Volume 33, Number 1
Volume 33, Number 1
Calcium Ion Selective Electrode Based on Schiff Base as Ionophore and Determination of Thermodynamic Functions and its Analytical Application
Introduction The introduction of new ion-selective electrodes has played a fundamental role in the development of various sensory elements according to the charge and size of the target ion in clinical and environmental assays[1-8]....
Read MoreSynthesis of CMC from Palm Midrib Cellulose as Stabilizer and Thickening Agent in Food
Introduction Indonesia is the largest exporter of palm oil and its derivatives after Malaysia which is almost 32.64% of global export. North Sumatra is recorded to have 1.1 million hectares of palm oil plantation....
Read MoreAnalysis of Metal Content in Water of River Beas in Himachal Pradesh, India.
Introduction River basins play an important role in development of human settlements. Major civilizations often appeared where fresh water was most accessible and plentiful. River basins are useful units for management of water resources(Smith...
Read MoreVermiculite Absorption Capacity Increasingby Acid Activation
Introduction Vermiculite is a naturally occurring mineral that expands when heated.High adsorption and ion exchange properties, ease of obtaining modified, including organic-mineral forms, relatively good acid and alkali resistance determine widespread use and sustained...
Read MoreQuantitative Estimation of Fungicide, Pesticide Residues from Pepper (Piper Nigrum L.) as Obtained in the Selected Area of Kodagu District, Karnataka.
Introduction Pepper (Piper nigrum L.) belongs to the family Piperaceae, the crop grow well in a temperature range between 25°-40°C and rainfall around 1250 mm. In India, Karnataka, Kerala, Tamilnadu states are play a...
Read MoreNovel Salt of Tinidazole with Improved Solubility and Antibacterial Activity
Introduction In recent times, enormous dedication and investigations in the field of pharmaceutical technology are being focussed in the direction of the prefabrication of the active drug molecules in order to increase the biological...
Read MorePreliminary Study on Natural Radionuclide Concentration in Samosir Area
Introduction Radionuclides in the soil come from radioactive dust fall-out, the outcome of weathering of rocks containing natural radionuclides or derived from material from the eruption of the volcano (Artinigsih et al, 2008). Radionuclide...
Read MoreEffect of Eggshell on Mechanical Properties of Epichlorohydrin Cross-linked Chitosan/Eggshell Composites
Introduction Biopolymers have received much attention in many applications due to their environmental friendly properties However, the development of biopolymers with performance equals to common synthetics polymers is still in open challenge. chitosan-based materials...
Read MoreResearch of Oil Road Bitumen Modification with Low Density Polyethylene
Introduction Road bitumen under aggressive environmental influences cannot always meet the desired quality requirements. For example the action of the temperature difference in summer and winter, the load deformation and so on. This leads...
Read MoreInfluence of Chemical Dose Splitting on Reduction of Carcinogenic Compounds During Paper Mills
Introduction Water pollution is an ever increasing problem which has drastically amplified during the last few years. The major reason behind this is rapid industrialization needed to sustain exploding human population. The lack of...
Read MoreChemical Composition and Radical Scavenging Activity of Citrus Limon Peel Essential Oil
Introduction Essential oils are complex mixture of volatile compounds which consist of terpenes and their oxygenated derivatives such as aldehydes, alcohols and ketones with high potential bioactivity like antibacterial, antifungal and antioxidant that extracted...
Read MoreEffect of Methyl Cellulose/Poly(Acrylic Acid) Blends on Physico-Mechanical Properties of Portland Cement Pastes
Introduction Chemical admixtures are additives to the concrete batch that enhance the performance of concrete in the fresh state [1-4]. Depending on the physical and mechanical properies, admixture can be classified as water reducers,...
Read MoreInvestigation of Liquid Smoke’s Composition from Peach Tree Wood Using GC-Massand its Microbial and Physiochemical Properties on Hotdogs
Introduction Meat products are one of the most popular food products and comprise a large portion of the world’s market. These products are categorized in the class of perishable foods and have the potential...
Read MoreSynthesis, Characterisations, Lipid Lowering Activity and Antibacterial Activities of Some Benzoyl Ester Substituted Embelin Derivatives
Introduction It has been long recognised that natural products acts as a lead structures for various drug discovery 1-2 because of their high chemical diversity, biochemical specificity and other molecular properties that make them...
