About: chem-xpert

Increased of Cellulase Obtained from Bacillus Subtilis ITBCCB148 with Chemical Modification Using P-Nitrophenolcarbonate-Polyethylenglycol (NPC-PEG)

Introduction The research on thermostable enzymes nowadays is so interesting due to their used in industrial developments especially in industries of detergent, production of glucose syrup from starch, synthesis of organic compound, paper and...

The Chemical Analysis of Triphenyltin(IV) p-Hydroxybenzoate by Square Wave Voltammetry

Introduction Organotin(IV) compounds are continuous to attract attention not only due to their interesting structural features  but also the wide spectra of their strong biological activities1-3. Their activities are mainly determined by the number...

Optimization of Acid Hydrolysis of Cassava Rhizome into Fermentable Sugars for Bioethanol Production Using Response Surface Methodology

Introduction The agricultural residue (corncob, cotton stalk, rice hulls, wheat straw, etc.) is a rich cellulose element, which can be turned into ethanol by either biochemical or thermochemical conversion means. The researchers were studied...

N-benzylidene-2-aminobenzimidazol as a New Corrosion Inhibitor for Mild Steel in HCl

Introduction Anti-corrosive compounds have considerable agreement in industry due to superior inhibiting characteristics. However, numerous displayed as one of the majour impact, damage the environment, therefore the scientific community start for examination of eco-friendly...

Synthesis and Antioxidant Ability of Some New 6-amino-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-3-yl) Derivatives Bearing 2,6-Dimethoxy-4-(methoxymethyl)Phenol Moiety

Introduction The free radicals are one of the most important factors that cusses critical disadvantage to biomolecules, for instance, proteins, carbohydrates, lipids, and DNA 1. Such this disadvantage considered as source of many infirmity...

Growth and Characterization of Jet Nebulizer Spray Deposited N-type WO3 Thin films for Junction Diode Application

Introduction Transition Metal Oxides (TMOs) have attracted substantial interest owing to their potential applications such as sensors, solar cells, photocatalysis and electrochromic devices [1-5]. ZnO, TiO2, SnO2, MoO3 and WO3 are the most standard...

Removal Bismarck Brown G dye from Aqueous Solution over a Composite of Triazole-Polyvinyl Chloride Polymer and Zinc Oxide

Introduction In last few years nano materials have  much attention  and are become a topic research over our world  due to their  massive importance in our modern life. Among wide variety of these Nano...

Silver Colloid and Silver Mirror Complex as Surface Enhanced Raman Substrate for Volatile Organic Compounds Analysis

Introduction Raman and Infrared spectroscopy are analytical techniques for studying and inspecting a spin or vibrate transition of functional group of molecular structures in solid, liquid, and gas states. The both techniques are different...

LC-MS/MS Method Development and Validation to Determine Three Tetracyclines and Their Epimers in Shrimp Samples

Introduction Tetracyclines (TCs) are a family of broad-spectrum antibiotics that are highly effective against a number of gram-positive and gram-negative bacteria, these antibiotics used worldwide to control bacterial infection and promote aquatic production1-4. Therefore, the easy availability...

Separation and Determination Micro Amount Cd+2 Ion by Using Cryptand C221 Via Liquid Ion Exchange Methodology

Introduction Solvent extraction of Cd (II) from sulfate medium by using bis (2-ethylhexyl) phosphoric acid (D2EHPA) dissolved in toluene. Cadmium is extracted by a cation-exchange mechanism as CdR2.2HR1. Cadmium picrate CdPic2 in water was...

Effect of Steam on the Energy and Activated Carbon Production of A Pilot-Scale Downdraft Steam Co-Gasification

Introduction Technology development and modern science aspiring to boost productivity rather than increase the use of inputs, focuses on linking activities in the agricultural sector and industry by using biomass and technology to optimize...

Synthesis of new -1,3,4-Thiadiazoles Substituted with Oxazepine and Benzoxazepine Moieties

Introduction Thiadiazoles are clear to yellowish liquids which are soluble in alcohol, ether and slightly soluble in water; they are starting material for numerous chemical compounds including sulphur drugs(1). Thiadiazoles are easily metabolized by...

