About: chem-xpert

Green Synthesis and In Vitro Anti Oxidant Activity of 6-aryl-quinazolin-4(3H)-ones via Suzuki Cross Coupling

Introduction The recent literature is enriched with progressive findings about quinazolin-4(3H)-one and its derivatives which exhibit a broad range of biological properties such as antioxidant1,  anti-tumour2, anti-inflammatory3, anti-malarial4, antibacterial5 and anticonvulsant activity6. Further, quinazolin-4(3H)-one...

Spectrophotometric Determination of Co(II), Ni(II) and Cu(II) Complexes with Schiff Base Containing Nitrogen and Sulphur Donor Sites

Introduction The chemistry of transition metal complexes has been rapidly expanding not only because their potential applications, but also due to the intriguing variety of architecture exhibited by these compounds1-5. Schiff base derivative incorporating...

Conditions for Establishing the Optimal-Efficient Scheme of the Process of Flushing of Heat Supply Systems

Introduction The chemical composition of corrosion-scale deposits1-3 is classified as: alkaline-earth, complex in composition silicate, iron, manganese and copper. The compositions of alkaline earth and complex silicate are 90% composed of carbonates, sulfates, silicates,...

The Effect of Sodium Hydroxide on Chemical and Mechanical Properties of Corn Husk Fiber

Introduction Natural fibers from wood and annual crops are widely available in most developing countries such as Agave bagasse (Robles, et al., 2015), sansieviera (Sreenivasan et al., 2011), and kenaf (Alavudeen et al., 2015)...

Effect of Milling on Physicochemical Properties of Usnic Acid Isolated from Usnea sp.

Introduction Usnic acid is the secondary metabolites found in lichen (crust moss), one of them in the Usnea sp. Usnea sp is commonly found in the mountains, high altitude and lowland with high humidity....

Non Bonded Interactions in a Cylindrical Capacitor of (M, N) @ (M’, N’) @ (M”, M”) three Walled Nano Carbon Nanotubes

Introduction Three walled nanotubes (T-WCNTs) can be considered as a tube twisted from hexagon sheets of graphene or boron nitrides plates which have been synthesized1 in 1995 firstly. Boron nitrides tubes have structural analogs...

Effect of Modified Clay on the Morphological and Thermal Properties of PLA/PBAT Nanocomposites

Introduction Polylactic acid (PLA) is the most popular biodegradable polymers obtained from corn starch1. Standard-grade PLA has a high modulus and a strength, which is comparable to that of many petroleum-based plastics. Some disturbing...

In Silico Study, Synthesis, and Cytotoxic Activity of Esterification of Eugenol and Gallic Acid Against HT-29 Cell Line

Introduction Cancer is one of the major concerns disease around the world, it is cause of the hignest mortality rate in the world.1 Colorectal cancer (CA) ranks third in men with 746,000 cases of...

Synthesis and Characterization of Biodegradable Film Chitosan and Carboxymethyl Chitosan to Substitute Silver Wound Healer Plaster

Introduction A skin injury is generally requires cover from being infected by bacteria or pathogens abundant in dust and air12. In fact, many types of bacteria that live on human skin can make infection3....

Plant Generated Silver Nanoparticles and their Antibacterial Effect in Combination with Levofloxacin and Amikacin

Introduction Over the past three decades, advanced technology and research had enabled nanotechnology to become one of the most active areas of research in modern science. This field basically deals with atoms or molecules...

The Influence of type of Functional Groups on the Adsorption Selectivity of Ionic Imprinted Polymer (Iip) Fe

Introduction Chemiclas water polution is a problem all over the world. Heavy metals ion is one of the most dangerous because it is very toxic even in small quantities1. Although the iron metal is...

Adsorption of 4-Chlorophenol from Aqueous Solution Onto Iraqi Bauxite and Surfactant–Modified Iraqi Bauxite: Equilibrium, Kinetic, and Thermodynamic Studies

Introduction Chlorophenols are synthetic organic compounds that are used on a large scales in chemical industry including the production of pharmaceuticals, pesticides and dyes1,2. They can find their way to the environment since they...