Read MoreCorrelation of Ionic Imprinting Cavity Sites on the Amino-Silica Hybrid Adsorbent with Adsorption Rate and Capacity of Cd2+ Ion in Solution
Introduction Increasing of heavy metal using in a life activity has given the negative impact as environmental pollution derived from an industrial processing or heavy metal using at an environment1-3. Cd is one of...
Read MoreMetal complexes of Proline-Azo Dyes, Synthesis, Characterization, Dying Performance and Antibacterial Activity Studies
Introduction The expansions of new structure of azo compounds have been a subject of regard and much novel structure of these compounds1. Azo compounds with the hetrocyclic diazo component from colored complexes with universality...
Read MoreCalcium Ion Selective Electrode Based on Surface Modified Zeolite Based Ionophore and its Analytical Application
Introduction The introduction of new ion-selective electrodes has played a fundamental role in the development of various sensory elements according to the charge and size of the target ion in clinical and environmental assays[1-8]....
Read MorePreparation of L-Arginine-Modified Silica-Coated Magnetite Nanoparticles for Au(III) Adsorption
Introduction In the era of modern technology today, gold is not only used for fixing, but also for any application such as household appliances, electronics, cosmetics, biosensors and for the treatment of cancer cells1,2....
Read MoreA New Material Based on Clay and its Successful Application to Fix the Glucose
Introduction There are a wide variety of argillaceous rocks, depending on their structure and mineralogical composition, of which only few are used in medical therapy1. Each of these clays can, very often, shows some...
Read MoreSpectral, Thermal and Antimicrobial Studies of Gamma Irradiated Potassium Diaquabis (Oxalato) Cobaltate (II)
Introduction Gamma irradiation is known to increase the defect concentration in crystalline solids leading to chemical damage, displacements and extended lattice defects. Hence properties sensitive to defect concentration may be affected. Infrared studies of...
Read MoreStudies of the Substitution Yttrium in Pbtio3 Systems
Introduction Lead titanate (PbTiO3 (PT)) a perovskite type compound has a great scientific and technological interest. This compound relongs to the of high performance materials for various types of applications: dielectrics for capacitors, electromechanical converters, infrared...
Read MoreEffect of Post Annealing on Antibacterial Activity of Zno thin films Prepared by Modified Silar Technique
Introduction Materials used in hospitals have high risk of bacterial and fungal infections. It is a challenging task to control the bacterial and fungal contamination in hospitals especially in surgical areas and intensive care...
Read MoreDifferent Applications of Magnetic Nanoparticles in the Rapid Monitoring of Ochratoxin A
Introduction Molds are filamentous fungi which found in many feedstuffs, and produce toxins called mycotoxins. However, mycotoxins are classified as secondary metabolites and their function are not related to the mold’s existence, but they...
Read MoreSynthesis, Characterization and Anti Mycobacterial Activity of Novel Hydrazones
Introduction Tuberculosis (TB) is a worldwide pandemic caused by different species of mycobacteria. Mycobacterium tuberculosis is a successful pathogen, which causes tuberculosis and is the greatest single infectious cause of death worldwide, killing approximately two...
Read MoreDoping Reaction of some Nanotubes with Aluminium Atom: A Thermodynamic PM6 and ONIOM Investigation
Introduction Doping nanotubes is an effective way to extensively modify their various properties [1-4]. The doped nanotubes can exhibit dramatic changes with respect to the undoped material [5]. For example BNNTs are mainly insulators....
Read MoreConstruction and Performance Characterization of Ion Selective Electrodes for Potentiometric Determination of Citapolarm Hydrobromide in Biological Fluids
Introduction Citalopram hydrochloride(CT) (Fig. 1), (1RS)-1-[3-(Dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-carbonitrile hydrobromide, is an antidepressant drug of the selective serotonin reuptake inhibitor (SSRI). The therapeutic mechanism of action of SSRIs involves the potentiation of serotonin [5-hydroxytryptamine (5-HT)] by the...
Read MoreAn Investigation of pH Effects on the Properties of the Fabricated Banana Flower Extracts-based Organic Solar Cell
Introduction Dye-sensitized solar cell (DSSC) is the third generation solar cell which is considered as future alternative energy source, a dye-sensitized photovoltaic cell of TiO2. The basic principle of DSSC is transforming light energy...
