The chemistry of hairspray What is hairspray: introduction Hair spray (or hair lacquer) is a common household aqueous solution that is used to keep hair stiff or in a certain style. Weaker than hair gel‚ hair wax‚ or glue‚ it is sprayed to hold styles for a short period of time. Using a pump or aerosol spray nozzle it sprays evenly over the hair. Hairspray was first developed and manufactured in 1948 by Chase Products Company‚ based in Broadview‚ Illinois.Its active ingredient is a suitable
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Chapter I. The Problem and it’s Background Introduction Aloe Vera is a species of succulent plant that probably originated in northern Africa. The species is frequently cited as being used in herbal medicine since the beginning of the first century AD. Extracts from A. Vera are widely used in the cosmetics and alternative medicine industries‚ being marketed as variously having rejuvenating‚ healing or soothing properties. Aloe Vera is one of the only known natural vegetarian sources of Vitamin
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-Tique Corporation must decide if and how the company will introduce an aerosol can package for its Soft and Silky Shaving Gel‚ including a determination of product size (5.5 or 10 oz.) and location (personal care or toiletries). Furthermore‚ the manager needs to decide if a test market is necessary to evaluate the new packaging. Strategic Issues Product Soft and Silky Shaving Gel (SSSG)‚ a women’s shaving product that contains moisturizers‚ is currently packaged in a 5.5 oz. plastic tube and is located
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The picture above shows a typical gel electrophoresis set up. The clear container in the center of the picture is called a gel electrophoresis chamber. It contains the agarose gel that will be loaded with genetic material‚ as well as a buffer solution. It is connected to a DC power supply via electrodes. This picture was taken at Paw Print Genetics laboratory in Spokane‚ Washington. Viney and Fenton (1998) defined the term electrophoresis as‚ “the migration of charged particles through a static medium
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Colon Cancer Scenario Introduction: Gel electrophoresis is an important molecular biology tool: it enables us to study DNA. It can be used to determine the sequence of nitrogen bases‚ the size of an insertion or deletion‚ or the presence of a point mutation; it can also be used to distinguish between variable sized alleles at a single locus and to assess the quality and quantity of DNA present in a sample. Gel electrophoresis is a method of separating chemical compounds and molecules by their size
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DNA Isolation and Visualisation The laboratory work today consists of three stages. 1. Separation and visualisation of DNA on agarose gel 2. DNA extraction 3. Virtual electrophoresis Part 1 involves casting a gel‚ which then requires approximately 30 minutes to set‚ followed by 1 hour to run. Consequently‚ you might want to cast the gel and let it set whilst you undertake Part 2 - your DNA extraction. Make
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Objectives * To learn the procedures needed in extracting the bacterial plasmid DNA * To determine the concentration of original DNA sample and purity of prepared DNA sample by using spectrophotometer * To analyze the extracted DNA sample by gel electrophoresis Materials and methods (Refer to UDBB2144 Laboratory 2A Manual Principles of biotechnology page 6-10) Results 1 2 3 4 5
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lab is to implement the technique of gel electrophoresis in the purification and size determination of various proteins and DNA fragments. In order to do this‚ a polyacrylamide gel will be prepared and placed in a buffer-containing gel electrophoresis apparatus. Next‚ an aliquot of acid phosphatase and a molecular weight marker (Composed of Phosphorylase B‚ bovine serum albumin‚ ovalbumin‚ and carbonic anhydrase) will be placed into separate wells within the gel‚ and the apparatus will be connected
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Making an Agarose Gel AIM: To be able to make and agarose gel and perform gel electrophoresis in six different dyes. Also‚ to extract DNA from wheat germ. INTRODUCTION: Agarose gel is a substance that is used in science for gel electrophoresis and size exclusion chromatography. These processes use agarose gel to separate and analyze proteins and DNA. The medium is composed of a purified agarose powder that has been boiled in a buffer solution and then cooled into a gel. Agarose gel is most commonly
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piece of DNA and how does gel electrophoresis separate DNA molecules present in a mixture? Hypothesis: If the pGLO plasmid is inserted into competent Escherichia coli cells‚ then the transformed bacteria will be resistant to ampicillin and will glow green under UV light. If samples of DNA are cut using certain restriction enxymes and separated using gel electrophoresis‚ then the smaller the DNA fragment cut‚ the greater the distance it will travel in the gel. Variables: The control
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