Liquid Ion Exchange Application for Micro Amount Separation and Determination of Ca(II) and Mg(II) as Anions Species with EDTA

Introduction Cloud point extraction method has been applied for Mg2+ ions extraction. The extracted solvated species have λmax=249nm. The study includes the determination of all optimum conditions for extraction, as well as the determination...

Theoretical Spectroscopic and Second Harmonic Generations Studies of 5–Fluoro-2-Methyl Benzonitrile

Introduction Benzonitrile is the child molecule to the parent molecule ammonia to toluene, which had the enormous changing with the consequence of the particular ratio [1]. The fragrances, cosmetics, steroid, aromatic alcohols for color...

Hydrothermal Synthesis of Gadolinium (Gd) Doped Cerium Oxide (Ceo2) Nanoparticles: Characterization and Antibacterial Activity

Introduction Cerium oxide (CeO2) nanostructures are getting more familiarity due to its enhanced properties than that of bulk material [1]. The cerium oxide nanoparticles (CeO2NPs) have  unique structure because of their broad applicability to...

Synthesis and Characterization of Boron and 2-Aminophenol Schiff Base Ligands with Their Cu(II) and Pt(IV) Complexes and Evaluation as Antimicrobial Agents

Introduction The Schiff bases have a wide range of uses and applications because these compounds have  excellent properties such as structural similarities with biological molecules, simple preparation methods with flexibility[1],biological activity as antiviral, antileukemic,...

Removal of 2-Chlorophenol using Rice Husk Activated Carbon Prepared by ZnCl2/H3PO4 Activation

Introduction Activated carbon is a solid material with relatively small particle sizes: powder or granular form having excellent characteristics as adsorbent. The characteristics can be separated in physical and chemical properties and make them...

Recovery of Palladium from Concentrated Nitrate Solutions with N,N′‐Dimethyl‐N,N′‐Dioctyltetradecylmalonamide as new Extractant

Introducation Palladium is one of the most important of the platinum group metals (PGMs) with high corrosion resistance and catalytic properties. It has different important applications in industrial fields such as automobile catalytic converters1-4....

Synthesis of Uniform and Stable Molecularly Imprinted Polymer Particles by Precipitation Polymerization

Introduction Molecular imprinting polymers (MIPs) are known as facile and versatile materials for the creation of tailor-made binding sites which memorized template molecules with shape, size and functional groups1. To produce the durable MIPs,...

New Analytical HPLC Method Development and Validation for the Simultaneous Quantification of Paritaprevir Ombitasvir and Ritonavir in Spiked Human Plasma

Introduction Ritonavir (RTNVR) is an antiretroviral drug used along with other medications to treat HIV/AIDS and hepatitis C.[1-3]. Ombitasvir (OMBTSR) is an antiviral drug for the treatment of hepatitis C virus. Mostly it is...

Templated Roughness on the Surface of Polyamide Nanofibrous Mat by Mesh Electrospinning

Introduction Electrospinning is a versatile method for spinning various polymers into nanoscale fibers. Nanofibers produced by electrospinning or other methods show enhanced properties such as high surface area to volume ratio, flexibility in surface...

Mild Acid Ultrasonic Assisted Extraction of Arsenic Residues in Different Parts of Hot Chilli Prior to Ultra-Trace Determination by flow Injection-Hydride Generation Atomic Absorption Spectrometry

Introduction Chilli (Capsicum annuum L.) is an important fruit industrial crop of Thailand’s economy because of the combination of color, flavor, taste and nutritional value1. A large number of biological properties and potential fitness...

Comparative Modeling Approach upon Synthesizing Silver Nanoparticles from Solanum Virginianum

Introduction Advanced material such as metal derived nanoparticles have extensive applications due to its unique surface properties [1-4]. There are various techniques for producing silver nanoparticles viz., chemical route, photoreduction in reverse micelles [5-10]....

Mixed Ligand Complexes Derived from Isoniazid and Amino Acids; Preparation, Characterization and Anti-Tuberculosis Assay

Introduction Isoniazid is an organic compound that available in different pharmaceutical forms, which used to prevent and treat both latent and active tuberculosis [1]. Tuberculosis is a public health disease that caused several millions...

