Bromination of (E)-Stilbene

28 Nov 2017

4 (1,498 )

Kaisha Butz   Abstract: The purpose of this experiment was to synthesize the second intermediate (meso-stilbene dibromide) in the E-Stilbene reaction by Bromination. It was hypothesized that if the reaction was heated at 120°C for five minutes the reaction between E-stilbene and the pyridium bromide perbromide would occur, and meso-stilbene would be created. After the reaction occurred the results were analyzed by IR and ...

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Development of Alcohol Sensor for Pharmaceutical Products

28 Nov 2017

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1.0 Title Development of alcohol sensor for detection of alcohol content in pharmaceutical products 2.0 Introduction Over the years, alcohol is being used widely in various number of industries. Alcohol poisoning and inflammation may happen whenever the alcohol concentration exceeds the toxic level for the living creatures. Nowadays, alcohol abuse is one of the worldwide social problems and has become a public sanitation issue. Hence, the preventative pathways ...

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Production of PR-protein 1 in Mangroves Leaves | Experiment

28 Nov 2017

6 (2,318 )

1. Abstract One important trait of a plant is its ability to form natural barriers that keep harmful microorganisms away. For instance, mangrove leaves may produce a hormone called salicylic acid to inhibit the growth of fungal pathogens. Such a hormone may induce an antimicrobial substance known as Pathogenesis Related (PR) proteins. A lot of Pathogenesis related protein researches have been done with tobacco and tomatoes ...

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2D Colloidal Nanocrystal for Optoelectronic and Solar Cell

28 Nov 2017

4 (1,295 )

Novel 2D colloidal nanocrystal for optoelectronic and solar cell applications Recently, 2D material has attracted tremendous attention due to their fascinating physicochemical properties. Particularly, the discovery of graphene, a single layer of carbon atoms arranged in a 2D honeycomb lattice has ignited the research on this class of 2D materials due to extraordinary mechanical, electric and optical properties not observed in their bulk counterparts. Considering graphene ...

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Performance of Raspberry-Like Gold Nanoparticles (Au RLNPs)

28 Nov 2017

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Improvement of Stability and Catalytic Performance of Raspberry-Like Gold Nanoparticles by Silica Coating High Catalytic Performance of Raspberry-Like Gold Nanoparticles (Au RLNPs) and Enhancement of Stability by Silica Coating Kiouk Seo, Hien Mai Duy and Hyojong Yoo*   Abstract. The raspberry-like gold nanoparticles (Au RLNPs) synthesized through the reduction of HAuCl4 by the use of NaOH and Brij35 surfactant show high catalytic activities in ...

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Organopalladium Reagents and Intermediates

28 Nov 2017

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João T. V. Matos Table of contents Table of contents 1. Introduction 2. Organopalladium reagents and intermediates 2.1. The characteristic features for the use of palladium in organometallic chemistry 2.1.1. Oxidation States of Palladium 2.2. Preparation of organopalladium reagents and intermediates 2.2.1. π-Ally Palladium Complexes 2.2.2. Cyclic aryl palladium complexes 2.2.3. Palladium Olefin and Diene Complexes 2.2.4. Palladium-TV-Heterocyclic Carbene Complexes 2.3. Methods for structural ...

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Superoxide Dismutase: Oxidative Stress

28 Nov 2017

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SUPEROXIDE DISMUTASE: OXIDATIVE STRESS Sebastian, Jay Francine A. and Feliciano, Angel P. III   INTRODUCTION Superoxide Dismutase or SOD is an enzyme that has a metal-containing antioxidant. It reduces any harmful free radicals of Oxygen or O2 forming during a normal metabolic cell state that it will form oxygen or O2 and Hydrogen peroxide. Its name originated from dismutation which means simultaneous oxidation and reduction, with ...

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Analysis of of Quercetin in Camellia Sinensis Extracts

28 Nov 2017

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ABSTRACT A precise and feasible reversed-phase high-performance liquid chromatographic (RP-HPLC) method for the novel analysis of of Quercetin in aqueous and alcoholic extracts of Camellia sinensis extracts with internal standard has been developed. The analysis was carried out on a Phenomenax-C18 column (250 × 4.6mm, 5μm). reversed-phase column, using a mixture of acetonitrile and 0.1% orthophosphoric acid in water at 60:40 ratio as the mobile phase; ...

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Nanospheres of Ag–coated Fe3O4 Synthesis

28 Nov 2017

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Nanospheres of Ag–coated Fe3O4 were successfully synthesized and characterized. Photocatalytic properties of Fe3O4@Ag composites have been investigated using steady state studies and laser pulse excitations. Accumulation of the electrons in the Ag shell was detected from the shift in the surface plasmon band from 430 to 405 nm, which was discharged when an electron acceptor such as O2, Thionine (TH), or C60 was introduced into the ...

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Porous Multishell Hollow Cu2O Microspheres Experiment

28 Nov 2017

8 (2,931 )

Preparation of Porous MultishellHollow Cu2O Microspheres and their catalytic activity in photodegradation of Rhodamine-B Lingling Sun, Deyan Han*, Ruirui Hao,Guohong Wang*   Abstract In this study, Porous Multishell Hollow Cu2O Microspheres were fabricated by One-Pot solvothermal method of copper(II) with glutamic acid under 160℃. The as-prepared monodisperse Cu2O hollow microspheres were characterized by Xray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), fourier transform ...

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Investigation of Single Chain Sugar-based Glycolipid

28 Nov 2017

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Review on Investigation of Single Chain Sugar-based Glycolipid Self-Assembly in Lyotropic Phase Using Fluorescence Spectroscopy M.Faisal Khyasudeen*   KEYWORDS (Word Style “BG_Keywords”). If you are submitting your paper to a journal that requires keywords, provide significant keywords to aid the reader in literature retrieval. ABSTRACT: Glycolipid in lyotropic phase has been widely study due to its nature similar to those in biological membrane. This ...

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Gravimetric Analysis of a Chloride Salt

28 Nov 2017

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Rania Williams Nour Wehbe   Purpose To discover the amount of chloride in a strange salt, in order to demonstrate regular methods used in gravimetric analysis Theory This equation describes the reaction between silver ion and chloride which results in the product silver chloride. Ag+ (aq) + Cl- (aq) → AgCl (s) Silver nitrate is used to precipitate chloride because it gives ...

