Gel

DNA profiling is a fast paced technology that allows DNA to be sampled and connected to the identity of one person. One of the main uses for DNA profiling includes finding DNA at crime scenes and having the ability to work out the events that may have occurred (Better Health, 2015). This process includes the collection and sampling of DNA found at the scene of the crime to those who are suspected to have committed a crime. In Australia in 2011, 60% of those held in custody have previously been…

TiV photocatalyst was prepared by sol–gel method using tetra-n-butyl titanate as the precursor. Solution A was prepared by dissolving 17 mL TBT in 30 mL anhydrous ethanol with stirring (300 rpm) for 30 min. The other solution that contained 28.35 mL anhydrous ethanol, 7.25 mL deionized water and 20 mL 3 M acetic acid was slowly added into the above solution with magnetic stirring at room temperature. The prepared mixture was further hydrolyzed for 60 min with stirring until the transparent sol…

The U.S. personal care and cosmetics market represents enormous opportunity. According to industry marketing consulting firm, The Beauty Company (2012), the industry surpassed pre-recession sales levels to grow to over $38 billion in 2011. Some additional facts the firm notes about the market: • The average U.S. consumer spent $616 on personal care in 2008 • Women aged 16-65 shop for beauty products 5 times per year on average, spending an average of $43 each time. • Households earning $75K+…

Jatropha gossypiifolia L. (Euphorbiaceae), widely known as “bellyache bush,” is a medicinal plant largely used throughout Africa and America for treatment of inflammatory analgesic antidiarrheal diseases. In spite of some published data on its efficiency, there are still few toxicological data unfolding the safety of this plant. The plant was extracted with many solvents (pet. ether, ethanol, and water). The preliminary phytochemical outcomes revealed that flavonoids and other glycosides as…

Figure 3.1.2. Antibody titres of rabbit antisera. The antisera were collected from immunized rabbits and antibody titres measured by indirect ELISA as described under Methods (section 2.2.3.1). 3.1.2.1.3 Purification of α-LA, HRP and human erythrocyte specific polyclonal IgG The IgG fractions were purified from rabbit sera by ammonium sulphate precipitation followed by negative ion exchange chromatography employing DEAE-cellulose. The antisera were decomplemented, IgG fraction precipitated by…

Fading Away Mosquito bites in babies Nothing is more annoying than waking up and finding your baby’s face full of ugly mosquito bites? At times, I really feel like why are they only after my baby? Why can’t they go someplace else? These blood-sucking creatures are really a menace and it hurts immensely to see that they have been feeding upon your child’s sweet blood. When mosquitoes bite babies, one can see small red bumps along with swelling around the bite and rashes. In severe cases, the…

Hair tonic is an "old school" hair styling item. It makes the hair look glossier (however some say greasier), something which many individuals saw as an indication of sound hair. The oils in the hair tonic likewise hold the hair set up, making it less demanding to style, much like mousse or hair splash. They contrast from other hair styling items in that they are quite often a fluid that aside from "grease" a hair tonic that arrives in a thick or other semi-strong shape, with mineral oil or…

composition measures the thickness of subcutaneous fat. The BodyMetrix BX2000 A-mode ultrasound is used in conjunction with associated body view software in order to observe and record these fat measurements. As with any other diagnostic ultrasound, gel is applied to the transducer and moved back and forth; it is important that minimal pressure is applied as this could compromise the true thickness of the subcutaneous fat. This procedure is used for both coaches and the athletes themselves to…

TLC and HPTLC Introductions Thin layer chromatography (TLC) is derived from liquid chromatography where liquid serves as mobile phase and thin layer of substance on a flat late surface serves as stationary phase. The thin layer of materials act as sorbent while the mobile phase known as solvent. Solvent will send the solutes through the sorbent depends on the strength of the mobile phase as it dissolved the solute and send them up the plate against gravity ,and resistance of sorbent…

Chromatography is a key aspect in chemistry. It allows one to separate molecules based on a variety of things. In labs 3 and 4 we looked at two of the characteristics that molecules carry that can help separate them. Lab 3 used spectrophotometry once again, but the concept that garnered the most interest was ion exchange chromatography. Ion exchange chromatography works by separating molecules based on the individual charges they carry. In our case we used anion exchange chromatography, which…