Synthesis and Characterization of New Polymers Derivatives from Copoly (Vinyl Chloride – Vinyl Alcohol)

Introduction During the last three decades the role of polymers in biomedicine has seen significant growth. The unique physico-chemical properties offered by polymeric materials have been exploited in a variety of biomedical applications. However, an increasingly important...

Comparative Study of Radiation Shielding Parameters for Binary Oxide Glasses

Introduction The study of interaction of nuclear radiations with matter is the important research area for the development of materials which can be used in high radiation environment.  These radiation shielding materials have great...

Synthesis and Characterization of Some Seven Coordinated Complexes of Lanthanide(III) Perchlorates with 4-[N-(4`-Ethylbenzalideneamino)]- Antipyrine Semicarbazone as Primary Ligand and Pyridine as Secondary Ligand

Introduction Lanthanide ions attach special importance in coordination and bioinorganic chemistry. The study of lanthanide(III) complexes with heterocyclic compounds, bearing nitrogen, oxygen or sulphur, as ligand, has attracted increasing attention [1-5]. Lanthanide ions, in...

Study of the Colourimetric and Photoluminescence Proprieties of Polyamide Fiber

Introduction Many works have been interested on the dyeing of nylon fibers and many classes of dyes have been used 1,2. The presence of terminal amino groups in nylon fibers imparts substantivity towards anionic...

Synthesis of Some new Nucleosides Derived from 2- Mercapto Benzimidazole With Expected Biological Activity

Introduction The chemistry of heterocyclic compounds was used to prepare 2-mercaptobenzimidazole and its derivatives for obtaining novel biologically active ingredients such as anthelmintic [1], anti-HIV [2], antifungal [3] antibacterial [4], CNS depressant [5], anti-inflammatory...

Compatibility Estimation of Oligobutadienediol with Simple Oligoetherpolyols for Molded Polyurethane Compositions Development

Introduction Molded polyurethane systems based on oligoetherpolyols and oligobutadienediols are widely used in various items production, produced on free molding technology. Polyether polyurethane are characterized by a rather high level of strength characteristics and...

Taft Equation – A Convenient Tool to Decide the Position of Attack in the Reactions of Aliphatic Amines and Tl (III)

Introduction The Hammett equation, which is based on the linear free energy relation, does not apply to the reactions of aliphatic compounds and ortho substituted benzene derivatives. This is because of interference of substituent...

Quantum Investigation (NMR and Electronic Properties) of SWCNT (6, 6) with 5-Fluorouracil as Nano Carrier

Introduction 5-Fluorouracil was called 5-fu in 1957. 5-Fu used from us food and drug administration for cancer chemotherapy as an antitumor, anti-metabolic agent. 5-Fu used to treat different cancer, including breast, bowel, skin, stomach,...

Co-Sensitized Tio2 Photoelectrodes by Multiple Semiconductors (Pbs/Pb0.05cd0.95s/Cds) to Enhance the Performance of A Solar Cell

Introduction Increasing demand for energy is forcing us to seek into an alternative new resources. Among many available candidates, solar energy is ideal to meet the target because of its abundant, clean, and inexhaustible...

Determination of Selected Toxic Trace Elements in Agricultural Soil and Wells Water Samples by ICP-OES

Introduction Agricultural soil and wells water that used for irrigation may contain high levels of toxic trace elements such as aluminum, arsenic, cadmium, lead, mercury, cobalt, chromium, beryllium and nickel may be hazardous to...

Liquid Biofuel Production from Palm Oil Using Dual-Function of Zn/HZSM-5 Catalyst

Introduction Due to an increase in energy demand and lacking of world’s energy resource, the developments of renewable energies have attracted a great interest. The biomass conversion technology is one of the wonderful candidates...

Design of Cinnamic Acid Derivatives and Molecular Docking Toward Human-Neutral α-Glucosidase by Using Homology Modeling

Introduction α-Glucosidase enzymes (EC 3.2.1.20) are classified into GH13 and GH31 classes.1   These enzymes are the kind of exo-glycosidase that hydrolyzes α-D-glucopyranoside. During the hydrolysis of α-glucosidase, GH13 and GH31 α-glucosidase enzymes generate α-D-glucopyranose...

