SYNTHESIS OF SILVER NANOPARTICLES AND ITS CYTOTOXIC EFFECT AGAINST THP-1 CANCER CELL LINE 1 * Department of Biotechnology‚ Modern College‚ Shivajinagar‚ University of Pune‚ Pune‚ India. Mrs Rebecca Thombre email rebecca.thombre@gmail.com Telephone 9822224957 020 400966725 ABSTRACT: Nanotechnology is a field of science which involves the synthesis and applications of nanoparticles. Silver nanoparticles (AgNp) have applications in various fields due to their unique
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development of silver from the mid-sixteenth century to the eighteenth century caused social and economic changes by making the wealth of countries such as Spain and Japan increase‚ which increased economic opportunities within their trade partners‚ while also creating a social division in their own countries with the heavy use of slavery. Due to the findings of silver at Potosi in 1545‚ trade in Europe flourished and slaves played a more vital role in the search for Silver. Before silver was discovered
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Ap Chem. Period 7 9/14/2014 Analysis of Silver in an Alloy Purpose- To determine silver content of an alloy and to calculate the percent silver in the alloy. Materials Chemicals •Silver-Copper Alloy •Nitric Acid (NHO3) •Baking Soda (NaHCO3)(s) •Sodium Chloride (NaCl)(s) Equipment •Beakers‚ 100 and 250 mL •Filter Flask and Walter’s adapter •Stirring Rod •Wash Bottle •Watch Glass •Crucible Tongs •Ring Stand‚ Ring‚ Wire gauze •Bunsen Burner •Graduated Cylinder •Rubber or Plastic
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Arsh Shah Mrs. Murphy Honors English 1 March 24‚ 2011 Analytic Essay on “Silver” From similes to rhyme scheme Walter de la Mare shows what a beautiful evening is really like in this poem.The lyrical poem‚ “Silver”‚ by Walter de la Mare‚ enhances the imagery by repeating the word ‘silver’ to illustrate how the moon shines on everything by using similes and sensory language to describe a beautiful serene evening. Reading this poem the author will draw a great picture of a serene and calm evening
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Analysis of Silver in an Alloy Quinn Kelly Kevin Hoover 9/12/12 PURPOSE The purpose of this lab was to analyze the amount of silver in an alloy using quantitative and qualitative observations. PROCEDURE 1. Prepare the Funnel and Filter Paper • Place the filter paper in the Buchner funnel‚ turn the water on and wet the filter paper with the acid wash. 2. Find the Mass
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Test tube C did not mix well with the silver nitrate. The Iodine stayed at the bottom while the silver nitrate collected at the top. Test tube D did absolutely nothing‚ but get a little cloudy 5. Conclusion: The purpose of this lab was to see how silver nitrate affects the reactive Halogens and to see if it formed a precipitate. Most results were the same where a precipitate formed. Some took longer than others to form where as others had no effect to the silver nitrate. Two ways to improve the lab
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When you mix copper‚ silver‚ and nitrate together‚ you will end up with silver nitrate solution will turn blue (it has become copper nitrate). On the piece of copper‚ there would be a coating of solid silver. If a chemical reaction is going to be observed when chemicals are mixed‚ heated or any other means of altering the substance‚ then we will be able to predict the products formed. If it is observed that in the original versus the changed substance no new substances are formed‚ the change is reversible
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Porter’s 5 Forces for Li Ning | Li Ning | | | H for high force‚ L for low force | Match | Intensity of Competitive Rivalry | Number of competitors | H | 1 | | Industry growth rate | H | 0 | | Fixed costs (generally low in IT) | H | 1 | | Storage costs (generally low in IT) | H | 1 | | Product differentiation | H | 0 | | Switching costs | l | 1 | | Exit barriers | H | 1 | | Strategic stakes | H |
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China. Enormous quantities of opium made their way to China‚ swelled by the number of merchants involved. By the 1820s‚ the value of opium coming into China exceeded the value of goods exported out. Thus‚ the Chinese had to pay silver in addition to their goods to get opium. Silver shortages began to hurt peasants. To stop the trade‚ the Qing emperor sent a special commissioner‚ Lin Zexu‚ who froze all legitimate trade in Canton until foreign merchants handed over their opium stores. The opium traders
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Silver is a very ductile and malleable metal used for thousands of years utensils‚ for trade‚ and as the basis for many monetary systems. Its value as a precious metal was long considered second only to gold. In Ancient Egypt and Medieval Europe‚ it was often more valuable than gold. Silver is currently about 1/50th the price of gold by mass‚ and 70 times more valuable than copper. Silver did once trade at 1/6th to 1/12th the price of gold‚ however‚ the discovery of great silver deposits in the
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