What we found on the web about Melanin
Melanin (Greek μέλας, black; pronounced /ˈmɛlənɪn/ ) is a class of compounds found in plants, animals, and protists, where it serves predominantly as a pigment.
Human skin color can range from almost black (due to very high concentrations of the dark brown pigment melanin) to nearly colorless (appearing pinkish white due to the blood ...
Melanocyte-Stimulating Hormone (MSH) Melanocyte-stimulating hormone gets its name because of its effect on melanocytes: skin cells that contain the black pigment, melanin.
More on melanin from Infoplease: melanin: meaning and definitions - melanin: Definition and Pronunciation; Suggestions for spelling of encyclopedia/melanin - The Infoplease ...
Get information, facts, and pictures about melanin at Encyclopedia.com. Make research projects and school reports about melanin easy with credible articles from our FREE, online ...
Melanin is a natural substance that gives color (pigment) to hair, skin, and the iris of the eye. It is produced by cells in the skin called melanocytes.
melanin (mĕl`ənĭn), water-insoluble polymer of various compounds derived from the amino acid tyrosine tyrosine (tī`rəsēn), organic compound, one of the 20 amino acids ...
In the near infrared wavelengths of light used for iris recognition (700nm - 900nm), iris pigmentation and apparent colour in the visible band (400nm - 700nm) play almost no role.
I saw this segment on a health medicine show where a man was given a series of injections over a matter of time and gradually his skin became darker. I was not sure if it was ...
The melanin samples were cornpressed into cylinders 3 min in diameter and 0.1 to 10 min in length. The cylinder of melanin was compressed in a quartz tube (inner diameter, 3 min ...
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Melanin (Greek μέλας, black; ) is a class of compounds found in plants, animals, and protists, where it serves predominantly as a pigment. The class of pigments are derivatives of the amino acid tyrosine. Many melanins are insoluble salts and show affinity to water. The most common form of biological melanin is eumelanin, a brown-black polymer of dihydroxyindole, dihydroxyindole carboxylic acid, and their reduced forms. Another common form of melanin is pheomelanin, a red-brown polymer of benzothiazine units largely responsible for red hair and freckles. The presence of melanin in the archaea and bacteria kingdoms is an issue of ongoing debate amongst researchers in the field. The increased production of melanin in human skin is called melanogenesis. It is stimulated by the DNA damages that are caused by UVB-radiation, and it leads to a delayed development of a tan. This melanogenesis-based tan takes more time to develop, but it is long lasting.

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