Stain

staining techniques before the Gram stain came about in 1883. These old staining techniques brought about issues because they stained both the tissue and the cells so it was hard to differentiate between the two. Christian Gram is the inventor of the gram stain and found this technique when he was looking at Streptococcus pneumoniae in the lung tissue of people and animals (1). When working with these tissues, he found that this bacterium would take up a specific stain and leave the rest of the…

Discussion Microscope is an optical instrument that have magnifying lens which is used for inspecting objects that is too small to be seen or to be seen distinctly and in details by the unaided eye. Microscope also is an optical instrument that keep observe specimen in resolution and magnitude way. However, there are some microbes such as viruses that cannot be observe by certain microscope and this microbes has to be observe using electronic microscope which has more magnification power. In…

Do not vacuum the stone, as rough vacuum cleaner wheels could scratch the stone. Take note of and treat any stains on the hearth. To treat a stain, apply the correct solution to the area, dab the stain, and then rinse the area with warm water. Treat stains on bluestone using the following methods: Oil-Based Stains - Apply ammonia, mineral spirits or acetone. Organic Stains - Spray the area with a 12% hydrogen peroxide solution. Rust - Purchase and apply a poultice from your local…

bloodstains for the purpose of reconstructing the events that took place in the case of violent crimes.1 Using the sciences of fluid dynamics and trigonometry, BPA examiners form opinions about what did or did not happen by examining elements of the stains such as the size, shape, distribution…

Brushing and flossing your teeth is essential for keeping them white. However, there are some foods that can cause your teeth to stain. If you want to keep your teeth white, then you will have to limit your consumption of foods that stain. Foods That Stain Teeth Pasta Sauce Pasta sauce can stain your teeth because of its bright red color. It is also acidic, which cause your teeth to erode. You should consider eating broccoli or kale after you eat pasta sauce. Dark green vegetables have a film…

Gram positive bacteria is brown-brenn gram stain is preferred to detect the positive bacteria. 13. What is the ideal staining for identifying a Gram negative bacteria – Please explain your answer? The ideal staining for identifying a Gram negative bacteria is the brown-brenn modification is superior for the detection of the gram negative bacteria. 14. How does ImmunoHistochemistry staining work – Please explain? ImmunoHistochemistry staining is a stain that can detect or identify…

The purpose of this experiment was to determine the Gram stain of the certain slant cultures we used in class, Escherichia coli and Staphylococcus aureus, under a microscope. Since it is the most important staining procedure in microbiology, it is used to distinguish between gram-positive and gram-negative organisms. The gram-positive cells stain purple, and the gram-negative stain a pinkish color. This staining is a differential stain that allows is used to identify the changes between…

Aims The aim of this practical was to determine the presence of blood on multiple piece of clothing for further analysis by using various preliminary tests and to see the rate and duration of chemiluminesence of the Phadebas paper test. Introduction To a forensic investigation blood is of unparalleled importance, it has multiple functions in a forensic investigation; The book criminal investigation (Christine Hess Orthmann, Kären Hess, 2012) states “blood assists in establishing that a crime…

“Reconsidering the Stain on Gender and the Body in Frankenthaler’s Painting” written by art historian Lisa Saltzman, discusses the dissolution of boundaries between gender categories throughout post World War 2 America. Saltzman’s central argument focuses on America’s patriarchal society and their necessity to restore hierarchy and social order when faced with the potential shift in power with the rise of influence of the female gender. In this article Saltzman uses Frankenthaler’s painterly…

After taking notes on the physical appearance of the bacteria’s, a gram stain was conducted on the isolated bacterial sample. The stain process is extremely essential because it separates the bacteria in two groups of gram positive and negatives bacteria’s .in addition, the gram stain shows the color, shape, size, and morphology of the bacteria. In order to narrow our search for unknown microbe, acid fast, spore and capsule stain were…