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Uses of Herbal Medicine: An Overview

28 Nov 2017

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1 Folk medicine According to WHO- ‘Traditional medicine is the sum total of the knowledge, skills, and practices based on the theories, beliefs, and experiences indigenous to different cultures, whether explicable or not, used in the maintenance of health as well as in the prevention, diagnosis, improvement or treatment of physical and mental illness.’ (Qi, 2014) Generally traditional medicines, alternative medicine, indigenous medicine, complementary medicine, or ...

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Fluoroquinolones for Infectious Diseases Treatment

28 Nov 2017

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1.10 Pharmaceuticals 1.10.2 Fluoroquinolones Fluoroquinolones are extensively used for treatment of various infectious diseases. [[1]]. Because of their extensive Gram negative treatment, quinolone antibiotics were initially used for the treatment urinary tract related diseases. Higher drug concentrations promote their effectiveness in the treatment of urinary infections. lomefloxacin, levofloxacin ciprofloxacin, ofloxacin, enrofloxacin, and gatifloxacin have higher renal clearance to analyze the activity of the kidney and urine ...

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Shellac for Film Formation and its Modification

28 Nov 2017

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Shellac for film formation and its modification for enhancement of properties Abstract With the growing environmental concerns associated with synthetic polymers, the need for biopolymers has strongly emerged which can have applications ranging from packaging to electrical applications. Shellac, which is a naturally occurring product resin obtained from insects (female lac bug), is one such component which can be used for production of biopolymeric film. However, ...

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The Design of Molecular Magnets

28 Nov 2017

8 (2,998 )

Ashlea Hughes 1. Polyoxometalates Polyoxometalates (POMs) are clusters consisting of linked metal oxide polyhedral. They are commonly anionic, although some cationic species have been reported.1 Due to this charge, counter ions are often associated with POMs. The metal ions which form the POMs often belong to group 5 or group 6 in the periodic table and possess a high oxidation state causing an electron ...

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Introduction to Buffer Solutions

28 Nov 2017

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  Name of Candidate mayurathan Introduction Buffer solution is a solution consisting a mixture of weak acid and its conjugate base . Furthermore they declare that buffer solutions are very essential to keep the pH value nearly constant in variety of chemical application. ( Crowe and Bradshaw 2010) Many life forms thrives only in ...

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Synthesis of a Potential Enzyme Inhibitor

28 Nov 2017

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Delaram Salehifard Aim Synthesis and characterisation of Benzocaine. Introduction The Fischer esterification of 4-amino benzoic acid is catalysed by an acid is fully reversible. Method: 3g of 4-aminobenzoic acid was weighed out and placed into a dry 100cm3 round bottom flask (ensuring no residues are left inside the joint). 20 cm3 of methylated spirits was measured out and added to the 4-aminobenzoic acid ...

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Inhibition Effectiveness of Au Compounds

28 Nov 2017

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Function of the “Guiding Bar” on Inhibition Effectiveness of Au Compounds on Thioredoxin Reductase 3 Qi Liu   Introduction Mammalian thioredoxin reductase (TR) is an Nicotinamide adenine dinucleotide phosphate (NADPH) dependent flavoprotein oxidoreductase, which is involved in reducing the disulfide of thioredoxin (Trx) using NADPH (Figure 1). Trx can reduce many important proteins, such as ribonucleotide reductase (RNR), which produces deoxyribonucleotides for DNA synthesis1, ...

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Modelling Programmes for Industrial Scale Drug Production

28 Nov 2017

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Different modelling programs of the production of a drug on an industrial scale Crystallisation: Crystallisation is usually used for the split-up, purification and the creation stage in the chemical industries. It is one of the oldest and most crucial unit operations. Crystallisation is a practical method of gaining a chemical substance that is concentrated. This concentrated chemical substance is in a form that is ...

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Riboflavin biosynthesis in Bacillus Subtilis

28 Nov 2017

8 (2,998 )

Motivation: Many important problems in cell biology require the dense nonlinear interactions between functional modules to be considered. The importance of computer simulation in understanding cellular processes is now widely accepted, and a variety of simulations algorithms useful for studying certain subsystems have been designed. 1 introduction Human and animal needs vitamins and minerals to help in the growth of the body and prevent disease, obtained ...

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A review of Bioactivation and Tissue Toxicity

28 Nov 2017

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  Kong Wei En (BP0711031415) Raymond Koh Chee How (BP0711031287) Jennie Lee Sheah Lin (BP0711031372) Prashanthini A/P Janardanan (BP0711031156) Hong Wei Siong (BP0711031194) Shalini A/P Shanmugavelu (BP0711031145) Introduction Xenobiotics are foreign chemicals in the body [1]. The human body has adapted processes collectively termed ...

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Effect of Voltage on the Rate of Electroplating a Metal

28 Nov 2017

5 (1,727 )

Akinlabi Boluwarinde Oluwatosin BACKGROUND Electroplating is the process of plating one metal onto another by hydrolysis, most commonly for decorative purposes or to prevent corrosion of a metal. There are also specific types of electroplating such as copper plating, silver plating, and chromium plating. Electroplating allows manufacturers to use inexpensive metals such as steel or zinc for the majority of the product and then ...

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Di (2-Ethylhexyl) Phthalate (DEHP) Hormone Levels in Males

28 Nov 2017

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Introduction Di (2-ethylhexyl) phthalate (DEHP) is one of phthalate ester and endocrine- disrupting chemical. It is used as plasticizer in Polyvinyl chloride (PVC) plastics tubing to make PVC plastic tubing more soft and flexible. Animal data show that target organs of exposure to DEHP are the liver, kidneys, lungs, and reproductive system. DEHP may cause adverse effects of animal’s reproductive system such as reduced fertility, decreased ...