Read MoreSynthesis, Spectroscopic Characterization, Computational Exploration of 6-(2-(2, 4-Dinitrophenylhydrazano)-Tetrahydro-2-Thioxopyrimidin-4(1h)-one
Introduction In organic materials, hydrazones and its derivatives attracted attention due to crystallizing nature of asymmetric structure and flexibility that offer modification of non-linear properties. The nonlinear optical properties were investigated using nanosecond and...
Read MoreInfluence of pH Variation on Structural and Magnetic Properties of Ni-Zn Ferrite Nanoparticles Synthesized by Auto Combustion Method
Introduction Soft ferrite materials draw more attention due to their unique properties [1]. Ferrite powder have attracted the researchers and investigators of different fields due to their numerous applications like memory system, medical science...
Read MoreKinetics and Thermodynamics of Oxidation of Some Meta-Substituted Anilinesby Tetrabutylammoniumbromochromatein Aqueous Acetic Acid Medium
Introduction Aniline is known to be carcinogenic and also reacts easily in the blood to convert haemoglobin into methaemoglobin, preventing oxygen uptake. Aniline and its derivatives are used as intermediates for the manufacturing of...
Read MoreOil Products Quality Improvement by Adsorption Method
Introduction Changing oil quality during storage is dependent on their chemical composition, the conditions of storage, transportation and application hardware design features and their surface state of contacting the oil. Under the influence of...
Read MoreAmino Acid Derivative of Calix[4]Arene as Schiff Base for Sensing of Copper(II)
Introduction Calixarenes are cyclic oligomer which have been applied as ionic and molecular recognition in the past years [1]. The Calixarene chemists have highly noticed selective proteins, anionic or cationic sensing by changing in...
Read MoreOligomers Solidification Depending on the Nature, Molecular Mass, Type and Reactional Group Containing
Introduction Currently urethane forming materials and compositions based on them are in demand for the production of sealants, glues, adhesives, waterproofing, sport, and other types of roof coverings.The main range of reactive oligomers of...
Read MoreSpectrophotometric Determination Studies of Cefotaxime (CFX) and their CFX- Cd (II) and CFX- Cu (II) Complexes
Introduction The cephalosporins are β-lactam antibiotics isolated from cephalosporium species and/or prepared semi-synthetically. This comes under the class of 7-amino cephalosporonic acid (7-ACA) derivatives and are much more acid-stable than the corresponding 6-APA compounds....
Read MoreStudy on the Properties and Photoactivity of TiO2(nanorod)SiO2Synthesized by Sonication Technique
Introduction TiO2has been widely used as a photocatalystin various applications from cleaning the environmental to generating electricity. These include applications in the air and water purification systems1,2, products of self-cleaning surfaces1,3,sterilization1,3, hydrogen evolution1,2, and...
Read MoreSynthesis, Characterization and Cytotoxic Activity of Betulinic Acid and Seco-Betulinic Acid Derivatives against Human Colorectal Carcinoma
Introduction The pentacyclic lupane triterpenoid betulinic acid, 1 (3β, hydroxy-lup-20(29)-en-28-oic acid) is one of the first natural products identified from plants in 1788 [1]. It exhibits a number of biological activities including antitumor properties...
Read MoreIn Situ Biomimetic Synthesis of Gelatin-Carbon Nanotube-Hydroxyapatite Biocomposites as Bone Filler
Introduction Bone is a natural composite material consisting of organic phase containing- type-I collagen and inorganic phase named hydroxyapatite (HA) with a chemical formula of Ca10(PO4)6(OH)2 that can enhance osteoconductivity. In presence of a...
Read MoreSynthesis and Biological Activity of Novel (E)-N’-(Substituted)-3,4,5-Trimethoxybenzohydrazide Analogs
Introduction Eudesmic acid is a o-methylated analogue of gallicacid and is found in Eucalpytusspp1. The chemical name of gallicacid, is 3,4,5-trihydroxybenzoic acid, and exists either in the pure form or as a phenoilic constituent in various parts...
Read MoreSynthesis of Some Pyrazole containing Chalcones and Pyridine-3-Carbonitirles and Study of their Anti-inflammatory Activity
Introduction In the last few decades research has progressed in understanding the mechanism of inflammation which is a physiological process essential for the survival but it can also cause human morbidity and mortality1,2. The...
