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10.1038/ncomms7368 http://scihub22266oqcxt.onion/10.1038/ncomms7368 C4366488!4366488!25757068     free     free     free Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Nat+Commun ä ; 6 (ä): ä Nephropedia Template TP {{tp|p=25757068|t=ä. Photonic crystals cause active colour change in chameleons |pdf=|usr=}}{{25757068}} gab.com Text Photonic crystals cause active colour change in chameleons JO: Nat Commun http://www.kidney.de/pget.php?&tw=1&pmid=25757068 #FOAvip Many chameleons, and panther chameleons in particular, have the remarkable ability to exhibit complex and rapid colour changes during social interactions such as male contests or courtship. It is generally interpreted that these changes are due to dispersion/aggregation of pigment-containing organelles within dermal chromatophores. Here, combining microscopy, photometric videography and photonic band-gap modelling, we show that chameleons shift colour through active tuning of a lattice of guanine nanocrystals within a superficial thick layer of dermal iridophores. In addition, we show that a deeper population of iridophores with larger crystals reflects a substantial proportion of sunlight especially in the near-infrared range. The organization of iridophores into two superposed layers constitutes an evolutionary novelty for chameleons, which allows some species to combine efficient camouflage with spectacular display, while potentially providing passive thermal protection. Twit Text FOAVip Photonic crystals cause active colour change in chameleons ????Nat Commun http://www.kidney.de/pget.php?&tw=1&pmid=25757068 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=25757068 #FOAvip English Wikipedia <ref>{{Cite pmid|25757068}}</ref> Photonic crystals cause active colour change in chameleons #MMPMID25757068 Teyssier J; Saenko SV; van der Marel D; Milinkovitch MC Nat Commun ä[]; 6 (ä): ä PMID25757068show ga Many chameleons, and panther chameleons in particular, have the remarkable ability to exhibit complex and rapid colour changes during social interactions such as male contests or courtship. It is generally interpreted that these changes are due to dispersion/aggregation of pigment-containing organelles within dermal chromatophores. Here, combining microscopy, photometric videography and photonic band-gap modelling, we show that chameleons shift colour through active tuning of a lattice of guanine nanocrystals within a superficial thick layer of dermal iridophores. In addition, we show that a deeper population of iridophores with larger crystals reflects a substantial proportion of sunlight especially in the near-infrared range. The organization of iridophores into two superposed layers constitutes an evolutionary novelty for chameleons, which allows some species to combine efficient camouflage with spectacular display, while potentially providing passive thermal protection. äPhotonic crystals cause active colour change in chameleons (epmc).pdf DeepDyve Pubget Overpricing