Determination of Related Substances in Cabazitaxel using Reverse Phase- Liquid Chromatography Method

Introduction Cabazitaxel(CBT)(Figure 1.1) was a taxane group chemotherapy drug which is used to treat advanced hormone-refractory prostate cancer[1].The IUPAC name of Cabazitaxel was 1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(Acetyloxy)-15-{[(2R,3S)-3-{[(tert-butoxy) carbonyl]amino}-2-hydroxy-3-phenylpropanoyl]oxy}-1-hydroxy-9,12-dimethoxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl benzoate. CBZ was approved by EMA [2] and USFDA...

Synthesis of Copper-Chitosan Nanocomposites and its Application in Treatment of Local Pathogenic Isolates Bacteria

Introduction Resistance of microorganisms to antibiotics have been increased, so many attempts have been demonstrated for synthesis of resistant antimicrobial compounds against many pathogenic microorganisms which cause dangerous threat to health1. Nanotechnology is an...

QSAR Studies of Lanosterol Synthase Inhibitors as Potential Antihypercholesterolemic Compounds

Introduction The World Health Organization (WHO) reports that high cholesterol contributes to about 56% of cases of coronary heart disease (CHD) worldwide and causes more than 4 million deaths each year. High cholesterol (hypercholesterolemia)...

Elemental Influence of Eucalyptus Bark Pellet Ash on Corrosion of Tube in Small Boiler

Introduction Eucalyptus wood is considered a major economic wood in Thailand, and it is an important raw material in pulp production1. In 2002, Thai industries’ utilization of eucalyptus wood amounted to 11 Mton. This...

Effect of Dimethoxy-Methane (C3H8O2) on Combustion Characteristics of a Direct Injection Diesel Engine with Variable Compression Ratio Fuelled with Biodiesel Blends with Diesel (C10.8H18.7)

Introduction There are some issues due to technology advancement relating to an alternate fuel to sustain the automobile sector for the future. However, our dependence is on diesel and petroleum for fueling the transportation...

Synthesis and Anti-Inflammatory Activity of Hydrazide-Hydrazones Bearing Anacardic Acid and 1,2,3-Triazole Ring Based Hybrids

Introduction Hydrazones are a class of organic compounds that contain the azomethine (–NHN=CH-) proton and they are formed by the action of the appropriate substituted hydrazines/hydrazides on aldehydes or ketones by heating in solvents...

Role of Cetyltrimethyl Ammonium Bromide on Enhanced Adsorption and Removal of Alizarin Red S using Amino-Functionalized Graphene Oxide

Introduction Alizarin red S (ARS) is one of the most durable anionic dye which is generally used as a staining agent in textile industries. It is also used to stain biological specimens such as...

Chitosan-Tripoly Phosphate (CS-TPP) Synthesis Through Cross-linking Process: the Effect of Concentration Towards Membrane Mechanical Characteristic and Urea Permeation

Introduction Membrane technology is developing rapidly and refining its method continuosly. Membrane is a thin semi permeable and selective layer that can restrain specific components and pass other components based on diffusion coefficient, electrical...

Application of Terminalia Catappa in Preparation of Silver Nanoparticles to Develop Antibacterial Nylon

Introduction The self-cleaning textiles with antibacterial properties are very useful for the medical world especially those used by patients, doctors, and nurses in a hospital. The use of polyamide fibers in the field of...

Effect of Electrolytic Bath Temperature on Magnetic and Structural Properties of Electrodeposited NiFeW Nano Crystalline Thin Films

Introduction The chemical, mechanical and thermal electrochemical interaction of materials is initiated from materials surface [1]. Therefore, surface is the most important engineering part of a material. The role of technologies which modifying surface...

Influence of Kinetic Variables on Rubber Seed Oil Transesterification Using Bifunctional Catalyst CaO-MgO/SiO2

Introduction Transesterification is the term used to describe the reaction for converting glyceride to simpler corresponding ester and glycerol. The most important application of this type of reaction is production of biodiesel, in which...

The Effects of Pretreatment Methods of Carbon-Containing Wastes in Thermal Catalytic Recycling

Introduction In our modern world, the production of industrial and household materials extremely increases. It has resulted in a large quantity of modern wastes as used tires, plastics and other polymeric materials1. The main...