Unique and Novel Hydrogen Bonding at the Frontiers: 2-Dimethylaminobenzoic Acid and MFn Interaction as Model

Introduction The H-bond is a dipole-dipole or an ion-dipole interaction while the original picture of H-bond definition may be visualized as X-H…Y where X and Y are nitrogen, oxygen, or fluorine, where X-H is...

Activated Carbon Supported Cobalt as Efficiency Adsorbent: Application Chemical Agricultural Polluant 2,4-D Herbicide Removal from Aqueous Solution

Introduction The pesticides in agricultural are applied to increase the profitability and quality of products; however, soils and water sources can become contaminated with these pesticides [1]. Chlorinated phenoxyacetic acid herbicides have been used...

Randic Shape and Size Indices Account for the Variability in Xanthine Oxidase Inhibitory Activity of a Family of Fused Pyrans

Introduction Gout, oxidative stress, and other systemic disorders like cardiovascular and other metabolic diseases have been strongly associated with hyperuricemia, a disorder in the metabolism marked by high levels of uric acid (UA) in...

Chicken Paws By-products as an Alternative Source of Proteins

Introduction Alongside an increase in the consumption of poultry, e.g. approximately 25 kg a year per inhabitant of the Czech Republic, there is a concurrent rise in the production of by-products from the slaughter...

Wool Functionalization by using Green Synthesized Silver Nanoparticles

Introduction With the advent of science and technology, a new era has emerged in the realm of textile processing by negotiating of metal nanoparticles due to nanoscale materials and structures, typically ranging from 1...

Sesquiterpene lactones of Iranian Compositae Family (Astraceae); their Chemical Constituents and Anti-Plasmodial Properties of Tehranolide (A.Review)

Introduction Sesquiterpene lactones are one of the most prevalent and biologically significant classes of secondary metabolite present, and as such have subject to a number of studies. Sesquiterpene lactones are a group of secondary...

X-Doped Graphene Interaction with Anodic Materiallibs

Introduction Thecarbonadoessuch as graphite are layered materials composed of hexagonal lattices sheets; graphite1,2 is including ofcarbon atoms at all direction in the lattice points, while the h-BN is consist of alternating atoms from boron...

Chemical Compounds and Antibacterial Activity of Tephrosia Toxicaria Pers.

Introduction Tephrosia toxicaria Pers. (Fabaceae), also referred as T. sinapou (Buc´hoz), is a shrub popularly known as “timbó de caiena” in Ceará state (Northeast of Brazil) where it is used as pesticide and fishing...

Synthesis, Structure-Activity Relationship, Docking and Molecular Dynamic Simulation of Curcumin Analogues Against HL-60 for Anti Cancer Agents (Leukemia)

Introduction Cancer is a dangerous disease and one of the leading causes death in the world. Currently, the major treatments for cancer include surgery, chemotherapy, and radiation [1]. However, high incidences of undesirable side...

Modern Approaches to Polymer Materials Protecting from Ionizing Radiation

Introduction High energy radiations of alpha and beta particles, X-rays and gamma rays and neutrons are often used in a wide range of industries, including nuclear power, healthcare and aerospace industry. Undesirable effects of...

Synthesis of A Novel PE-3030 Based WPUA Hybrid Binding Substance for Pigment Printing

Introduction Green chemistry, relate inescapable pattern of industry advancement, is that the forward position within the chemistry field at present era. In polymer chemistry, by reducing the practice of organic solvent during theprocess of...

Effect of Solvent on the Formation of Transition Metal Complexes of Tridentate Schiff Base

Electrophoretic Coatings of Polymers

Ultrasonic Effect and Micellar Phenomena of Praseodymium and Neodymium Oleates

A p- Coumaric Acid Ester and Flavonoids from Artemisia Monosperma

Biochemical Responses of Arachis Hypogea L. to Water Pollution

Spectrophotometric Determination of Cerium (IV) With Hexacyanoruthenate as A Chromogenic Reagent*

Determination of Iron (III) in the Presence of Group (III) Cations Using U. V. and Derivative Spectrophotometry Via Complexation With Edta