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Identification of Plant Material: Corallocarpus Epigaeus L

28 Nov 2017

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6. MATERIALS AND METHODS 6.1 Collection The plant material was collected from the Tirupati, Andhra pradesh, India in the month of February 2014. The plant taxonomical authenticated by Prof; Dr. K. Madhava chetty, Department of Botany, SV University, Tirupati. The voucher specimen of Corallocarpus epigaeus L has been preserved in our laboratory for further collection and reference. Chemicals Various reagents like Mayer’s reagent, Wagner’s reagent, Hager’s ...

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Estimation of Tranexamic Acid Andethamsylate Using RP-HPLC

28 Nov 2017

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Chapter-3 Experimental work 3. EXPERIMENTAL WORK 3.1 MATERIALS AND METHODS Table 2. List of Chemical and standers used S.No Chemicals Manufacturer Name Grade 1 Water Processed in Bright Labs HPLC grade 2 Acetonitrile Fisher scientific HPLC ...

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Synthesis and Optical Characteristics of AgO Thin Films

28 Nov 2017

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Synthesis and Optical Characteristics of AgO thin films Fabricated by Chemical Bath Deposition Method 1EZENWA I. A., 2OBIAGAUZO P. O. 3EBEH L. N. ABSTRACT Binary thin films of silver oxide using chemical Bath method (CBD) have been grown and characterized. Absorbance spectral data of the films were obtained using a Shimadzu 1800 UV- VIS spectrophotometer. An Olympus optical microscope at 100X magnification was used to ...

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Identification of Prednisolone Acetate

28 Nov 2017

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IDENTIFICATION AND CHARACTERIZATION OF DRUG The procured prednisolone acetate was identified and characterized based on the following parameters. ORGANOLEPTIC PROPERTIES For the selected samples (drug + excipients) the following organoleptic properties were studied using descriptive terminology. Those were nature, odour and colour PARTITIONING BEHAVIOR OF PA IN DISTINCT LIPIDS: The percent partition coefficient of Prednisolone acetate in selected lipids was analyzed as ...

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Development of Dental Adhesive

28 Nov 2017

3 (1,099 )

Dr. Muhammad Zakir, PhD Student Faculty of Dentistry Introduction Dental adhesive are considered as an important products in dentistry not only to provide a good adhesion between dental materials and the tooth structure but also for a good bonding between dental prosthesis and resin cements. The presence of a good dental adhesive between the two dissimilar surface not only increases the longevity of the ...

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PKR-eIF2α Signaling Mediated Spatial Memory Impairment

28 Nov 2017

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SUPPLEMENTARY MATERIAL Activated PKR-eIF2α signaling mediated spatial memory impairment, tau phosphorylation, Aβ pathology, oxidative stress, selectively synaptic protein loss in mice caused by low levels of Cu Mouse behavior analysis. Morris water maze test: MWM was performed as previously described (PMID:23402899) with minor modifications and the test was performed double blinded according to the standard operation protocol. The MWM consisted of a circular pool (120 cm ...

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The Chemistry of Swimming Pools

23 Mar 2015 11 Oct 2017

7 (2,604 )

Keywords: swimming pool buffer chemistry Pool chemistry is the application of chemistry to maintain safe and clean water (Hann, 1997). This is achieved by regulating numerous factors which include: the pH, the quantity of disinfectant and the buffers used to resist pH changes. The normal pH range of a swimming pool needs to be between 7.2 and 8.0, although a range between 7.2 and 7.8 is more ...

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Techniques for Evaluation of Evidences in Forensic Casework

03 Oct 2016 26 Sep 2017

10 (3,701 )

Modern Techniques Used For the Evaluation of Evidences Collected In Forensic Casework: A Review Abstract In the modern era, many technological developments have been made in the field of science as well as forensic science which stand powerful and strong to overcome the issues involved in forensic casework. In this review, three emerging techniques have been discussed that proved helpful for the forensic analysis. One of ...

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Heavy Metal Analysis on Babylonia Areolata

03 Oct 2016 26 Sep 2017

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Heavy Metal Analysis on Babylonia areolata CONTENTS PAGES 1.0 INTRODUCTION 1.1 Background of study 1.2 Problem statements 1.3 Objectives of study 1.4 Hypothesis 1.5 Scope of study 1.6 Significant of study 2.0 LITERATURE REVIEW 3.0 MATERIALS AND METHODS 3.1 Study area 3.2 Research instrument 3.3 Sampling and sampling material 3.4 Research procedure EXPECTED RESULTS 5.0 GANTT CHART 6.0 REFERENCES CHAPTER 1 INTRODUCTION BACKGROUND OF ...

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Lipase Catalysed Synthesis of Bio-based Reactive Polyester

03 Oct 2016 26 Sep 2017

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TITLE OF THE RESEARCH PAPER: Green polymer chemistry: lipase catalysed synthesis of bio-based reactive polyester employing itaconic anhydride as renewable monomer. JOURNAL: Polymer Journal (2014) 46, 2–13 INTRODUCTION SUMMARY This paper is about the lipase catalysed synthesis of reactive polyester. In this synthesis lipase used as natural catalyst. The synthesis of reactive polyester was done by ring opening addition condensation polymerization (ROACP) ...

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Oxidation States of Tin. Preparation of Tin (IV) Iodide

16 Aug 2017 18 Aug 2017

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The Oxidation States of Tin. Preparation of Tin (IV) iodide and Tin (II) iodide.  Introduction: Alfred Werner, a Swedish chemist, determined the octahedral coordination of Werner complexes and gave rise to the field of coordination chemistry. The complexes contained a central transition metal bonded surrounded by a number of negatively or positively charged molecules. The coordination of the structures where unknown until Werner discovered the ...

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Graphene Oxide (GO) as Antimicrobial Property

16 Aug 2017 18 Aug 2017

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Over the past several years scientists have studied graphene materials (graphene, graphene oxide and reduced graphene oxide) for its antimicrobial properties and its future application in the biomedical field. To date, the exact mechanism for why graphene and its derivatives have antibacterial properties has not been fully understood due to experimental design variables. Scientists have agreed that oxidative stress, phospholipid extraction, and nanoknives all play ...

