Contributions of Phenoxazone-Based Pigments to the Structure and Function of Nanostructured Granules in Squid Chromatophores

Understanding the structure-function relationships of pigment-based nanostructures can provide insight into the molecular mechanisms behind biological signaling, camouflage, or communication experienced in many species. In squid Doryteuthis pealeii, combinations of phenoxazone-based pigments are ide...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1999. - 32(2016), 15 vom: 19. Apr., Seite 3754-9
1. Verfasser: Williams, Thomas L (VerfasserIn)
Weitere Verfasser: DiBona, Christopher W, Dinneen, Sean R, Labadie, Stephanie F Jones, Chu, Feixia, Deravi, Leila F
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Oxazines Pigments, Biological Xanthenes xanthommatin 521-58-4
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520 |a Understanding the structure-function relationships of pigment-based nanostructures can provide insight into the molecular mechanisms behind biological signaling, camouflage, or communication experienced in many species. In squid Doryteuthis pealeii, combinations of phenoxazone-based pigments are identified as the source of visible color within the nanostructured granules that populate dermal chromatophore organs. In the absence of the pigments, granules experience a reduction in diameter with the loss of visible color, suggesting important structural and functional features. Energy gaps are estimated from electronic absorption spectra, revealing highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) energies that are dependent upon the varying carboxylated states of the pigment. These results implicate a hierarchical mechanism for the bulk coloration in cephalopods originating from the molecular components confined within in the nanostructured granules of chromatophore organs 
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700 1 |a DiBona, Christopher W  |e verfasserin  |4 aut 
700 1 |a Dinneen, Sean R  |e verfasserin  |4 aut 
700 1 |a Labadie, Stephanie F Jones  |e verfasserin  |4 aut 
700 1 |a Chu, Feixia  |e verfasserin  |4 aut 
700 1 |a Deravi, Leila F  |e verfasserin  |4 aut 
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