on the length...
Read MoreAdsorption of Lead (II) from aqueous solutions onto activated carbon prepared from Algerian dates stones of Phoenix dactylifera.L (Ghars variety) by H3PO4 activation
INTRODUCTION The removal of toxic heavy metals such as lead, cadmium, copper, nickel, mercury and zinc from aqueous environment has received considerable attention in recent years due to their toxicity which may cause damage...
Read MoreSolvent-free synthesis of stable oxaphosphaphenanthrene derivatives using multicomponent reaction of naphthols
Introduction Multi-component reactions (MCRs), due to their productivity, simple procedures, convergence, and facile execution, are one of the best tools in combinatorial chemistry [1]. Therefore, the design of novel MCRs has attracted great attention...
Read MoreTheoretical Studies of AQP4 in Water and Gas Phases, Nano Simulation of the Monte Carlo Method by Molecular Mechanics Force Fields
Introduction Three species of all kinds of membrane proteins have been demonstrated to possess water channels properties; the aquaporins, the cotransporters, and the uniports. Water traverses from cell membrane lipid bilayer by two passage...
Read MoreSynthesis and Bioevaluation of 3-(substitutedphenyl)-1-(4-hydroxyphenyl)-2-propen-1-ones and their Carbamate Derivatives against Root – Knot Nematode (Meloidogyne javanica)
INTRODUCTION Plants stunted or diseased by nematode related activity are likely to produce reduced yields and loss in quality and quantity of the produce1. Inspite of considerable damage caused by nematodes to various agricultural...
Read MoreEffect of gamma-irradiation on thermal decomposition of tris(1,2-diaminoethane)cobalt(II)sulphate
INTRODUCTION Pre-exposure to energetic radiation considerably affect the thermal decomposition kinetics of crystalline solids, the contributing factors being structural as well as topochemical. Inorganic salts containing oxyanions like acetates, chlorates, thiosulphates etc. have been...
Read MoreStudies on Frying Quality of Virgin Coconut Oil and Shortening Blends
INTRODUCTION Fat contents in fried products become a great concern among consumers as taking an excess fat may contribute to overweight and obesity. As much 300 million people in the world population, as well...
Read MoreA Heterogeneous Precipitate Based Magnesium Ion Selective Electrode-Its Preparation and Analytical Application
INTRODUCTION Magnesium is essential to almost all life on earth. Magnesium is a heart of the chlorophyll molecule, which plants used to convert the carbon dioxide to glucose. Magnesium is found in enzyme in...
Read MoreAdsorption studies of Methylene blue dye from aqueous solution onto phaseolus aureus biomaterials.
Introduction Most of organic dyes are in integral part of many industrial effluents and demand on appropriate method to dispose them off, Commonly suggested methods includes bio degradation, photo-catalytic, photolytic, and advanced oxidative degradation...
Read MorePotential Bactericidal Effect of Silver Nanoparticles Synthesised from Enterococcus Species
INTRODUCTION Before the beginning of antibiotics therapy, silver was used for its antiseptic activity, specifically for the treatment for open wounds and burns (1). Ancient people were much aware of the bactericidal properties of...
Read MoreValidated Stability Indicating Liquid Chromatographic Method for Simultaneous Estimation of Dosulepin And Methylcobalamin in Combined Pharmaceutical Dosage Form
INTRODUCTION Dosulepin (INN), formerly known as dothiepin (BAN), is a tricyclic antidepressant (TCA). It is chemically 3-(dibenzo[b,e]thiepin-11(6H)-ylidene)-N,N-dimethylpropan-1-amine (Figure-I). It is sold under the brand names Prothiaden, Dothep, Thaden and Dopress. Dosulepin blocks the reuptake of serotonin and norepinephrine in the brain, thereby increasing...
Read MoreEco-friendly and Efficient Synthesis, Characterisation and Antibacterial Studies of Unsymmetrical Bidentate Schiff Bases and their Zn(II) Complexes
INRODUCTION Schiff base ligands have been widely studied in the field of coordination chemistry for analytical, physical, and biochemical purposes mainly due to their facile syntheses, easily availability, electronic properties and good solubility in...