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Novel Dihydroquinoline Derivatives Facile Synthesis

16 Aug 2017 18 Aug 2017

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Facile synthesis of novel dihydroquinoline-3,3-dicarbonitriles in the presence of glacial aceticacid as catalyst under solvent-free conditions Masoud Nasr-Esfahani* and Elham Kanaani Department of Chemistry, Yasouj University, Yasouj, Iran Abstract A series of novel dihydroquinoline derivatives were synthesized using malononitrile, 2-aminobenzoic acid and benzaldehydes in the presence of a catalytic amount of acetic acid, without the use of any additional co-catalyst, under solvent-free conditions. The reaction ...

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Microwave-assisted Extraction Technique for Oil Extraction

16 Aug 2017 18 Aug 2017

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Result and discussion Optimization by central composite design An experimental procedure based on the CCD was adopted for three independent variables (extraction time, irradiation power and moisture content), which resulted in 20 experimental runs. Table 1 shows the responses obtained in the CCD experiments and the overall design. The results indicated considerable variations in the extraction efficiency of essential oil and TQ amount. These variations ...

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Liquid Liquid Equilibrium of Pold (Ethylene Glycol)

16 Aug 2017 18 Aug 2017

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Liquid-Liquid Equilibrium of Poly (ethylene glycol) 1500 + di-Potassium Tartrate +Water at different pH (6.41, 7.74 and 9.05) Alireza Barani Chemical Engineering Department,Faculty of Engineering, Shomal University, Amol, PO Box 731, Iran Mohsen Pirdashti[1] Chemical Engineering Department,Faculty of Engineering, Shomal University, Amol, PO Box 731, Iran Abbas Ali Rostami Chemical Engineering Department,Faculty of Engineering, Shomal University, Amol, PO Box 731, Iran Abstract: Liquid - liquid ...

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Reaction Rate of Hydrochloric Concentration

16 Aug 2017 18 Aug 2017

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Hydrochloric Intensity The purpose of the experiment was to gather an understanding for the chemical reactions, depending on the concentration. The rate of reaction is the speed of the chemical reaction. This experiment was to justify if the concentration is high or low will it affect the chemical reaction. 'Hydrochloric acid constitutes the majority of gastric acid, the human digestive fluid. In a complex process ...

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Multifunctional Porous Organics Synthesis

16 Aug 2017 18 Aug 2017

19 (7,219 )

TITLE OF WORK The synthesis and characterisation of functionalized porous organics Abstract Lophine based radicals have been studied for many years due to their photochromic nature, recent literature has seen attempts to connect two radicals to carbon based backbones. In this report we will discuss attaching six lophine molecules to a single backbone which is ...

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Effect of Gold Nanoparticles on Bilharziasis

16 Aug 2017 18 Aug 2017

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Abstract Gold nanoparticles (AuNPs) gained a great attention in biomedical researches and become more applicable in nanomedicine in recent years because they have distinctive physicochemical properties. The current study was planned to assess the effect of the AuNPs with three doses levels on genes expressions, histology and oxidative stress status of Schistosoma mansoni infected mice liver. Inoculation of mice with 100 μl AuNPs at different ...

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Reactions of Copper and Percent Yield

16 Aug 2017 18 Aug 2017

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Purpose-The purpose of this experiment is to examine the chemistry of copper and with the concept of percent yield. /2 Procedure- CHEM16882, Applied Chemistry1 Laboratory Manual Experiment no.6 posted on slate/Sheridan college, Brampton (accessed on 20.feb.2017) (1). /2 Observations Create your own data table for quantitative data. The table must include all the measurements you recorded in the laboratory; it must have a table ...

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Mesoporous Silica Nanoparticle (MNS) Properties

16 Aug 2017 18 Aug 2017

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  INTRODUCTION 1.1 Background Study Large amount of solid remnant from agriculture industries waste can create disposal problem to environment such as generation of odour and can attract pests that can endangered human health. Due to this problem the application of this waste is widely explored to control the disposal problem. According to Norsuraya, Fazlena and Norshasyimi (2016), primary fuel source and additive in construction ...

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Carbon Mesoporous Material Hybrid Catalyst

16 Aug 2017 18 Aug 2017

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Facile and clean transformation for synthesizing secondary arylamines through one-pot reductive amination of aniline, using aldehyde catalyzed by the supported nickel and poly(vinyl sulfonic acid) on mesoporous carbon CMK-3 (Ni/PVSA/CMK-3) as a novel acid-metal bi-functional heterogeneous catalyst. Sodium borohydride was used as the source of hydrogen for the reduction of imine. The reaction was performed at room temperature, in a short reaction time, without any ...

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Effect of Buffers on pH Levels

16 Aug 2017 18 Aug 2017

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 Abstract A buffer is a solution that helps keep the pH of other solutions at a steady level with the addition of limited acids or bases. The purpose if this experiment was to figure out how to create an optimal buffer and to determine how effective buffers are at stabilizing the pH of different solutions. An optimal buffer was made after calculating the [H+] levels ...

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Polycystic Kidney Disease Causes and Treatment

16 Aug 2017 18 Aug 2017

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 Introduction: Polycystic kidney disease effects roughly 10 million people worldwide. Even though this disease is so prominent it lacks research in the field of therapeutics from biopharmaceutical companies as they invest their resources into fields which are seen to be more profitable i.e. cancer research. This lack of research is what enticed us to carry out our project on polycystic kidney disease. This project will ...

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Bio-based Polymers and Their Future Trends: Article Review

16 Aug 2017 18 Aug 2017

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The selected article, 'Current progress on bio-based polymers and their future trends'[1], provides insight into the present tendencies, technological advancements, and the prospective utilisation of bio-based polymers obtained with renewable means. A wide domain of bio-based polymers are analysed in this article specifically focusing on its production, its characteristics and its potential in commercialisation. The review also measures the subsequent challenges whilst introducing these polymers ...

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Limiting Reactant Effect on Lab

16 Aug 2017 18 Aug 2017

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The Limiting Reactant Lab ABSTRACT The purpose of is lab is to see how the limiting reactant effects the whole lab. To determine what the other limiting reactant was and how much of reactant was there. INTRODUCTION A[CS4] limiting reactant limits the reaction and controls the amount of product formed when balancing an equation and making calculations. When calculating a limiting reactant, two reactant masses ...