Determination of Stability Constant of N-Formyl-N- Phenylhydroxylamine Complexes With Y+3, Sm+3, Pr+3 Nd+3, La+3 and Gd+3

The Physico-Chemical Study of the Plant Cassia Absus absus and its General Composition

Thiacetazone Salicylaldimine (ThSa) as Potential Antibacterial and Antitubercular Agents

TLC and HPLC Separation of Metal Complexes of Cr(III), Mn(III), Fe(III) and Co(III) With 5-Chloro-2 3 Dihydroxypyridine

Chemical Constituents of Barks of Wrightia Tomentosa

Infrared Spectral Studies of Hydroxylapatite Containing Barium and Arsenate

Physico-Chemical and Microbiological Study of Ice Cream Sold in Indian Markets

Transport Process in Molten Electrolytes

Studies on the Staudinger Reaction

Estimation, Preparation, Thermal and Infra-Red Studies of Scandium (III)-N-m and p-Methyl Benzene Oxamic Acid, Complexes

Effect of Substituens on the Electro Reduction and Acidity of 2-Benzylidene-1.3-Indandione

An Application of Molecular Mechanics Calculations on Epoxidation Reaction of Zerumbol

Synthetic and Physicochemical Studies on Copper, Nickel, Cobalt and Manganese Complexes Containing Schiff Base Ligands

Iridium (III) Catalysed Oxidation Kinetics of Some Aliphatic Alcohols by Ceric Sulphate

Flame Atomic Absorption Determination of Cu, Ni, Zn, Cd, Au and Pb Through Extraction Seperation of their 4-Amino-3,5-DI-2- Pyridyl-1,2,4-Triazoletetraphenylborates In Methylisobutylketone

Effect of Heavy Metal Ion Concentration and PH Values on the Sorption Behaviour of Prepared Exchangers

Synthesis and Antibacterial Aciwtty of 3-Phen Ylp6-Nitr O-7-M Eth0xy-4-Subtitiited

Studies on Synthesis And Antitubercular Evalution of Some New -4- Thiazolidinone Derivatives

Synthesis and Antibacterial Activity of 2-Amino-4-(5′-Chloro-2′- Hydroxy-4’Methylphen-a’yl)-6-Arylpyrimidine Derivatives

Spectrophotometric Determination of Copper With 3-Hdroxy-3-Phenyl-1-P-Carboxyphenyl Triazene

Spectrophotometric Studies on Iron Complexes of 6-Methyl Flavonol and 4-Methoxy Flavonol

Stability Constants of 2-Amino-3-Methyl-5-Nitro Benzenethiol With Bivalent Metal Cations

Chemical Analysis of Some Medicinal Plants of Garhwal Himalaya (1)

Use of Lotus 1-2-3 Spreadsheet Application for Substoichiometric Radio Analytical Methods

Ion Exchange Column Studies With Nicotine, Choice of Solvent and Flow Rate. the Extraction of Nicotine from Raw Materials

Synthesis and Spectral Studies of Bis (Aroylhydrazones) of 1,1′- Diacetylferrocene And Aroylhydrazones of Monoacetylferrocene

Method for Determination of Trace Metals Zinc, Cadmium, Chromium, Nickel and Lead by Graphite Furnace Atomic Absorption Spectroscopy

Template Syntheses of Tetraazamacrocyclic Complxes of Cadmium (II)

Epoxy Compositions for Electrodeposition

Spectrophotometric Determination Of Iron (III) After Separation By Adsorption of its 1-Diethylamino-2-Propanol Complex on Microcrystalline Naphthalene.

Photodecomposition of Malonic Acid under Nitrogen Laser Irradiation

Electron Spin Resonance Spectral Studies of Vanadyl Complexes With Some Schiff Bases

Synthesis and Biological Activity of Some 3,5-Dichloro-2-Hydroxybenzenesulphonylamino Acid Derivatives

Synthesis of Unsymmetrical 1, 4-Benzoxazino-(2,3b)-Phenoxazines

Studies on Pyrido [2,3-D] Pyrimidine: Synthesis, Biocidal Activity and Spectrophotometric Studies of Solution Complexes With Co (II) and Ni (II)

Effect of Electroactive Group on Reduction of the Hydrazone Linkage at the D M E