Read MoreAntioxidant Assay Guided Separation of the Methanol Stem Fraction of Binahong (Anredera Cordifolia) using Cyclic Voltammetry Method
Introduction Interest in plant natural products is certainly undergoing a renaissance at the present time. Many plants have been investigated in order to identify them depending on the amount of phytochemicals they have and...
Read MoreSolidification Features of Butadiene and Piperylene Copolymers and Assessment of Thermal-Oxidative Stability of Elastic Polyurethane on its Basis
Introduction The main problem of СКДП-Н oligomer macromolecule is its non-homogeneity and low functionality (average 1.5) by hydroxyl groups. Considerable amount of mono- and nonfunctional molecules builds some limitations for getting polyurethanes of a...
Read MoreSynthesis and Characterization New Polyurethane Membrane From Hydroxylated Rubber Seed Oil
Introduction Indonesia is an agricultural country which has a wide range of biological, one of them is rubber plant (Heveabrasiliensis)1. The products of rubber plant are only put emphasis on the processing of latex...
Read MoreQuantitative Chemical Analysis of Slag Ash of Novocherkassk State District Power Plant
Introduction Novocherkassk SDPP is located in Donskoi housing complex, Novocherkassk, Rostov region of Southern Federal District (Russia). Slag ash are generated after combustion of solid fuel in boilers of Novocherkassk SDPP. Dry ash after...
Read MoreAntioxidant Activity of Extracts of HalodulepinifoliaSeagrass from Solvents with Different Polarities
Introduction Seagrasses are flowering plants (angiosperms) which grow in marine, fully saline environments.Seagrasses are a rich source of structurally novel and biologically active metabolites which they produce inorder to sustain the extreme environmental conditions prevailing under sea1 Seagrasses produce...
Read MoreIsolation of Lupeol, Design and Synthesis of Lupeol derivatives and their Biological activity
Introduction Triterpenoids are secondary metabolites derived from plants, fungi etc. triterpenoids contain about thirty carbon atoms, and their structures are considered to be derived from the acyclic precursor squalene 1. Triterpenes are widely distributed...
Read MoreSynthesis, Characterization and Antibacterial Studies on Mn(II) and Fe(II) Complexes of N, O Donor Salicyloylpyrazoleoxime Schiff Bases
Introduction Hydroxyoximes are special class of Schiff base ligands which contains hydroxyl group in addition to imine functionality. It is easy to make coordinate bond with bivalent metal through Oxygen atom of phenol by...
Read MorePhysical Chemistry Properties of Fe3O4 @ Cyclodextrin@ (12, 12) Swcnts as a Catalyst
Introduction The great temperature shifts catalyst (HTS) of iron oxide1-3 stabilized by chromium oxide1-5. This chrome-iron alloys as a catalyst is diminished at chemical-reactor-start up for generating Fe3O4 from α-Fe2O34 and Cr2O35. Fe3O4 is...
Read MorePreparation of Pb(II)-Carboxymethyl Chitosan Pec PEGDE Film as Selective Asorbent for Removal Pb(II) Ion
Introduction Chitosan, one of a cationic polysaccharida of glucosamine and N-acetyglucosamine from natural polymers. Chitosan derivative of chitin by deacetylated processes [1]. It is a nonpoisonous, biodegradable, bio compatible and bioactive materials. The amino...
Read MoreCalculation of ESR Spin- Spin Relaxation Times (1/T_2) Transition Metal Ion Complexes: A DFT Application
Introduction Magnetic resonance was associated with a typical a problem not encountered in higher energy forms of spectral techniquesas the two spin levels were nearly equally populated [1-3] as at 298K with value:N upper/N...
Read MoreEffect of Platinum loading on Graphene Nano Sheets at Cathode
Introduction Polymer electrolyte membrane fuel cells (PEMFC) are being developed as electrical power sources for vehicles and portable applications as an alternative to conventional internal combustion engines, secondary batteries, and other conventional power sources....