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Application of Carbon Nanotubes

02 Aug 2017 18 Aug 2017

5 (1,964 )

I will be examining and discussing carbon nanotubes and the application within industry, I will look at the History and manufacture of carbon nanotubes. I will Examine and discuss their chemical and physical properties and how these properties make them useful in a wide range of applications.   The history of carbon nanotubes is not entirely clear even for those in the science therefore giving ...

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Effect of Surface Area in an Experiment

02 Aug 2017 18 Aug 2017

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Title: The effect of surface area in an experiment. Chosen factor: effects of surface area Chosen experiment: Calcium carbonate and Hydrochloric acid (option 2) Questions: Will increasing the surface area of the calcium carbonate slow down the reaction rate? How do you increase the surface are of Calcium Carbonate? Will increasing the surface are of Calcium Carbonate speed up the reaction rate? Will the ...

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Synthesis of Ethano Strapped TB's

02 Aug 2017 18 Aug 2017

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Chapter 3 Synthesis of Ethano Strapped TB's. 3.2 Experimental Section 3.2.1 General procedure for the synthesis of ethano-strapped Tröger's base. The methano-strapped TrÓ§ger's base (4.24 mmol) and 1,2-dibromoethane (1.60 g, 8.48 mmol, 2.0 eq.) were dissolved in N,N-dimethylformamide (5 mL) and lithium carbonate (1.41 g, 19.08 mmol, 4.5 eq.) was added to the mixture which was stirred and heated at 110 °C for 3 days.  The mixture ...

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The History of Aluminum

02 Aug 2017 18 Aug 2017

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Aluminum is the thirteenth element on the periodic element and its in the thirteenth roll (Dynamic.) Aluminum was discovered by Hans Christian Oersted in 1825 in Denmark. Hans Christian Oersted born on August 14, 1777 in Langeland, Denmark. He became interested in Chemistry at age twelve while working at his father's pharmacy. Not only was Oersted the first to extract aluminum from rocks, but he ...

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Hazardous Chemical Materials

02 Aug 2017 18 Aug 2017

4 (1,377 )

Hazardous chemical defined as the whispering killers. Chemical materials evade our life. It is the substances of harmful on humans, animals and all things on the ground. Chemical Hazardous cause big harm on our heath. Chemical materials effects badly on our life. Many people death in resulting to these chemical materials. People must fare away about using chemical materials because of its damages and hazardous. Injection, ...

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Protein Purification Using Affinity Chromatography

02 Aug 2017 18 Aug 2017

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Protein Purification Using Affinity Chromatography ABSTRACT: The principle behind this lab experiment was to purify the His-tag protein RNase H by implementing a technique called affinity chromatography. This technique is unique in its purification technological apparatus because it allows the purification of a biomolecule in accordance to its individual chemical disposition. A mini-column is prepared ...

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Industrial Separation of a Mixture: Fractional Distillation

02 Aug 2017 18 Aug 2017

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  What sphere is the mixture found in? Crude oil also known as petroleum is an unrefined oil extracted manly to produce petrol, paraffin and diesel oil. The oil is comprised of hydrocarbons, a number of organic compounds and small pieces of metal. The formation of this liquid dates back to millions of years ago from ancient marine life. This substance is located in ...

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Decomposition of Hydrogen Peroxide Experiment

16 Aug 2017 18 Aug 2017

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A catalyst is a substance that makes a chemical reaction speed up or get faster. This can be things like the temperature, concentration, sold or even liquid, (bbc,2017). A catalyst essentially effects a chemical reaction, (bbc2017). For a chemical reaction to start the bonds must be broken for the reactants to fuse or react, (bbc,2017). To break the said bonds one needs energy, (gcse,2017). The ...

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Properties of Phagraphene via Hydrogenation and Fluorination

16 Aug 2017 18 Aug 2017

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Modulation of electronic and mechanical properties of phagraphene via hydrogenation and fluorination Donghai Wu ab, Shuaiwei Wang ab, Jinyun Yuanab* Baocheng Yang ab, Houyang Chenc* a Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou, Henan 450006, China b Henan provincial key laboratory of nanocomposite and application, Zhengzhou, Henan 450006, China c Department of Chemical and Biological Engineering, State University of New York ...

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L. Pisonis Nut Oil Extraction

16 Aug 2017 18 Aug 2017

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The search for new crops to provide vegetable oils for use in the industry and also for human consumption is growing increasingly over the past two decades. A rapid search on Web of Science„¢ platform present more than 19200 results related to "nuts", more than 7600 documents are related to "edible oils", and more than 22000 results associated with "vegetable oil". Additionally, the published items ...

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Heterocycles as Triazine Derivatives

16 Aug 2017 18 Aug 2017

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Heterocycles are ring with nitrogen practical called pyridine, pyrimidine, etc., carbon containg ring called benzene. There are so many compounds are which are belonging to heterocycles. One of them is triazine. Triazine is a six mambered heterocyclic ring system. It is similar to benzene ring system. Triazine has three isomers which single alternative. They are known as 1,2,3-triazine, 1,2,4-triazine and 1,3,5-triazine. Antimalerial and other diseases ...

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Cocaine Abuse Detection with Double Confirmation Technique

02 Aug 2017 17 Aug 2017

6 (2,358 )

Introduction Throughout history, natural and synthetic drugs have been used for many uses. The first drugs were based on natural sources [1] and it is common practice to isolate a drug from its natural sources before synthesis. Usage of these drugs is regulated by governmental organizations, in the U.S.A. the Food and Drug Organization achieves this goal, and any use that is not approved is ...

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Polysiloxanes Synthesis and Structure

02 Aug 2017 17 Aug 2017

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Abstract Silicones (polysiloxanes) are widely used inorganic polymers containing silicon atoms. This category includes many other kinds of polymers such as: polysilanes, polysilazanes, polycarbosilanes and polysiphenylenes [1]. In this project we will focus on polysiloxanes: synthesis and structure - properties relationships. First, a brief reference on the history of these materials will be made. Organosilicon compounds were synthesized for the first time in the 1860s, ...