Read MoreEffect of Nature of Coal on Carbothermal Reduction of Barites
INTRODUCTION Barite is one of the major non-metallic minerals for export, consisting of mainly barium sulphate. This indigenous mineral has the unique distinction of having high specific gravity, water insolubility, non-magnetic nature etc. Due...
Read MoreSolid phase extraction of trace Cu(II)using Naphtol-2-(Pyridylazo-2)-1 (PAN) modified Single walled carbon nanotubes (SWCNTs) to Determination by FAAS
Introduction The determination of metal ions in natural samples such as waters, soils and biological fluids is very important part of environmental and public health studies. However, the direct determination of metal ions at...
Read MoreFT-IR Application for the Detection of Pistachio Oil Adulteration
INTRODUCTION Analysis and control of the quality of edible oils is an important subject in most of the countries. Oils are complex mixtures containing a wide range of compounds such as di and tri-acylglycerrols,...
Read MoreFoliar Biophenolic Antioxidant Metabolites of Alternanthera bettzickiana
INTRODUCTION Alternanthera bettzickiana (Regel) Nicholson1,2 (Family: Amaranthaceae), commonly known in English as Baptist plant, border plant, calico plant, red calico plant, Jacob’s coat, Joseph’s coat and parrot leaf, is an erect and bushy or...
Read MoreA Facile Approach of Diels-Alder Reaction in Imidazolium-based Ionic Liquids at Room Temperature
INTRODUCTION Recently, there has been increased attention on the use of ionic liquids as an alternative medium in organic reactions such as the Friedel-Crafts reaction, isomerization and hydrogenation 1-3. In addition, the Diels-Alder reaction...
Read MoreA novel bio-adsorbent of mint waste for dyes remediation in aqueous environments: study and modeling of isotherms for removal of methylene Blue
Introduction Dyeing technology is synonymous to man’s existence and the usage of dye products is unavoidable.[1,2] However, dyeing causes major problems when synthetic dyes are indiscriminately released into the environment producing pollution to man...
Read MoreSynthesis of magnetite nanocubes ( Fe3O4 ) from Iron ( III ) acetylacetonate by removal gas and higher temperature obtained
Introduction Recently, considerable research has been focused on iron oxides due to their potential uses in pigments, magnetic drug targeting, magnetic resonance imaging for clinical diagnosis, recording material and catalysts, etc. [1- 6]. The magnetic nanoparticles...
Read MoreSynthesis of Fe3O4 nano particles from Ironstone from the Republic of Yemen.
Introduction Recently, a considerable amount of research focused on iron oxides , due to their potential uses in pigments, drug deliverg and resonance imaging for clinical diagnosis, recording material and catalyst, etc[ 1-3]. The...
Read MoreExtraction and Antioxidative Activity of Essential Oil From Star Anise (Illicium verum)
Introduction Long term and extensive use of synthetic antioxidant such as butylatedhydroxytoluene (BHT) and butylatedhydroxyanisole (BHA) have been proven to cause carcinogenic effects in living organisms [1][2][3]. Due to the potential side effects of...
Read MoreChemical Composition and Fatty Acid Profile of Small Pelagic Fish (Amblygaster sirm and Sardinella gibbosa) from Muara Angke, Indonesia
INTRODUCTION The term ‘small pelagic fishes’ refers to diverse group of mainly planktivorous fishes that share the same habitat, the surface layers of the water column, usually above the continental shelf and in waters...
Read MoreMicrobial Transformation of Clarias gariepinus Oil by Psuedomonas aeruginosa
INTRODUCTION Bio transformation can be defined as an application that utilizes natural and recombinant organisms’ enzymes secreted by yeast, fungi and bacteria or whole cells as bio catalyst in converting the organic compound into...
Read MoreStructure-Based Design of Inhibitors Against Maltosyltransferase Glge
INTRODUCTION Tuberculosis (TB) is a highly contagious airborne disease brought by the pathogen Mycobacterium tuberculosis (Mtb) that causes infection in the lungs1. Despite the fact that the causative organism was discovered 100 years ago...