Corrosion Performance of Stainless Steel and Nickel Alloys in Aqueous Sodium Hydroxide as Revealed from Cyclic Voltammetry and Potentiodynamic Anodic Polarization

Introduction Nickel alloys and stainless steels (SS) are  used extensively in several industrial applications where heat resistance and/or corrosion resistance is required. Nickel is  one of the materials most resistant to a variety of...

Corrosion Processes on Iron Electrode in Presence of Heterocyclic Amines

Introduction For conducting corrosion tests it is necessary to have information about the course of both cathode and anode processes. The most complete information can be obtained by using cyclic voltammetry allowing to establish...

Binding Behavior of Few Lanthanides and Heavy Metal ions with Proteins by Fast and Reliable Affinity Capillary Electrophoresis Method

Introduction Metalloproteins Proteins that have a specific metal ion as cofactor are called as Metalloproteins. A large number of proteins are metalloproteins and all these require metal ion for their function [1, 2]. Popular...

Fatty Acid Extraction of Skeletonema Costatum by using Avocado Oil as Solvent and its Application as an Anti-Aging Cream

Introduction The Creams that promising beauty to consumers such as anti-aging is a lot of outstanding today.  Skin aging is a human change caused by physical, psychological and social factors. Anti-aging reduces wrinkles or...

Structural Analysis of Powder Complex of Tris (1,10-phenanthroline) Copper(II) Trifluoromethanesulfonate Dihydrate

Introduction The synthesis and characterisation of complexes containing transition metals with phenanthroline (phen) as ligand and various common counter ions such as NO3–, BF4–, ClO4–, PF6– have been reported long time ago, e.g. Ito...

NMR, ESR, NQR and IR Studies of Paramagnetic Macro Cyclic Complexes of 1st Transition Series Metal Ions Exhibiting MLCT Phenomenon: A DFT Application.Part: 1. [Bis (2, 2/-bi-pyridine)] Complexes

Introduction The lowest energy conformation of uncoordinated 2, 2/– bi-pyridine (Bipy) both in the solid state and in the solution was coplanar with the two N atoms occupying the trans positions [1,2 ].It was...

Synthesis of Some New Selenonitrone Compounds

Introduction Interest in nitrone is due to their successful application, can be used as building blocks in the synthesis of various natural and biologically active compounds.Nitrone has been extensively investigated, because of their utility...

Green Synthesis of Silver Nanoparticles by Grapefruit’s Peel and Effect of these Nanoparticles on Superoxide Dismutase Enzyme Activity and Growth of Cucumber Plants Inoculated with Rhizoctonia Solani

Introduction Green Synthesis of Nano is a reliable method for the nanoparticles synthesis and environmentally friendly approach considered. About 15 years ago, it is clear that nanoscale materials can exhibit useful properties. Consequently, the...

Synthesis and Study of Catalysts of Cracking on the Basis of Heteropolyacids

Introduction Heteropolyacids (HPA) are the compounds of a proton with a complex anion of inorganic polyoxometallates – molybdenum, tungsten, less frequently vanadium, etc.1-3. In the solid state, HPA are ionic crystals consisting of a...

Rapid Determination of Tellurium in Tellurium-Containing Organic Compounds by Microwave Plasma – Atomic Emission Spectrometry

Introduction Chemistry of tellurium organic compounds (TOC) has intensively been developing in recent decades. The increased interest in this field is due to widely use of these substances as catalysts in organic reactions (e. g....

Synthesis and Spectroscopic Characterization of Some Transition Metal Complexes of Schiff Base 3-(2-hydroxyphenylimino) methyl-4,5-dimethyl-1-phenylpyrazol-3-in-2-one

Introduction Schiff base complexes exhibit remarkable biological activity and play an important role in bioinorganic chemistry. Transition metal Schiff base complexes have received considerable attention because of their pharmacological properties and numerous applications including...

Proteins Level in Sera and Saliva of Type2 Diabetic Iraqi Patients with and Without Proliferative Diabetic Retinopathy

Introduction Diabetic retinopathy (DR), a major microvascular complication of diabetes, has a significant impact on the world’s health systems 1. In patients with diabetes, the global prevalence of any DR is 34.6% and 1...