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Synthesis and Characterization of Nylon-6,6 Polymer

02 Aug 2017 17 Aug 2017

6 (2,175 )

Abstract Synthesis and characterization of nylon-6,6 polymer was performed in this experiment. Nylon-6,6, was obtained from adipoyl chloride and 1,6-hexanediamine monomers, dissolved in cyclohexane and water. Employing interfacial polymerization technique, thin film of nylon product was formed and collected. The final product were white peaces of small fragile strings with a total mass of 0.0694 g and 4 cm in length. Infrared spectroscopy then characterized ...

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Diels-Alder Reactions Experiment

02 Aug 2017 17 Aug 2017

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Abstract A Diels Alder reaction was done during this experiment between anthracene and maleic anhydride via to yield 9, 10-dihydroanthracene-9, 10-α, β-succinic anhydride. Anthracene was the diene and maleic anhydride was the dienophile. Following recrystallization of the product using xylene and vacuum filtration, a percent yield of 39.9% was calculated for the recrystallized product that was collected. The yield may have been low due to ...

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Effect of the Inorganic Filler Contents on Polymer

02 Aug 2017 17 Aug 2017

18 (7,022 )

ANALYSIS OF ZIF 8/PAI AND CMS/PAI MEMBRANES FOR CO2/CH4 GAS SEPARATION Yohannan Subin Sabilon Department of Chemical Engineering, National Institute of Technology Tiruchirappalli, India Zeolitic Imidazolate Frameworks 8 (ZIF 8) nanocrystals and Carbon Molecular Sieves (CMS) particles were prepared by using standard procedures. UV visible spectroscopy and XRD tests were done for the confirmation of the particles prepared and scanning electron microscopy (SEM) and high ...

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History and Properties of Rubber

02 Aug 2017 17 Aug 2017

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History of Rubber Rubber was first discovered by the Indians living in Central and South America at around 1000 CE. The native people of the Americas used latex from the rubber trees (which they called it the cahuchu tree) and learned how to make waterproof clothes and footwears.1 They also used the latex to make bouncing balls for ball games.1 In 1736, a French explorer ...

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Ischaemic Pain and Cold-induced Pain Experiment

02 Aug 2017 17 Aug 2017

10 (3,986 )

Results Ice water seems to bring about 60% more pain than tourniquet. Placebo was quite effective against tourniquet (91.7%±4.33) and had no effect on ice water (100.7%±2.74) which appeared to be the second strongest drug. Paracetamol 1000mg combined with 8mg of codeine had negative effect on tourniquet (105.9%±7.91) as students sensed more pain after taking drugs, and slight effect on ice water (97.2%±3.17) which made ...

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Measuring Binding Constant of Ethidium Bromide (EtBr) to DNA

02 Aug 2017 17 Aug 2017

8 (3,001 )

ABSTRACT: The principle behind this lab experiment was to determine the binding constant of ethidium bromide to DNA using the known concentrations and the calculated value of X obtained from the equation. Ethidium bromide is said to have a high affinity to DNA, therefore, the expected value for the binding constant should be large. Two method were implemented in determining the binding constant ...

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Temperature change for CaCO3 and HCI

02 Aug 2017 17 Aug 2017

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Research questions: When the temperature is digressed, or increased will the CaCO3 and HCI have a faster reaction? What happens when the reaction is happening? What happens when Caco3 and HCI meet each other? Answers: When calcium carbonate is heated it first reacts to the acid then after a while it turns CaCO3 into calcium Hydroxide. Its formed when ions bonds react ...

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Chemical Formula of Zinc Oxide

02 Aug 2017 17 Aug 2017

3 (1,188 )

Purpose - The purpose of this lab experiment is to identify the simplest chemical formula of zinc chloride. Observations In this laboratory exercise you measured the mass of an evaporating dish, zinc and zinc chloride in the evaporating dish.  Make a table that shows the masses you measured in the lab.  The table must include a table number and title.  The title should reflect what ...

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Patient Advisory Board Internship

02 Aug 2017 17 Aug 2017

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Patient Advisory Board Internship at Zuckerberg San Francisco General Hospital For this cooperative education project I have chosen to write about my internship at Zuckerberg San Francisco General Hospital (ZSFGH). I was chosen for this internship from a pool of pre-medical student applicants based on my resume, letter of interest and in person interview. The work was advertised as needing someone to run the formal ...

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Synthesis and Purification of Nitrophenols

02 Aug 2017 17 Aug 2017

8 (3,101 )

Abstract Ortho and para-nitrophenol was synthesized using an electrophilic aromatic substitution of phenol and dilute nitric acid. Isolation of the crude product used a dichloromethane followed by a short vortex and sodium sulfate for water removal. Separation of the ortho and para products was completed using column chromatography to collect the eluent in ten vials; vials #1-5 collected o- and vials #6-10 collected p-nitrophenol. Thin ...

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Freezing Point Depression Osmometer

02 Aug 2017 17 Aug 2017

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1. Osmolality is a commonly used unit of measurement that represents the concentration of a solution as the total number of solutes per kilogram of pure solvent (mOsm/kg): where Ø is the osmotic coefficient accounting for the degree of molecular dissociation; n is the number of particles left after the molecule dissociates in solvent, where n = 1 for non-electrolytes; and C is the ...

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Recent Applications of Keratin

02 Aug 2017 17 Aug 2017

9 (3,460 )

  Abstract This review discusses the recent applications of keratin and keratin-based materials. Keratin-Based Materials The keratin-based materials are produced from keratin fibers, such as human hair, skin, hooves, feathers, beaks, feet and horns (18). For biomedical and pharmaceutical purposes, human hair is a preferred major source of keratin for several reasons. First, it is available readily from barber and ...

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Corrosion Resistance of Electrodeposited Coating

02 Aug 2017 17 Aug 2017

10 (3,872 )

Qiongyu Zhoua,b, Yadong Zhanga, Xiaofen Wanga, Hebing Wanga, Ping Oua* aSchool of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, PR China bInstitute of Applied Physics, Jiangxi Academy of Sciences, Shangfang Road 108, Nanchang, Jiangxi Province 330029, PR China Keywords: Ni-W alloy; Composite coating; Cr2O3nano-particles; Microhardness; Corrosion resistance 1. Introduction Mild steel is a most widely-used metal materials in engineering and ...

