Browsing Chemistry by Issue Date
Now showing items 21-40 of 106
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Electrochemical Synthesis of Titanium Nano Particles at Carbon Paste Electrodes and Its Applications as an Electrochemical Sensor for the Determination of Acetaminophen in Paracetamol Tablets
(Scientific Research, 2013-11)Titania nano particles were synthesized at carbon paste electrode by cyclic voltammetry and then it was employed for the determination of acetaminophen in phosphate buffer at pH 7.4. Carbon paste electrode with titania ... -
Analysis of the Behavior of Local Cooking Utensils in Tap Water, Salt Tap Water and Vegetable Oil According to the Temperature
(Scientific Research, 2013-12)In Senegal the aluminum scrap are mainly recycled kitchen utensils [1]. The craftsmanship poses the problem of the quality of finished products [1] especially when we know they are used for everyday cooking. Given that ... -
Virtual Antigens made by Laser Beams
(2014-01) -
Quantum Mechanical Modeling of Fluoromethylated-pyrrol Derivatives a Study on their Reactivities, Structures and Vibrational Properties
(2014-02)In this work, the structural and vibrational properties of 1-5-(difluoromethyl-1H-pyrrol-2-yl-) ethanone (DFPE) were studied by using the hybrid B3LYP/6-31G* method. The properties were analyzed and compared with those ... -
Thinning of Emulsion Water-in-Oil Films Stabilized with Modified Aluminum Hydroxide under Influence of Applied Pressure Drop
(Scientific Research, 2014-03)The results of studies of thinning free water-in-oil emulsion films stabilized by solid particles by the Applied Pressure Drop Technique (APDT) are reported. The quasi-equilibrium film thickness achieved by slow increasing ... -
Contaminants in Industrial Lean Amine Solvent and their Removal using Biopolymers: A New Aspect
(2014-03)Natural biopolymers are gaining increasing attention due to their extraordinary affinity towards adsorption of heavy metal ions. In this research, biopolymers such as chitosan and alginate were used to remove contaminants ... -
Kinetic Study of Decolorization of Methylene Blue with Sodium Sulphite in Aqueous Media: Influence of Transition Metal Ions
(2014-04)The kinetics of decolorization of methylene blue (MB+) with sodium sulphite in aqueous media was investigated over the temperature range 20-40°C. The kinetic studies were carried out as a function of different variables ... -
Aromatic Bromination in Concentrated Nitric Acid
(Scientific Research, 2014-04)Action of bromine in concentrated nitric acid allows carrying out mono- and polybromination of moderately deactivated aromatic compounds. 4-Chloronitrobenzene and isophthalic acid turnes into 3-bromo-4-chloronitrobenzene ... -
The Impact of the Physiochemical Properties of Manufactured Nanoparticles on In vitro and In vivo Evaluation of Particle Toxicity
(2014-04)Recently, many in vitro studies evaluating the effects of nanoparticles on cellular physiology have been reported. In in vitro systems, the nano-objects induce not only primary effects but also confounding (artificial) ... -
Three-Center Configuration with Four,Three, and Two Electrons for Carbon,Boron, Hydrogen, and Halogen Exchange. A Model and Theoretical Study with Experimental Evidence
(Scientific Research, 2014-05)The introduction of specific sites in organic frames for accommodation of various modes of bonding has been focused on reaction types which are described by using different theoretical models with or without a definite ... -
Response of CR-39 Polymer Radon-Sensors via Monte-Carlo Modelling and Measurements
(2014-05)International studies of radon indoors and in workplaces have shown significant radiation dose burden of the general population due to inhalation of radon (222Rn) and its short-lived progeny (218Po,214Pb, 214Bi, 214Po). ... -
Bioethanol Production from Rice Straw Enzymatically Saccharified by Fungal Isolates, Trichoderma viride F94 and Aspergillus terreus F98
(Scientific Research, 2014-06)Egypt faces a high population growth rate nowadays, which demands for an increase in agricultural production efficiency. Consequently, agricultural field residues will increase. Rice straw is one of the main agriculture ... -
An Easy and Efficient Method to Functionalize Titanium Dioxide Nanoparticles with Maleic Anhydride
(Scientific Research, 2014-07)In this work, titanium dioxide (TiO2) nanoparticles were functionalized with maleic anhydride (MA), using a non-polar (toluene) and polar protic (ethanol) solvents. The concentrations of MA in the reaction were varied ... -
Nanomaterials for Drugs Delivery
(Scientific Research, 2014-07) -
Synthesis of Luminescent CdTe Nanorods on Anodized Aluminum Oxide Template and Their Utility in Divalent Heavy Metal Ion Sensing
(Scientific Research, 2014-07)A simple one-pot hydrothermal method to grow luminescent CdTe nanorods on porous anodized aluminum oxide (AAO) template is described. These CdTe nanorods on the AAO template were further applied as an optical probe to ... -
Synthesis and Modification of Carboxylated Multi Wall Nanotubes with Atenolol
(Scientific Research, 2014-07)In this paper functionalized multiwall carbon nanotubes (FMWCNT) were modified using atenolol as a class of drugs that were used in cardiovascular diseases containing reactable nitrogen, which could attach chemically to ... -
The Role of Hole Traps in DNA
(2014-07)Two types of whole trap have been discussed for DNA. One type was introduced by Reynaud et al. (Jour. Am. Chem. Soc. 2013, 135, 3953) to account for the properties of whole conduction in an adeninethymine (AT) DNA. In their ... -
Theoretical Treatment of Ion Stopping in Complex Systems
(2014-08)The sort of materials treated by theoretical methods in physics has changed radically in recent years, from small molecules and biomolecules, as well as perfect solids and gasses at zero temperature, to much more complex ...