unique optical‚ physical‚ electrical and medicinal properties. In this study‚ silver nanoparticles were synthesized by biophysical method. Silver nanoparticles were characterized using UV-Visible absorption spectroscopy (Surface Plasmon absorption at 418-420 nm)‚ Energy Dispersive Spectroscopy (EDX)‚ Scanning Electron Microscopy (SEM) and X- ray diffraction (XRD). The cytotoxic effect of silver nanoparticles on acute myeloid leukemia cell line (THP – 1 cell line) was studied in vitro. The activity
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a one-pot synthesis. The process of synthesis involved the use of butyl amine‚ carbon(IV) sulfide and sodium hydroxide at a temperature < 0oC. Crystals were obtained and the compound was characterized with elemental analysis‚ Fourier infra-red spectroscopy (FT-IR)‚ Ultra-violet visible (UV-VIS)
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prepared in different fluids i.e. PBS (pH 7.4) and methanol. The R2 values are 0.9987‚ 0.9983 and a straight line was obtained in both the cases in the range of 2-20g/ml. This confirms that the Beer-Lambert’s law was followed in the used range in UV Spectroscopy (Fig. 4.4 and
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change their job in this quarter they are entitled to enter into appraisal cycle with their new employer also. So they are not going to loose anything with job change‚" he added. Another HR consultant Ripples Consultancy Services CEO and MD Rishi Raman said. "We would see a high attrition rate of 30-31 per cent in the first quarter of the current fiscal. The reason behind such attrition is many employees are not satisfied with their appraisals. "A good performer did not expect 10-15 per cent
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Andrews‚ and C. V. Raman et al. used to stay with the Sarabhai family when they visited Ahmedabad. Mahatma Gandhi also once stayed at their house while recovering from an illness. Visits by such great men greatly influenced Vikram Sarabhai. After his matriculation‚ Vikram Sarabhai proceeded to Cambridge for his college education and took the tripods degree from St. John’s College in 1940. When World War II began‚ he returned home and joined as a research scholar under Sir C. V. Raman at the Indian
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(1995) - They track variations in the star’s spectrum (51 Pegasi) - Conclude that there is a companion orbiting the star • Min mass: 0.5 Mj (1mj= mass of Jupiter) • Orbiting at: 0.05 AU (1AU= distance from earth to sun) 3. Methods o Doppler Spectroscopy - Just like the star causes a planet to move in an orbit around it‚ the planet causes its host star to move - If a star is being orbited by a planet‚ the radial velocity of the star changes as it moves towards and away from the observer. - This
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the disc. The second largest application is fiber-optic communication. Other common applications of lasers are bar code readers‚ laser printers and laser pointers. In science‚ lasers are used for many applications. One of the more common is laser spectroscopy‚ which typically takes advantage of the laser’s well-defined
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1-propanol and 2-pentanol with NaBr in H2SO4‚ in which the H2O acts as the leaving group and Br as the attaching nucleophile (1). After the reaction has taken place through reflux and distillation‚ the product is able to be examined through NMR and IR spectroscopy analysis. Finally‚ these graphs will help in determining the products of each reaction and the type of mechanism used. SN1: SN2: Mechanism of 1-propanol: Mechanism of 2-pentanol: Table of Reagents Compound | Molecular Weight |
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Matt Cramer Alex Chen 2/7/17 Food Dye lab Spectroscopy of Food Dye Lab Introduction You’re coming off the field after a hard fought game against your rival team. You are needing a drink and you grab a blue Powerade off the managers table. The drink delivers the electrolytes needed to sustain throughout the rest of the day. Then‚ the athlete starts to think how much of his blue Powerade is actually made from the blue food dye. The food dyes have had a tremendous affect on global economics
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1.4 Formulation-related contaminations A few contaminations in a medication item or API can emerge from communications with excipients used to plan the medication item. During the time spent definition‚ a medication substance is subjected to different conditions that can prompt its debasement or different pernicious responses. For instance‚ if warmth is utilized for drying or for different reasons‚ it can encourage debasement of thermally labile medication substances. Arrangements and suspensions
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