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Magnesium Ribbon and Hydrochloric Acid

02 Aug 2017 17 Aug 2017

4 (1,327 )

 Group members: Kiara Anderson, Laura Knott, Jackson Baker Chosen factors: magnesium (Mg) is known as a chemical element with the atomic number of 12. Hydrochloric acid (HCL) is a strong, colorless mineral acid used with many purposes. Chosen experiment: The task is to alter and record the different temperatures when magnesium ribbon is places hydrochloric acid. Research questions: How will the magnesium ribbon react ...

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Magic Methyl Effect: Transition Metal Catalyzed

02 Aug 2017 17 Aug 2017

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The insertion of a methyl group, the smallest alkyl group, into a C-H bond has been shown to enhance such pharmacological charactistics as bioavailability and potency.1 Traditionally, incorporation of a methyl group into a bioactive compound has required lengthy de novo synthesis. Consequently, synthetic reactions that allow late-stage installation of methyl groups into advanced intermediates are of great potential value in the pharmaceutical industry. In ...

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Re-Crystallization of Boric Acid

02 Aug 2017 17 Aug 2017

3 (924 )

  The purpose to conduct this lab is recrystallization of solid and then identify the effect on solids purity and yield. Part A: Reactions Table 1. quantitative and qualitative observations of reactions to form boric acid. Mass of borax (g) 10.0558g Appearance of borax White powder Time for solubility ...

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High Reflective Multilayer Film/Foam

02 Aug 2017 17 Aug 2017

7 (2,676 )

Abstract This work focus on the application of PP/PP film/foam on the reflector. We studied the properties of one mainstream commercial reflector. We try to improve the reflectance and other properties of PP/PP film/foam for other application by lamination and adding inorganic additive. Our result shows that we do improve the reflectance of the as-extruded sample and it is comparable to commercial sample somehow. 1.Introduction ...

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Determination of Protein Concentration Experiment

02 Aug 2017 17 Aug 2017

6 (2,288 )

ABSTRACT: The objective of this experiment is to determine the concentrations of RNase H which was purified in the previous lab experiment and of an unknown solution, which was administered by the TA. A Bradford reagent was utilized to determine the total concentration which binds to the protein. The samples were placed in a spectrophotometer and the absorbance was recorded for each sample. ...

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Periodic Table Trend Anomalies

02 Aug 2017 17 Aug 2017

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Abstract: Atomic radius is the physical size of an atom while ionization energy is the energy required to completely pull one electron away from an atom. When it comes to the periodic table, there are accepted periodic trends for both atomic radius and ionization energy. However, there are some instances in which certain elements do not follow the predetermined periodic trends. These are areas in ...

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Identification of Unknown Compound using 13C NMR

02 Aug 2017 17 Aug 2017

4 (1,340 )

Identification of Unknown Compound #15 using 13C NMR and IR Spectra Paired with Melting Point Analysis Abstract Given an unknown compound, infrared (IR) spectroscopy can be used to determine the functional groups that make up the compound. This can be supplemented with 13C NMR spectroscopy and melting point analysis to determine the identity of the unknown compound. After completion of the analysis methods, it was ...

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Apoptosis And Inhibitor of apoptosis proteins Family: A

02 Aug 2017 17 Aug 2017

7 (2,760 )

 Background Apoptosis is an orchestrated biological cellular process that occurs in physiological and pathological conditions(1). It is essential for regulating development, homeostasis, and immune-system function in organisms(2). In mammalian cells, apoptosis is mediated by a family of cysteine proteases named caspases which are initially expressed in cells as inactive procaspase precursors and are activated by two pathways, the extrinsic ( or death receptor) and intrinsic ...

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Human African Trypanosomiasis Treatment

02 Aug 2017 17 Aug 2017

16 (6,206 )

THE synthesis of novel hydrazone compounds to determine the potential anti-parasitic properties and efficacy in the treatment of Human African Trypanosomiasis. ABSTRACT Human African Trypanosomiasis is caused by two sub-species of trypanosome, Trypanosoma brucei gambiense and Trypanosoma brucei rhodeisense. The protozoan parasite has complex mechanisms to evade immune destruction and hence survives in the host, leading to ...

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Carbon Membranes from Polyamideimide and Polyetherimide

02 Aug 2017 17 Aug 2017

11 (4,032 )

CARBON MEMBRANES FROM POLYAMIDEIMIDE AND POLYETHERIMIDE FOR NITROGEN AND METHANE SEPARATION AND ITS PARAMETER STUDY ABSTRACT Carbon membranes prepared from polyamideimide and polyetherimide were studied to find out the effects of different parameters on membrane characteristics. Their properties were analyzed to understand its scope in methane purification. Different compositions were tried to find out the optimum polymer composition as well as the optimum blend composition. ...

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Unknown Ionic Compound Preliminary Lab

02 Aug 2017 17 Aug 2017

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Discussion of Results and Scientific Explanation The main goal was to identify the unknown compound, which was MgCl2, better known as Magnesium Chloride. Before knowing what the unknown was, we had several test that needed to be done in order to determine the unknown compound. To find the identity of the compound we did various experiments for example, we observed the physical properties, tested the ...

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Modification of the 4-Quinolone Scaffold

02 Aug 2017 17 Aug 2017

14 (5,538 )

  Discovery: Quinolones are antibacterial agents that are of major importance in the antibacterial field as the can act as the model antibiotic. This is due to their broad range of activity, the high potency and good bioavailability with both intravenous and oral administration possible. This is coupled with high serum levels and a distribution within tissues that specifies concentration levels and results in, theoretically, ...

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An Overview of Butadiene

02 Aug 2017 17 Aug 2017

8 (3,049 )

1,3 Butadiene 1,3-Butadiene with its molecular structure of [email protected]=CH2 have widely synonym as butadiene,","-butadiene, divinyl, buta-1,3-diene, vinylethylene, vinylethylene, bivinyl, erythrene, biethylene, and pyrrolylene refer to the same physical and chemical properties. It has same Chemical Abstracts Service (CAS) registry number which is 106-99-0, and its Registry of Toxic Effects of Chemical Substances (RTECS) number is EI9275000. As compared to the air, the conversation factor of ...