The Compatibility of Polylactides and Polybutylene Succinate in PLA Blends Based on Thermal, Mechanical, and Rheological Properties

Introduction Nowadays, biodegradable polymers have been widely attended because of environmental friendly. Since, biodegradable polymers can fully degrade in nature, the amount of packaging waste and waste treatment are significantly reduced. Polylactides (PLA) are...

Magnetically Separable ZnO-MnFe2O4 Nanocomposites Synthesized in organic-free Media for dye Degradation Under Natural Sunlight

Introduction In recent years, some research works have revealed that ZnO nanoparticles as photocatalysts exhibit superior advantages than those of TiO2. Owing to their high activities, lower costs, higher quantum efficiency, biodegradation, and environment-friendly...

Synthesis and Free Radical-Scavenging Activities of Di-Mannich Bases of Cyclovalone Derivatives

Introduction Oxidative stress, generating by an imbalance between free radical production and antioxidant defenses, is associated with the damage of various species of molecules including proteins, lipids, and nucleic acids. A role for oxidative...

Synthesis, Characterization and Physicochemical Analysis of some Mannofuranoside Derivatives with Potent Antimicrobial Activity

Introduction Microbial food contaminations have been the cause of severe public health concern over the last few decades1 hence antibacterial and antifungal agents are necessary for food preservation. Many researchers have focused their research...

Development of Zirconia Substituted 1393 Bioactive Glass for Orthopaedic Application

Introduction Ceramics which are used for filling and rebuilding of non-healing bone defects and for healing of damaged or diseased parts of the muscular-skeletal system is termed as bio ceramics [1].Bio inert (alumina, zirconia),...

Synthesis, Characterization and Molecular Docking of Novel Quinoline and Pyridine Derivatives

Introduction Quinoline nucleus represent a significant class of heterocycles, they occur in various natural products, especially in alkaloids and exhibit exceptionally broad spectrum of biological activities [1-3]. The synthesis of quinoline and their derivatives...

Production Methods of Iodine-doped Carbon Nano Tubes (A Review)

Introduction Nowadays chemical modification of single- and multi-walled carbon nanotubes is one of rapidly expanding and important field of scientific research. Various methods of functionalization, intercalation, doping and other numerous treatment methods are designed...

Evaluation of Calcium Aluminate/Calcium Phosphate Based Bio-Cements as Root-end Filling Material

Introduction Bioceramics that have been developed during the last five decades are especially used for repairing the skeleton bone systems as well as in dental applications1. These bioceramics comprising five main chemically bonded ceramics...

Studies of Stereo-Selective Cyclo-Additions and Transformations of Substituted 2-Cyclopenten-1-one with Chiral Anthracene Templates.

Introduction The cyclopentenone skeleton has been reported in diverse biological active compounds. For example, prostanoids such as clavulone I and clavulone II1 isolated from marine natural products and exhibiting strong cytotoxicity. Untenone A2 isolated...

Polarography of Anticancerous Compound 1-(p Nitrobenzyl)–4-Methyl Pyridinium Bromide in Aqueous-Nonaqueous Solvents Mixtures

Determination of Stability Constants of Some Mixed Ligand Complexes of L-Lysine Monohydrochloride and L-Aspartic Acid With Some Bivalent Metal Ions

A Novel Disaccharide from Sonchus Oleraceus

Equilibrium Studies on the Formation of Binary Metal Chelates of Bivalent Metal Ions With Schiff Bases

Nucleophilic Attack of Amine to Chloro (8 -Quinolinolate) W η2-Alkene Platinum (II) Compounds: Formation of Stable σ-(2-Ammonioethanide) Platinum (II) Compounds

Potentiometric Behaviour of Some Mordant Dyes and their Metal Complexes in Mixed Solvents

Levels and Distribution of Ti, La and Li In the M Kditeir A\F4n Waters off the Nile Delta

Formation Constants of Cu(II) Chelates With 4-Methoxy Picolinic Acid N-Oxide and Corresponding Ternary Chelates With Some Amino Acids in Verious Mixed Aqueous Solvents

Synthesis and Characterization of New Trans- [RhCI (Co)(Pr3)] Complexes

Some Reactions With 6-Chloro-2-Methyl 3,1-Benzoxazin-4-One

A New Aproach for Studying the Acid Strength Distribution in Hydrotreating Catalysts by Differential, Scanning Calorimetry

