nanoparticles have unique properties which help in molecular diagnostics‚ in therapies‚ as well as in devices that are used in several medical procedures. The major methods used for silver nanoparticle synthesis are the physical and chemical methods. The problem with the chemical and physical methods is that the synthesis is expensive and can also have toxic substances absorbed onto them. To overcome this‚ the biological method provides a feasible alternative. The major biological systems involved in this are
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The leaves‚ bark and fruit of the T. conophorum have been reported to treat a number of diseases including giddiness‚ toothache‚ eczema‚ pruritus‚ psoriasis‚ common cold‚ prostate cancer and male infertility [8]. However‚ the fact that an herbal preparation is of natural origin does not necessarily make it safe. The active ingredients of plant extracts are chemicals like those of synthetic or purified drugs. In low amounts‚ they may be ineffective‚ while in the right amounts‚ they may prove beneficial
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there is a presence of salicylic acid or starch as a binder‚ left in the product‚ two reactions can be set up. Ferric chloride can be used to test the product for a presence of salicylic acid. If salicylic acid is present‚ a red-violet color will appear in the mixture. This is because the phenolic group on salicylic acid forms a colored iron complex when reacted with ferric chloride. Iodine can be used to test the product for a presence of starch; this can be indicated by the solution turning a deep
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of the gel electrophoresis‚ both Madi and me are homozygous positive (+/+) for the Alu gene. This can be determined by looking at the ladder and comparing our sample to it‚ to find out if we are homozygous or heterozygous. Discussion For this lab‚ DNA from our cheek cells were separated through PCR‚ and singled out through gel electrophoresis. The process of the PCR is complex and contains different components and reactions. The first main step of PCR is denaturing. The temperature at which
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Lab 3: Grignard Synthesis Objective: The goal of this lab is to synthesize a Grignard reagent from bromobenzene and magnesium metal in diethyl ether. This same Grignard reagent would then be used to prepare a tertiary alcohol and then purify and characterize the product. Table of Reagents: Name Chemical formula Melting Point Boiling Point Density Safety Hazards Diethyl ether C4H10O -116.3°C 34.6°C 0.7134 g/ml Flammable Bromobenzene C6H5Br -30.6°C 156°C 1.5 g/ml
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14 may be a possible EEC. Moreover‚ the calculated compensation temperature by inverting the straight line slope‚ T comp = 57.9 ºC‚ is higher than the average experimental value‚ T exp = 32.5 ºC. This great difference between these two values of temperatures might reflect the existence of real EEC rather than experimental error [58]. Another evidence of EEC is the approximate constant ∆G # with a significant change in both ∆H # and ∆S # . Finally‚ EEC was also investigated by using
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N.T. Wright’s Simply Jesus In N.T. Wright’s book Simply Jesus‚ he tries to bring to light the character of Jesus‚ attempting to articulate both who he was‚ is‚ and his mission. He draws mostly from the gospels - though he borrows from other books as well - to paint this picture. Wright argues that the perception of Jesus has become muddled as culture and history have distanced themselves and confusion has ensued over the actions of Jesus‚ as they quite contradictory to general expectations. He
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Making Sodium Chloride Equipment: Method: 1. Firstly‚ safety measures were taken by putting on laboratory coats‚ wearing safety goggles and tying long hair back. This was to protect clothing‚ eyes and to avoid burning as the experiment included dealing with open flames. 2. The equipment needed (as shown and labelled in picture A) was collected. 3. Using a measuring cylinder for each‚ to be exact with measurements‚ we measured out 10cm³ of HCl and 10cm³
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November 15‚ 2007 Synthesis of 1-Bromobutane Introduction: The purpose of this experiment is to synthesize 1-bromobutane from 1-butanol and sodium bromide. In order for this reaction to reach completion there are four major operations that need to be performed. The four major operations include refluxing‚ simple distillation‚ separation‚ and drying. To begin‚ in order for the compounds to react they will be dissolved in water and sulfuric acid will be added. The addition of sulfuric acid will
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crystals 18.287g Claim: Based on my calculations‚ the theoretical yield of Aluminum was 18.160g‚ and the actual yield was 18.287g. This gives a percent yield of 100.699%. Evidence/ Reasoning: By looking at the overall reaction involved in the lab‚ we can see that two moles of Aluminum are needed to react in the reaction‚ producing 2 moles of KAl(SO4)2 ·12H2O. This lets us know that however many moles of Aluminum there are in the original sample will be equal to
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