Buffy coat is the fraction of a centrifugated blood sample that contains most of the white blood cells. After centrifugation, one can distinguish a layer of clear fluid (the plasma), a layer of red fluid containing most of the red blood cells, and a thin layer in between, the buffy coat, with most of the white blood cells and platelets. The buffy coat is used, for example, to extract DNA from the blood (since red blood cells do not contain DNA). A laboratory centrifuge tabletop centrifuge A centrifuge is a piece of equipment that puts a substance in rotation around a fixed axis in order for the centrifugal force to separate a fluid from a fluid or from a solid substance. ... Red blood cells (erythrocytes) are present in the blood and help carry oxygen to the rest of the cells in the body Blood is a circulating tissue composed of fluid plasma and cells (red blood cells, white blood cells, platelets). ... White blood cells (also called leukocytes or immune cells) are a component of blood. ... Blood plasma is the liquid component of blood, in which the blood cells are suspended. ... Human red blood cells Red blood cells are the most common type of blood cell and are the vertebrate bodys principal means of delivering oxygen from the lungs or gills to body tissues via the blood. ... A 250 ml bag of newly collected platelets. ... Space-filling model of a section of DNA molecule Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions specifying the biological development of all cellular forms of life (and most viruses). ...

The buffy coat is usually whitish in color (but sometimes green, if the blood sample contains large amounts of neutrophils, which are high in green myeloperoxidase). Neutrophil granulocytes, generally referred to as neutrophils, are a class of white blood cells and are part of the immune system. ... Myeloperoxidase (MPO) is a peroxidase enzyme (EC 1. ...

Quantitative Buffy Coat (QBC) is a laboratory technique to detect infection with malaria or other blood parasites: the blood is centrifugated and stained, and the fluorescing parasites can then be observed under ultraviolet light at the interface between red blood cells and buffy coat. Red blood cell infected with Malaria ,derived from mala aria (Italian: bad air) and formerly called ague or marsh fever in English) is an infectious disease which causes about 350-500 million infections with humans and approximately 1. ... For the rare minieral, see Parisite. ... Fluorescence induced by exposure to ultraviolet light in vials containing various sized Cadmium selenide (CdSe) quantum dots. ... Ultraviolet (UV) radiation is electromagnetic radiation of a wavelength shorter than that of the visible region, but longer than that of soft X-rays. ...