Influence of Aqueous Solutions of Thiocyanate on the Galvanostatic Polarization of Nickel Amalgam Electrodes

Spin-Free*=*Spin-Paired Equilibrium In Mixed Chelates of Ni (II)

Solvent Extraction Behaviour of Ferrous Phenanthroline Complex With Amyl Alcohol

Thermodynamic Study of Ca (II). Sr (II) and Ba (II) Ions on M- Cresolformaldehyde Cation Exchange Resin (Na-Form)

Reductine Enrichment and Flame Atomic Absorption Determination of Trace Amounts of Copper, Cadmium, Palladium and Thallium Ions in Solution

TLC and HPLC Separation of Metal Chelates of Cr(III), Mn(III), Fe(III) and Co(III) With 2,3-Dihydroxy Pyridine

Spectrophotometry Studies on Ni (II) Complex of 3,4,5 Trimethoxy 4′-Methyl Dibenzoylmethane

Infrared and Thermal Studies on the Complexes of Al (III) With Acyl Thiohydrazides as Primary Ligands and Heterocyclic Carboxylic Acids as Co-Ligands

Effect of Methi Intake on Blood Sugar in Human

Determination of the Ionization Constants of Methylamine, Ethylamine, and Triethylamine an Aqueous Solutions at Different Temperatures using Conductance Measurements

Some Reactions of Certain Heterocyclic ∝,β-Unsaturated Ketones

Vibrational and Electronic Spectral Studies of 2,6 DI Chloro 4-Nitro Aniline

Novel Cyanonitrosyl Complexes of Chromium (I) With B Alkyl Substituted Pyridines

Conductance Properties of ∝ -Irradiated Binary Oxides

Cu (II) Complexes of Acid Hydrazones, Thio and Semicarbazone of 2-Aminoinicotinaldehyde and their Antifungal Activity

The Effect of Solvent on the Kinetics of Oxidation of Iron (II)-Malate Complex by Molecular Oxygen in Alcohol-Water Mixtures

Photodecomposition of Oxalic Acid using Sensitizers Undet N2-Laser Irradiation

Spectrophotometry Determination of Nitrate in Water by Reduction to Ammonia With Titanium (III) Chloride

Spectrophotometric Determination of Ce (III) With 2,6-Pyrldinediol

Spectral and Magnetic Studies of Co(II) Complexes

Conductance Properties of Binary Mixed Oxides

Possible Involvement of Chromium in the Mechanism of Action of Metformin

The Kinetic Sorption of CI- and Br- on Varion ad in Water Acetone Media

Electrometric Study on Rare Earth Metal Chelates: Interaction of Rare Earth Ions With N-Thioacetyl-N-O- Tolylhydroxylamine

Synthesis and Spectra of Some Hydrazine Derinativis of 3-Substituted-2-Methyl-5-Pyrrolecarboxaldehyde

Spectrophotometric and Derivative Spectrophotometric Study of Silver Dithizonate in Aqueous Medium

Phenomenal Changes in Ground Water Pollution Caused , by Copper Smelter at Khetri Zone (India)

Infrared Spectra of 3 Bromo-5,6 Benzochromanone and its Normal Coordinate Analysis

Kinetic Rates (4n + 2) π -Thermal Cyclodimerisation of 1 – Allyl-3-Oxidopyridinium Betaine

Excess Volumes and Excess Dielectric Constant of the Mixed Solvents : MeOH-DMF, MeOH-DMSO and DMSO-DMF at 298.15 K

Mechanism of Ru (III) Catalysis In Bromamine-T Oxidation 1 of Some Aldehydes in Acidic Media

Effect of Some Glycine Derivatives on the Dissolution I of Copper in Nitric Acid

Synthesis of Some New Diarylamino P-Benzoquinones and their Conversion Into 1,4-Benzoxazino (2,3 B) -Phenoxazines

Synthesis and Spectral Studies of Some Mixed Ligand Complexes of L-Lysine Monohydrochloride and L-Aspartic Acid With Fe(II), VO (II), Mn (II) and Zn (II) Metal Ions