Read MoreNano Nickel-Cobalt Ferrite Catalyzed one Pot Synthesis of 14-Aryl-14H-Dibenzo[A, J]Xanthenes and 12-Aryl-8, 9, 10, 12-Tetrahydrobenzo[A]Xanthene-11-one Derivatives
Introduction One–pot, Multi Component Reactions (MCRs) are having momentous meaning due to formulation of mono product with elevated yields by the blending of two or more components in a one step process. [1] [2]....
Read MorePhytochemical and Antioxidant Activity in Seeds and Pulp of Grape Cultivated in Thailand
Introduction Recently, the study of substances with protective effects against reactive oxygen and free radicals has attracted increasing attention. Several sources can produce free radicals that are both intra- and extra-cellular1,2. Free radicals can...
Read MorePreparation, Characterization and Photocatalytic Activities of TiO2 towards Methyl Red Degradation
Introduction Removal of toxic and harmful organic effluents from environment using advanced oxidation process (AOP) has been attracted extensive attention in today’s scientific world [1]. Semiconducting metal oxides like TiO2, ZnO are most widely...
Read MoreComplex mineral fertilizers: opportunities of manufacturing them from technogenic wastes
Introduction Development of industry all over the world has made the problem of complex processing of technogenic industrial wastes and involving non-standard mineral resources in the production to be topical. Phosphorus production, widely demanded...
Read MoreGreen Chemistry Formation of Stable Ag Nanoparticles (Agnps) In Isopropanol Solvent
Introduction In recent years, research on the synthesis of metal nanoparticles has been widely discussed and has become a major topic due to their new or improved chemical, optical, electric, and magnetic properties compared...
Read MorePhenolics and Ascorbic Acid Related to Antioxidant Activity of MaoFruit Juice and Their Thermal Stability Study (Review Article)
Introduction Nowadays, there is growing interest in useof polyphenolic antioxidant-rich plants as dietarysupplements1,2.Health expertsrecommendto increase the consumption of fruit since there is an evidence linking a diet rich in fruit withreduced incidence of various...
Read MoreChemical Profiling of Acalypha Indica Obtained from Supercritical Carbon Dioxide Extraction and Soxhlet Extraction Methods.
Introduction Acalypha indica is one of weed plants that contains important phytochemicals for human health applications. It can be found commonly in India, Pakistan, Sri Lanka and Thailand. The extracts of this plant from...
Read MoreDesign and Synthesis of Two Steroid-Pyrrolo-Triazecin Derivatives Using Estrone and Pregnenolone as Chemical Tools
Introduction For several years there has been interest on the preparation of some substituted pyrroles; for example, the synthesis of the reaction of 1,4-diols with amines to form substituted pyrroles was developed1. Other data2...
Read MorePreparation and Characterization of Nano Titanium Dioxide Photocatalysts Via Sol Gel Method over Narrow Ranges of Varying Parameters
Introduction Titanium dioxide is exceedingly considered as one of the most promising semiconductors. Its application areas cover a wide variety of different disciplines including both industrial and academic sectors [1-12]. Preparation of the photocatalytically...
Read MoreXanthone as Antimalarial: QSAR Analysis, Synthesis, Molecular Docking and In-vitro Antimalarial Evaluation
Introduction There are five types of malaria parasites that commonly infect humans, the first one is Plasmodium falciparum, which is the most fatal among otherPlasmodium parasites. Furthermore, Plasmodium vivax,Plasmodium ovale, and Plasmodium malariaethat cause...
Read MorePredicting ESR Peaks in the 4d and 5d Transition Metal Ion Complexes by NMR, ESR and NQR Parameters: A DFT Study
Introduction Only a limited research work had been done in the experimental determination of number of ESR peaks in complexes of 4d and 5d metal ions [1-5] like Zr (III) [6-8],Hf (III) [7-9]; Nb...
Read MoreAntimicrobial and Thermal Properties of Coating Systems Modified with ZnO Nanoparticle and its Hybrid Forms: (A Review)
Introduction The concerns over the increase in worldwide epidemic and infectious diseases have accentuated the need to design antibiotics and promoting sanitary practices. World smallest life (microbes) are establised to be the most virulent...
Read MoreAnalysis of the Possibility of the Crown Ether Structure Modification by the Introduction of Chelate Fragment
Introduction The polydentate reagents which are able to bind with cations that form various polyhedrons are very important in the chemistry of coordination compounds. Thereat mainly due to entropy factors there is a chelate...
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