Search for dissertations about: "melanosomes"
Showing result 1 - 5 of 8 swedish dissertations containing the word melanosomes.
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1. Molecular, micro- and ultrastructural investigations of labile tissues in deep time
Abstract : This thesis comprises investigations of microstructures and molecular remains, preserved in a variety of fossil specimens. The results are presented in six papers, collectively aiming to thoroughly examine fossil traces of such remains by employing a combination of both established and relatively new analytical methods. READ MORE
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2. Melanosome transfer, photoreception and toxicity assays in melanophores
Abstract : Many animals such as fish and frogs have developed the ability to change colour of their skin to adapt to the environment or to signal to other individuals. This ability is due to specialised skin cells called melanophores. READ MORE
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3. Melanophores : cell biophysics and sensor applications
Abstract : This thesis deals with studies of melanophores and melanosomes by means of a physical approach. Melanophores are pigment cells that give the black colour to many vertebrates, e.g. fishes, frogs, and reptiles. READ MORE
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4. Organelle movement in melanophores: Effects of Panax ginseng, ginsenosides and quercetin
Abstract : Panax ginseng is a traditional herb that has been used for over 2000 years to promote health and longevity. Active components of ginseng include ginsenosides, polysaccharides, flavonoids, polyacetylenes, peptides, vitamins, phenols and enzymes, of which the ginsenosides are considered to be the major bioactive constituents. READ MORE
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5. Signaling for color change in melanophores : and a biosensor application
Abstract : Melanophores are dark brown pigment cells located in the skin of fish, amphibia, reptiles, and many invertebrates. The color of the animal can change via rearrangement of pigment granules, melanosomes, in the cells. The dark melanophores can either hide colorful cells so that the animal appears dark, or let through colors from underneath. READ MORE