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External link to Interactions of TiO2 Nanoparticles With Carotenoids
Chemistry

Interactions of TiO2 Nanoparticles With Carotenoids

Role of TiO2 semiconductor nanoparticles on photodegradation of carotenoids: stability of carotenoids in solution. D.D.D.H Alwis, U.G. Chandrika, P.M. Jayaweera   Abstract: Introduction Carotenoid (Car) molecules as a sensitizer in Dye-sensitized solar cells (DSSC) with optimum photo conversion efficiency have recently been widely investigated by several researchers1-3. Car are one of the most widespread naturally occurring pigments which are of great interest due to their […]

External link to Proteins Therapy for Drug Discovery
Chemistry

Proteins Therapy for Drug Discovery

Proteins are most dynamic and diverse macromolecules in our body, thus numerous functionally distinct proteins hold enormous promise for the development of new therapeutics for a variety of human ailments which contain mutated or other abnormal proteins, or those in an abnormally high or low concentration. However, the clinical application of protein therapeutics is still in its infancy since the poor physicochemical stability of proteins […]

External link to C-H Bending Vibrations of Benzene Rings
Chemistry

C-H Bending Vibrations of Benzene Rings

Vibrational analysis or IR spectrum or Vibrational assignment or Analysis of vibrational spectra: C-H vibrations The C-H stretching vibration present in the hetero aromatic structure lies in the characteristic region 3100-3000cm-1, in which the bands are not affected noticeably by the nature of substituent’s. All the C-H stretching vibrations are weak in intensity. In our case the C-H stretching vibrations were observed at 3083, 3063, […]

External link to AC Voltammetry: Principles, Advantages and Disadvantages
Chemistry

AC Voltammetry: Principles, Advantages and Disadvantages

  Name TEH YU JIE (K) NOOR HASIRA BINTI SAMSUDIN NUR NADIAH BINTI ABU BAKAR NUR NIQMAH BINTI MUSA NUR SYAHIRAH BINTI KHAIRUDDIN KHANG EE WEN INTRODUCTION Nobel Prize winning chemist Jaroslav Heyrovský facilitated voltammetry by the discovery of polarography by in the year of 1922. Alternative current voltammetry was invented in 1950s and developed intensively by D.E Smith. Alternative current (AC) voltammetry is an […]

External link to Mauveine: History, Properties and Structure
Chemistry

Mauveine: History, Properties and Structure

Introduction One of the most important events of 1856 was the discovery of the first successful artificial dye, mauveine (aniline purple, mauve dye, Tyrian purple) by William Perkin. The discovery of mauveine led to rapidly growth of fashion trend and discovery of new synthetic dyes. Nowadays there are more than three million dyes (WordPress.com). Most dyes used back in the XIX century were derived from […]

External link to Optically Active Polymers
Chemistry

Optically Active Polymers

Introduction Optically active polymers are related to problems of the charged and reactive polymers, since optical activity is an inherent property of both natural macromolecules as well as a great variety of polymers synthesized. Most of the naturally occurring molecules/macromolecules, such as nucleic acids, proteins, and polysaccharides are chiral and optically active. Chirality is essential for life. This situation can be very obviously seen if we […]

External link to Biosensors Development for Hydrogen Peroxide Detection
Chemistry

Biosensors Development for Hydrogen Peroxide Detection

An approach towards clinical diagnosis. 1. Introduction: The molecular oxygen is the basic source of energy for aerobic systems. Its consumption by the living systems produces the radical such as superoxide anion (O2–). This is a highly reactive toxic radical and is implicated in numerous pathologies. The toxicity of the triplet oxygen is prevented by the involvement of enzymes. A real paradox is that hydrogen […]

External link to Desulfurization Simulated Gasoil
Chemistry

Desulfurization Simulated Gasoil

Desulfurization Simulated Gasoil by Polyoxometalate/H2O2/Ionic Liquid System Arouna Dolo, Yu-Hui Luo, Wen-Wen Ma, Xin-Xin Lu, Yan Xu, Kaiwen Ma, Nah Traoré, Hong Zhang   Abstract The Keggin-type catalysts (Q)3+nPW12-nVnO40 (n= 1-3) were synthesized by ionic exchange for oil extraction/catalytic oxidation desulfurization (ECODS) of DBT, BT and 4,6-DMDBT. The samples were characterized by Fourier Transform Infrared (FT-IR) spectra analysis, thermogravimetric analysis (TGA) and Ultraviolet-visible (UV-vis) absorption […]

External link to Determining Avogadro’s Constant and Faraday’s Constant
Chemistry

Determining Avogadro’s Constant and Faraday’s Constant

List of Apparatus Name of Apparatus Quantity Uncertainty Electronic Stopwatch 1 ±0.2s Ammeter 1 ±0.01A Wires with crocodile clips 1 – D.C power source 1 ±0.01V 300cm3 Beaker 3 – Copper strips 2 – Sand paper 1 – Graphite rod 2 – pH probe/data-logger 1 ±0.2 Electronic weighing balance 1 ±0.001 DATA COLLECTION: The electrolytic cell used in this investigation is illustrated in Fig 1: […]

External link to Silicon Carbide: Structure, Uses and History
Chemistry

Silicon Carbide: Structure, Uses and History

2.1 Silicon Carbide 2.1.1 Historic Overview Silicon carbide as a material that precedes our solar system, travelling through interstellar space for billions of years, generated inside the fiery nuclear hearts of carbon rich red giant stars and in the remnants of supernovae (Davis, 2011). As a synthesized material it was first discovered by the Swedish scientist Jöns Jacob Berzelius in 1824 during his pursuit to […]

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