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Iodometric Redox Titration of Vitamin C Tablets

16 Aug 2017

14 (5,330 )

Introduction Vitamin C is a vital component of a healthy diet which is why, like many others, my father takes vitamin C supplements. However, I noticed that the vitamin C tablets he takes expired in January 2009. These tablets were bought in the USA and developed a light amber tint. Therefore, I wondered whether this would mean that over time, the concentration of vitamin C ...

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Novel Eu3+-doped Garnet-tpye Tellurate Red-emitting Phosphor

16 Aug 2017

10 (3,762 )

A novel Eu3+-doped garnet-tpye tellurate red-emitting phosphor with high thermal stability and color purity Introduction The garnet-related family Li3Ln3Te2O12(Ln=Y, Pr, Nd, Sm-Lu) have been extensively studied as promising solid electrolytes for application in solid state rechargeable lithium-ion batteries for the last few decades [1-4]. In 2006, O'Callaghan et al. developed garnet-type Li3Ln3Te2O12 (Ln = Y, Pr, Nd, Sm-Lu) to investigate the relationship between ...

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Optimization of Distillation Column Experiment

16 Aug 2017

17 (6,508 )

Optimization of distillation column in terms of energy consumption and CO2 emission Sina Radfar[1]* * Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran Abstract The distillation is one of the energy consuming process in world's process industry. Therefore, there must be approach for optimal use of energy and reduction of harmful gas emission such as CO2. The Aspen Plus "Column Targeting Tool ...

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Experiment: Diffusion Coefficient of NaCl in water

16 Aug 2017

8 (2,850 )

Introduction The purpose of this experiment is to determine the diffusion coefficient of NaCl in distilled water. Diffusion is an important property of many materials. Its importance is more significant than ever, where the transfer and distribution of materials is involved and quantitative values are needed to be determined. Results Measurement taken every 30 seconds, conductivity @ time 0 = 0.294mS ...

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Fischer Esterification of Isopentyl Acetate

16 Aug 2017

4 (1,467 )

  Brendaliz Bonilla Chemistry Department Susquehanna University   Abstract Esters are prepared in many ways and one of which is through Fischer Esterification. Using this method, esters are produced by refluxing a carboxylic acid and an alcohol in the presence of a concentrated acid catalyst.1 The purpose of reflux is to heat a reaction mixture at its boiling temperature to form products, without losing any ...

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Analytical Techniques for DNA Extraction

02 Aug 2017

8 (2,901 )

Development of DNA sensors for highly sensitive detection of sequence specific DNA has become crucial due to their extensive applications in clinical diagnosis, pathogen detection, gene expression studies, and environmental monitoring.ref Along with complementary base-pair hybridization between long oligonucleotide for DNA detection, several DNA sensors employ short oligonucleotide (≤10 base pair) to this goal. Ref Easley and co-workers constructed the electrochemical proximity assay (ECPA) for ...

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Nitration of Acetanilide and Methyl Benzoate

02 Aug 2017

5 (1,645 )

Nitration of Acetanilide and Methyl Benzoate by Electrophilic Aromatic Substitution   Abstract The purpose of this experiment was to synthesize methyl nitro benzoate from methyl benzoate, as well as nitroacetanilide from concentrated nitric acid (HNO3), and concentrated sulfuric acid (H2SO4) by using an electrophilic aromatic substitution reaction. The HNO3 and H2SO4 were combined to form a nitrating solution, which was added to a mixture of ...

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X-ray Crystallography Technique Analysis

02 Aug 2017

6 (2,398 )

1 Limitations of x-ray crystallography From the first crystalline structure determination of table salt in 1914; whose structure elucidation proved the existence of ionic compounds (6), single crystal x-ray diffraction (SC-XRD) has been widening our view of the hidden world of molecular structures. Today, SC-XRD continues to be the only structural analysis method that offers direct structural information at the atomic level. As such, this ...

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Edoxaban for Stroke Prevention

02 Aug 2017

7 (2,411 )

1. Indication (86words) Edoxaban, a drug part of the direct factor Xa group is licensed on two indications. The first indication, treatment of pulmonary embolism (PE) and deep vein thrombosis (DVT). (1). Treatment is only conducted following the use of parenteral anticoagulants on a minimum 5-day course. Second, prevention of systemic embolism (SE) and stroke in nonvalvular atrial fibrillation (NVAF). Treatment conducted in line with ...

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Photocatalytic Activity Investigation

02 Aug 2017

3 (840 )

The photocatalytic activity of the modified samples was investigated by the determination of the remaining concentration of the nominated pollutant, acetaldehyde, over various time intervals. Figures. 5 and 6 show the photodecomposition activity of different modified TiOâ‚‚ nanoparticles under 8w visible light irradiation in the continuous flow reactor with a flow rate of 95 ml/min. According to Figures. 5 and 6, all the modified samples ...

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Photovoltaics in the Energy Industry and Nanotechnology

02 Aug 2017

4 (1,332 )

Nanotechnology The field of nanotechnology dates back to the late 1950's when theoretical physicist Richard Feynman gave his famous talk called "There's Plenty of Room at the Bottom". In his talk, he introduced the concept of the control and manipulation of objects i.e. atoms, molecules, at a minute scale. It was K. Eric Drexler who popularised the term nanotechnology after using it in the title ...

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N-myristoylation: An Overview

02 Aug 2017

7 (2,714 )

N-myristoylation Protein N-myristoylation is the covalent attachment of myristate, a 14-carbon fatty acid, onto the N-terminal glycine residues of protein substrates. It is transferred co- or post-translationally to a subset of proteins from a thioester form, myristoyl-CoA, catalyzed by N-myristoyl transferases (NMTs). (insert genes expressing nmt1 and nmt2, NMT recognizes a general consensus sequence for myristoylation (Gly-X-X-X-(Ser/Thr/Cys)) containing a N-terminal glycine, 3 other amino acids ...

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