Read MoreBio conversion of ω-Fatty Acid from Giant Snake head (Channa micropeltes) Fish Oil
INTRODUCTION ω−fatty acids play important roles in human nutrition. Their functions in our daily health include lowering of triglyceride level, controlling of blood pressure and anti atherogenic activity1. The human body cannot synthesize ω−fatty...
Read MoreStudy of quality of water pond sebkha Oran in period of low-water mark using physic-chemical parameters with Chadha’s diagram and Larson Index
Introduction The past or present human activities, especially industrial, agricultural and domestic as well as, release into the environment of products and potentially dangerous substances, pollutants or contaminants known. These are released into natural...
Read MoreMicellization of D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS 1000): Thermodynamics and related Solute solvent interactions.
Introduction TPGS-1000 (TPGS, d-α-tocopheryl polyethylene glycol 1000 succinate) is one type of novel non-ionic surfactant with an average molecular weight of 1513 has been used in several pharmaceutical applications in both liquid and solid dosage...
Read MoreSynthesis, Evaluation and Docking studies of Cholecalciferol Derivative
INTRODUCTION Developments of efficient methodologies to access large molecules are of special interest. Steroidal compounds are essential to life in various ways. Synthetic derivatives of steroids have also attracted a good deal of attention...
Read MoreSynthesis of 1,3,4-Thiadiazoles, α -Pyranone ,Pyridine, Polysubstituted Benzene from 1,3,4-Thiadiazolyl Ethanone and Testing Against Tuberculosis Based on Molecular Docking Studies
Introduction 1,3,4-Thiadiazoles have been screened for their antibacterial and antifungal activities1-4, anti-inflammatory5,anti-tuberculosis activity6.The development of efficient methods for the synthesis of 1,3,4-thiadiazoles has attracted significant interest. Substituted 1,3,4-thiadiazoles have become very useful compounds in...
Read MorePharmacophore Modeling, Atom based 3D-QSAR and Docking Studies of Chalcone derivatives as Tubulin inhibitors
Introduction Microtubule is a globular protein and made of up closely related sub units called alpha-tubulin and beta-tubulin that are combined together to form heterodimers. Microtubule is important in various cellular processes like cell...
Read MoreInvestigation of Solvent Effects on NMR Shielding Tensors of Tripeptide Tyr-Aaa-Gly
Introduction Diamondoid molecules are cage-like, ultra-stable, saturated hydrocarbons. These molecules are ringed compounds, which have a diamond-like structure consisting of a number of six-member carbon rings fused together. More explicitly, they consist of repeating...
Read MoreSynthesis and in vitro bio degradation of poly(ethylene adipate- co-D,L-lactic acid) copolymers (PLEA)
INTRODUCTION The synthesis routines of poly(lactic acid) (PLA) could be directly divided into polycondensation reaction from lactic acid and ring opening polymerization (ROP) from lactides, a coordination-insertion mechanism has been proposed and widely accepted...
Read MoreNumerical Sequence of Borane Series
INTRODUCTION As a result of the carbon (C) atom to catenate and also form strong bonds with a hydrogen atom, it is able to generate a vast range of families of hydrocarbons. Some of...
Read MoreTheoretical Investigation of Tautomerism Stability of Hydantoin in the Gas Phase and in the Solution
Introduction Intramolecular 1,3-proton transfer of the keto-enol reactions of heterocyclic systems with several basic centers, O, N, S and Se atoms, are of great interest to medicinal and biochemical applications. Also, understanding of the...
Read MoreAntimicrobial Activity and Microbial Transformation of Ethyl p-Methoxycinnamate Extracted from Kaempferia galanga
INTRODUCTION The need for a new antibiotic against pathogenic microorganism has increased due to the current problems of resistance associated with them1. Plant based antimicrobial agents have enormous therapeutically potential as they can serve...
Read MoreAntimicrobial relevance of Cu (II) complexes of thiophene-2-glyoxal-p-halogen substituted Anils
INTRODUCTION Among the variety of organic compounds Schiff’s bases have earned highest popularity owing to their preparative accessibility and multifarious applications, viz. in chemistry as analytical reagents [1,2], as starting materials in the synthesis...
Read MoreUltra-Trace Determination of Methyl Carbamate and Ethyl Carbamate in Local Wines by GC-FID Following Pre concentration with C18-SPE
INTRODUCTION Ethyl carbamate, commonly called urethane, occurs naturally in most fermented foods and beverages1-19. Previous studies indicate that urea is the main precursor and that it reacts with ethanol under specific conditions to form...
Read MoreUsage of Cellulose Diacetate as Sorption Material for Fluorescent Analysis of PAH
INTRODUCTION Fluorescent techniques are widely used in various applications and studies, for example, in analytical assays of complex-built organic molecules, in particular, polycyclic aromatic hydrocarbons (PAH) (1–3). Most organic substances have their luminescence spectra...
Read MoreInfluence of complexing agent on the growth of chemically deposited Ni3Pb2S2 thin films
Introduction Chemical bath deposition is one of the well-known deposition methods to produce thin films on a variety of substrates such as indium tin oxide, fluorine-doped tin oxide and microscope glass slides. Uses of...
Read MorePhotocatalytic degradation of Vat Green 03 textile dye, using the Ferrihydrite-Modified Diatomite with TiO2 /UV process.
INTRODUCTION The objectives of the research were to extract and compare the two methods for extraction of cinnamon’s essential oil, to analyze and identify the active compound in the essential oil and to identify...
Read MoreElectrochemical Behavior Of Copper Electrode In Potassium Sulfide Solutions
Introduction Copper has been one of the preferred materials in industry owing to its excellent electrical and thermal conductivities, good mechanical work ability and relatively noble properties. It is commonly used as a material...
Read MoreFatty Acid Composition of Some Potential Fish Oil from Production Centers in Indonesia
Introduction Fish oil is one of the product development from fishery commodities which potential to be developed. The global usage of fish oil in 2002 are edible (14%), industrial (5%) and aquatic (81%)21. The...
Read MoreGalfan I and Galfan II doped with calcium, Corrosion Resistant Alloys
Introduction Aluminum is one of the most common elements on Earth’s surface. Due to its properties as low density and corrosion resistance alloys are widely used. Aluminum is a metal, whose production is growing...
Read MoreDerived thermodynamic properties of binary mixtures of m-Xylene, o-Xylene, and p-Xylene, with N,N-Dimethylformamide at T = (293.15, 303.15, 313.15 and 323.15) K
Introduction Intermolecular interactions have continued to capture the interest of chemists because of its important role in many chemical and biological systems.1Solvent systems are frequently used as media for many chemical, industrial and biological...
Read MoreDesign and synthesis of two azetidin-haloperidol derivatives using some strategies
INTRODUCTION Since several years ago, have been prepared some azetidine derivatives using different methods. For example, the synthesis of 1,2,4-trisubstituted azetidines by reductive cyclization of aza-Michael adducts of chalcones1. Other study2 showed the preparation...
Read MoreMicrobial Transformation of (-)-Alloisolongifolene
INTRODUCTION Microbial transformation of terpenes has been an attractive method to produce new metabolites with enhanced biological activity1. Insertion of a hydroxyl group in one step, with high regio- and stereo-selectivity, at an inactive...
Read MoreBenzoin Condensation and Stetter Reaction Catalysed by N,N-Dimethylbenzimidazolium Iodide in [Bmim][OH]
INTRODUCTION Recently a basic ionic liquid [bmim][OH] has been extensively used as a basic catalyst and reaction medium for various organic reactions such as Michael addition1, Markovnikov addition2, Knoevenagel condensation3 and Erlenmeyer Plochl reaction4....
Read MoreNumerical Assignment of Shapes and Symmetries of Borane Molecules and Ions
INTRODUCTION Borane molecules and ions have fastinated scientists for a long time since the beginning of 20th century1-2. Unlike hydrocarbons, boranes do not occur in nature, that is, they are generated synthetically3. As it...
Read MoreDendrimers: synthetic strategies, properties and applications
Introduction As the human understanding of nature’s building blocks evolved, chemists all over tried to incorporate natural architectural techniques into synthetic chemistry. This brought us into an era of macromolecules and polymers. A macromolecule...
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